iPod Classic 120: some questions

Posted by: Taym

iPod Classic 120: some questions - 07/11/2008 22:42

I got it a week ago and spent now some time with it. It's a nice device, which still can't compare with the Empeg feature set, but it is pleasant to use, overall. Nicely built, it is quite light and thin, IMO.

Now, some issues I had and could not address by reading manuals and tech support:

1. Why doesn't the Album name scroll?!
2. How do I show the other file tags? Hopefully they're not only accessible on iTunes...
3. iTunes: it really improved since last time i tried it, but I still don't particularly like it. Is there a way to make it monitor my HHD media directory, so that Music Base is automatically updated when I lounch it, or when I tell it to update itself? I see it stores some files and db in %userhomedir%\music\iTunes . Is it possible to change that? I can't remember the sw asking me at install time, and I can't find anywhere I can change that location. I did actually find what looked like the right setting to change, but nothing happened when I changed it.
What would you recommend if I wanted to use some other iPod manager that runs in Windows which in particular could monitor a HDD directory where I keep my music collection, and disregard all other music in my HDD?

4. Now, is it me, or the headset output has a quite low audio quality? I am using quite expensive Sennheizer in-ear headset, and I really think the quality is low. I realize I do not have a dock yet, which supposedly provides a line output that will hopefully allow me to use the iPod as my main MP3 player in the house, but still when walking I'd like some better sound experience. This really disappoints me. Especially now that Zune 120 just hit the market.
Posted by: Taym

Re: iPod Classic 120: some questions - 08/11/2008 10:56

Ok, first off sorry if many of my observations are obvious to the many of you who are already familiar with the iPod.

Now, I could some how improve the sound quality using some better, not in-ear headsets. It seems that my in-ear ones, which I used well with my laptop and my home stereo, were lacking some bass frequencies when used with the iPod. Other non in-ear headsets work much better.

Howerver, one problem still remains: most, if not all, my mp3s, sound at a low volume on the iPod. I can increas the volume to max and still be ok with it. And, I am really not a fan of loud music. Is this normal? Should I correct the volume of my mp3s in iTunes and then resync?

Posted by: bonzi

Re: iPod Classic 120: some questions - 09/11/2008 07:29

Originally Posted By: taym
Howerver, one problem still remains: most, if not all, my mp3s, sound at a low volume on the iPod. I can increas the volume to max and still be ok with it. And, I am really not a fan of loud music. Is this normal? Should I correct the volume of my mp3s in iTunes and then resync?

iTunes supposedly determine the max volume at which tracks are encoded, and then there is sound check function on iPod, which should adjust the gain in order to normalize everything. Of course, like everything else, it doesn't work nearly as good as equivalent empeg functionality....

Bonzi
Posted by: bonzi

Re: iPod Classic 120: some questions - 09/11/2008 07:36

Originally Posted By: taym
Now, some issues I had and could not address by reading manuals and tech support:

1. Why doesn't the Album name scroll?!
2. How do I show the other file tags? Hopefully they're not only accessible on iTunes...

Next, you will ask how to search within and reorder active playlist, unscramble the running order around a tune (in order to play the original album)... wink

No way to do that, AFAIK. And they have Hugo on board (they still have, don't they?)...

But still, I am more happy with my 160GB Classic than I thought I would be.

Bonzi
Posted by: andy

Re: iPod Classic 120: some questions - 09/11/2008 07:39

Originally Posted By: bonzi

iTunes supposedly determine the max volume at which tracks are encoded, and then there is sound check function on iPod, which should adjust the gain in order to normalize everything. Of course, like everything else, it doesn't work nearly as good as equivalent empeg functionality....

Unless you are listening to the Police wink Several of their tracks are completely ruined by auto volume adjust...
Posted by: Taym

Re: iPod Classic 120: some questions - 09/11/2008 08:23

Originally Posted By: bonzi
Next, you will ask how to search within and reorder active playlist, unscramble the running order around a tune (in order to play the original album)... wink


Ok, I get it, I am a spoiled Geek (proudly so) wink At least, in Apple's mind, I guess. smile

On that note, I suppose there's no way to have Albums (within an Artist) sorted by the year an not by their name. Oh well...

One thing really bothers me, so far. Audio quality at the standard headset output jack is really poor. Volume keeps being relatively low, even if I activate the auto-gain fucntion. Which I don't lilke in theory as it could well decrease ever further audio quality, as Andy is confirming. I just want to be able to increase and decrease the volume as needed, and have enough power to do so without problems. I'd happily use a thicker and heavier ipod to that purpose.
Posted by: bonzi

Re: iPod Classic 120: some questions - 09/11/2008 12:44

Originally Posted By: taym
Ok, I get it, I am a spoiled Geek (proudly so) wink At least, in Apple's mind, I guess. smile

Well, not all Karma owners are geeks, and they have been spoiled like this and worse... wink

Originally Posted By: taym
On that note, I suppose there's no way to have Albums (within an Artist) sorted by the year an not by their name. Oh well...

In iTunes yes, I am not sure about iPod, but I mostly shuffle everything (or almost everything - for example, I usually play a list that skips long pieces - like those LvB's symphonies that BBC was kind enough to provide a few years ago), anyway.

Originally Posted By: taym
One thing really bothers me, so far. Audio quality at the standard headset output jack is really poor. Volume keeps being relatively low, even if I activate the auto-gain fucntion. Which I don't lilke in theory as it could well decrease ever further audio quality, as Andy is confirming. I just want to be able to increase and decrease the volume as needed, and have enough power to do so without problems. I'd happily use a thicker and heavier ipod to that purpose.

I also notice I am often at full throttle when listening through earphones. Even those with rubber seals are sometimes not loud enough.

Ah, well....
Posted by: Taym

Re: iPod Classic 120: some questions - 09/11/2008 14:22

I just had here a friend who owns an iPod generation 5. By using his earphones, he confirmed that my iPod sounds definitely softer at full throttle. I need to make some test myself, but I am starting to tink that the iPod Classic (gen6, right) is somewhat worse in that regard. It really does not sound nice... frown on earphones...
Posted by: Taym

Re: iPod Classic 120: some questions - 09/11/2008 17:32

I've been looking for some real review of the most recent ipod classic 120GB, and here and there I read of people finding like me that the audio quality is rather low. Wikipedia reports this:
Quote:

According to certain tests performed both by hearing and through computer analysis of the sound, the 6th Generation iPods lack sound quality in the mid range, and produces less spatial information (i.e. stereo sound plays 'inside your head' instead of 'outside') due to higher impulse in the treble compared with 5G.[5] Apple has not yet commented on this problem.

A firmware update, 1.1.1, released by Apple for the iPod Classic is said to, among other things, improve the sound quality. [6] However, no details on these improvements were given on the Apple website.

Another later update, 1.1.2, is shown to correct bug fixes, but is nonetheless another minor update.


That really depitcts what I am hearing. And, the volume lever is rather low, as I said before.
Posted by: wfaulk

Re: iPod Classic 120: some questions - 09/11/2008 17:55

You could try finding some different lower-impedance headphones. I don't know what the specs are on the earbuds that ship with iPods these days, but it's worth looking into.

Edit: The Apple web site says they're 32Ω. You could try the Denon AH-C351K, Etymotic ER-6i, or Sennheiser CX300-B headphones, which are all far lower impedance. Or you could try a portable amp, but that's probably not an ideal solution.
Posted by: Taym

Re: iPod Classic 120: some questions - 09/11/2008 18:35

Yes. I am planning to try some different headsets and earplugs, even though I already tried 3 high-end sennheizer and 1 high-end Sony. No significant improvement.

To tell you the truth, what I am honestly thinking I should really do is sell this iPod Classic on eBay to some iPod fan, since there are many, and get a Microsoft Zune, which I am learning more and more about. I am so mad with Apple as of now, that probably this makes me look at the Zune as a better device than it actually is. However, most review talk about extremely good audio quality for a portable player. I guess it is easy to beat the iPod in this.
Zune, however, does support lossless WMA files, which is extremely appealing. It has a bundled FM radio, and the iPod does not. It comes with WiFi (and iPod does not), a larger and nicer 3.2" display than the iPod, and it does have a number of nice accessories (alarm clock, docks of all kinds, etc.): not as many as the iPod's, but those that I need.
I am not even mentioning the FM-related features, as I am not really interested in tagging and downloading music on line. I just want to buy my CDs, rip them at the highest possible quality, and listen to them at the highest possible quality.

Sorry for venting. I just can't believe this thing sounds so bad. I've been testing a reading on-line all evening, and I am so disappointed.

All I need is to somehow test how the Zune integrates with the Alpine iDA-x100 which I am going to install in my car. If it does well (as I hope, since it is MTP compatible), I'll move to Zune in a second.

Quoting a CNN review (here: http://www.cnn.com/2008/TECH/ptech/10/06/review.zune/)
Quote:

Despite its lack of EQ controls, the Zune 120 sounds amazing over a good pair of headphones.

Now, this, like most review,may be somewhat biased. But they don't really sound they want to necessarily speak in favor of Zune.

If I wasn't laughing inside myself, I'd cry. For one time in my life when I bought something trusting the wide market success and random opinions, rather than gather data and facts, I am paying it as I deserve. I am such a Lemming.
Posted by: bonzi

Re: iPod Classic 120: some questions - 09/11/2008 19:32

Originally Posted By: taym
If I wasn't laughing inside myself, I'd cry. For one time in my life when I bought something trusting the wide market success and random opinions, rather than gather data and facts, I am paying it as I deserve. I am such a Lemming.

I bought a 160GB iPod Classic as soon as it came out, not expecting to like it too much, simply because it was the only player of such a capacity available in Croatia. I might have bought Archos 605 WiFi (a definitive overkill, since I am not into portable video) if someone was selling it locally, just to avoid Apple bandwagon.

That said, I am more satisfied with iPod "experience" than I thought I would be. That includes the sound quality. I guess this means I am not such an audiophile; I just like music wink.

Of course, the observation of weirdness of having Hugo in the company and still selling the flagship product with UI years behind his ten years old creation stands. crazy Sigh, I miss the days of rapid succession of betas accompanied by even more rapid stream of HiJacks and assorted other goodies...

Cheers!

Bonzi
Posted by: Taym

Re: iPod Classic 120: some questions - 09/11/2008 20:39

Actually, I don't consider myself an audiophile. Or, at least, not if that mean looking for unneeded audio quality just for the sake of it. I just try to get the quality I like, whatever that is. And, I honestly dislike the way this thing sounds. I find it worse than my cassette walkman form the 80s, and that's bad smile It's just flat, very lacking bass frequencies, lacking spatial stero effect, almost completely.

Volume level is also so low that I can listen to it at max volume without any problem. That's ok in house, but bad when going around with noise aroun you (busses, traffic - i use this in my bike commute to work). And, just to tell you how bad volume leve is: I mostly listen to radio when riding to work. In that specific occasion, I don't care about audio quality: I am listening to people talking and also I want to pay attention to noises around me. But, I want to understand what's being said. In some occasions, I just find it hard, just because of traffic noise. At max volume of course. Not good.

And, I am almost sure it is worse than G5 iPods, which I have listened to, occasionally. After ruling out all EQ and earplugs issues, I am left thinking they just decreased audio quality on the stereo jack in G6 .
Posted by: wfaulk

Re: iPod Classic 120: some questions - 09/11/2008 22:52

Originally Posted By: taym
I already tried 3 high-end sennheizer and 1 high-end Sony. No significant improvement.

What was their impedance, though? If it was the same, then that wouldn't improve the volume issue. Of course, I doubt that a new pair of headphones will significantly improve an audio quality problem that people have apparently tested empirically (I'm taking you at your word on that), but it should increase the volume.
Posted by: bonzi

Re: iPod Classic 120: some questions - 10/11/2008 05:02

My experience with Classic is not that bad, but I am rarely in busy, noisy traffic with it (and never on a bike). Actually, I usually listen to it through amp and speakers fed through the docking connector.

Could the low earphones volume be on purpose (you know, litigations about hearing damage and such nonsense)?
Posted by: Taym

Re: iPod Classic 120: some questions - 10/11/2008 11:52

Quote:
Actually, I usually listen to it through amp and speakers fed through the docking connector.


Actually, that's a good point. I have not tested it yet, but the line out from the dock (i.e. from the bottom of the iPod, and not from the top earplugs socket) is supposedly a completely different story. Everybody I spoke to reports a much better signal there. And, if you have a device who is actually reading the digital raw stream off the ipod, then quality entirely depends on that external device.
Now, I am planning to test the dock asap. I do not have one and I am reluctant to buy one at this point. But I should have a some occasions to test it anyway.

Also, for the records, today I tested an iPod 80 GB from almost two yrs ago, and it sounds louder than mine. Not much better in terms of quality using Apple standards earplugs, but definitely louder than mine at max volume.

wfaulk, as to the impedence, unfortunately I do not know. As soon as I have a second I'll report the model names here.
Posted by: drakino

Re: iPod Classic 120: some questions - 10/11/2008 12:08

Could the volume issue be the legal cap Apple puts in place due to EU laws? If so, this appears to turn it off.
Posted by: bonzi

Re: iPod Classic 120: some questions - 10/11/2008 12:45

Originally Posted By: taym
Now, I am planning to test the dock asap. I do not have one and I am reluctant to buy one at this point.

This cable should do the trick.
Posted by: tman

Re: iPod Classic 120: some questions - 10/11/2008 15:50

Originally Posted By: drakino
If so, this appears to turn it off.

That guide is for an iPod touch. Not the same on a classic.
Posted by: Taym

Re: iPod Classic 120: some questions - 10/11/2008 19:27

Originally Posted By: bonzi
Originally Posted By: taym
Now, I am planning to test the dock asap. I do not have one and I am reluctant to buy one at this point.

This cable should do the trick.


I did not know there was a volume cap in EU. In theory, that may very well be affecting the output quality as well, depending on how it works. However, as tman says, the link does not reflect the dir structure of the iPod Classic. I am now looking for something similar for the Classic!
Posted by: Taym

Re: iPod Classic 120: some questions - 10/11/2008 19:39

Ok, somebody is saying all you need to do is increase the volume in iTunes.

I am trying this. However, does US iPod Classic owner in here have iTunes volume settings to +100% for all tracks, or is it at 0, as it is on mine? Maybe iTunes recognizes EU iPods and automatically sets the volume at 0 instead of +100% ?
Posted by: Taym

Re: iPod Classic 120: some questions - 10/11/2008 22:54

Ok, the Internet is FULL of topics on this. The EU Volume Cap is affecting negatively so many people. Like me, hundreds of people can't listen to the iPod in traffic.
Now, I can reasonably assume this is not just me expecting too much from the iPod, and a real issue due to EU regulations.

Look at this, among the many i found: http://forums.macrumors.com/showthread.php?t=354326&page=2

I cannot express how much I disagree with laws like this one, in principle (this would deserve an entire other thread), but much more practically, my iPod sounds plain bad and I either find a solution to this, or I am going to sell this thing and get Zune or something else, before they get capped as well.
And, I feel so naive for not making some research and ask around before i purchased the iPod.

Does anybody have a Zune? Is the FM radio fully compatible with EU FM frequencies?
Posted by: mlord

Re: iPod Classic 120: some questions - 10/11/2008 23:19

Mmm.. Reading through that macrumors thread, post #81 poses a possible solution for you.

Another idea-- I wonder what happens if you pull down the Apple USA disk-initializer (or whatever they call it) s/w for the iPod and apply that to wipe the unit totally clean ? It's available, and normally used for drive replacement procedures..

Cheers
Posted by: Taym

Re: iPod Classic 120: some questions - 10/11/2008 23:51

Mark, actually I've been looking for some disk initializer for iPod, to no avail. I'd definitely try that. Also, do you know for sure the firmware is actually on the HDD?

I've also been trying to look for a US firmware somewhere, so far without success.

Post 81 is interesting. Before trying it, though, I wanted to make sure I can revert the change if something gets messed up. I am still reading...
Posted by: mlord

Re: iPod Classic 120: some questions - 11/11/2008 00:09

I was thinking of the Restore procedure described here, though it appears now to be done through iTunes.. You may need a non-EU iTunes account for this to do what I'm hoping it can do.

Cheers
Posted by: Taym

Re: iPod Classic 120: some questions - 11/11/2008 01:41

Ok. Increasing the volume to 100% in iTunes does not help. It simply allows you to reach the maximum volume "earlier" on the volume bar. It seems ti simply makes the volume increase non linear with the volume bar. That is strange, to me. I do not get the purpose of such a feature. Max volume is stil the same. Poor quality is unchanged.

So, I have only two options left, I believe:

1. Installing some US firmware or software in the iPod. I don't know how. Maybe, as you suggest Mark, trying to use some US-based iTune account.
2. Apply the change to the iPod sw using the Hex editor. Very risky as even simple software upgrades may make this change very unsafe.

Anyway, I am still hoping that the volume increase will also bring aome quality increase, assuming the volume cap has some side effect on sound quality. If not, this still remains a very low quality audio device in that regard.
Posted by: Taym

Re: iPod Classic 120: some questions - 11/11/2008 01:44

... oh, and Bonzi, thanks very much for the link. Yes, that cable could be a good solution, as it allows you to take the output from the dock connector.

However, I realized I already have one: the external iPod radio is, in fact, also such a connector: you plug the earplugs into the external radio, which is plugged to the dock connector. And... minimal change, close to none. I do hear some improvement, and noiced it since day one not understanding why. But, still very poor quality and low volume.

Other users report the same in several forums. So, I am assuming the volume cap is applied also to the dock connector, since some versions onwards...
Posted by: tman

Re: iPod Classic 120: some questions - 11/11/2008 02:54

Originally Posted By: taym
Ok. Increasing the volume to 100% in iTunes does not help. It simply allows you to reach the maximum volume "earlier" on the volume bar. It seems ti simply makes the volume increase non linear with the volume bar. That is strange, to me. I do not get the purpose of such a feature. Max volume is stil the same.

If it is doing that then there is a bug. It should cap the maximum volume to be something less.

I've never had any issues with the volume cap. If I get anywhere near the maximum on my limited iPod, it starts getting painful to listen to.

It may just be that the audio output stage in the classic just isn't very good. There appear to be users from all over the world complaining about bad sound quality so I don't think it is the EU volume cap.
Posted by: Taym

Re: iPod Classic 120: some questions - 11/11/2008 05:44

Quote:
If it is doing that then there is a bug.

in iPodwizard.net I ofund somebody who is experiencing exactly the same, and claims that by design. Unfortunately I can't find it right now, but I'll look again as soon as I can.
Which does not mean it is not a bug, of course...
Posted by: tman

Re: iPod Classic 120: some questions - 11/11/2008 12:57

Originally Posted By: taym
Quote:
If it is doing that then there is a bug.

in iPodwizard.net I ofund somebody who is experiencing exactly the same, and claims that by design.

Nope. It should limit the maximum volume.

Do you have a dock handy? It should do lineout and you can listen to see if the sound quality is also affected on that.
Posted by: Taym

Re: iPod Classic 120: some questions - 11/11/2008 21:38

A colleage had a Zune 30 (first Gen) for quite a while. I never bothered even looking at the device as I was never intereted, so far, in portable players. As you can imagine, today I asked her to let me use it for a while. I was impressed.

The sound is spectacular, compared to my iPod's. Actually, in absolute terms, is just good; as good as I expected from any player in this price range. Volume is slightly higher than my iPod's, but the quality is *remarkably* better. It was a real pleasure to listen to.
My colleague was complaining that the max volume is not as high as she would have liked.
Now, she is using... $8 earplugs. No kidding. $ 8, lowest quality ever, earplugs!!
And, she has not only higher volume, but mostly much much better sound quality. That old Zune 30 clearly is a device that would sound spectacular with good earplugs. I am going to soon test it with mine.

So, while its max volume is yes an issue, I believe the iPod 6G has also a serious problem with audio quality compared to its predecessors, and even mor eits competitors.

And, let me spend few words about Zune's sw and interface. While the case itself is not nearly as nice as the Ipod's, it is not bad looking, still neat and nice. And, its larger screen compensates completely for that. Your eyes are completely camptured by it and looking at the device is in the end just as, if not more, appealing that using the iPod. The larger screen is quite good and very readable. And the software (NOT yet updated to Zune 3,0) is graphically appealing, immeidate and very pleasant to use.
Just to add one more flaw to 6G iPod, Zune's responsiveness made me realize how frequently 6G iPod's sw pauses to load from the HDD. This never happens with G2 and 3 iPods I've used, and I believe not even G5.
Using this old and scratched Zune 30 was 10 times more rewarding and pleasant then my new shiny iPod, where the low volume is just one of the causes.

Finally, the radio: I've been reading many good things about Zune's FM tuner in the last few days, and I was expecting a lot. Well, it really ia good. Loud and clear, little statics, very nice, simple, and clear interface.

Once more, I really hope Zune integrates well with my car stereo, which is going to be a major selling point for me. But, having said thar, I may be getting a Zune regardless of this factor and regardless of how well I can fix the iPods audio issues. I think Zune is just a much better product, in almost all regards, plain and simple.
Posted by: Taym

Re: iPod Classic 120: some questions - 11/11/2008 22:00

Originally Posted By: tman

Do you have a dock handy? It should do lineout and you can listen to see if the sound quality is also affected on that.


I have a dock from iPod G2 that I can test tomorrow.
But, shouldn't the external radio by Apple work like a dock, since it takes audio output from the dock connector?
Posted by: tfabris

Re: iPod Classic 120: some questions - 11/11/2008 22:44

The Zune sounds much better than the iPod in terms of quality? They should sound very similar, given the same set of headphones and the same approximate volume level.

You keep talking about sound quality, but aside from the problem with low volume (which is a different measure from quality), you're not giving any specifics.

Depending on the actual quality problems you're having, I wonder if your iPod is perhaps a defective one? Or maybe the iPod is fine and there's something wrong with the files you've put on it?

Because every iPod I've seen sounds just fine at any volume level. The earbuds they ship with the thing suck, but if I put a decent set of earbuds in place, it sounds great. And you've already tried yours with different sets of headphones, so that's not the issue.

First, when you are judging quality, tell us about the song files you're using? Where did they come from, did you rip them yourself in iTunes, what was iTunes ripping quality settings configured as, etc?

Next, when you say bad quality, be specific. Do you mean low volume? Do you mean distortion? Do you mean bad frequency response? Bad stereo separation? If you mean bad frequency response, precisely which frequencies are we talking about?

Oh, another thing I thought of. Sometimes if the headphone jack is somehow not letting you plug the headphones in properly (like the problem with recessed headphone jack on the first gen iphones), then the contacts on the headphone connector might get summed mono or you might get only the left or the right audio output played into both ears. That could definitely be interpreted as bad sound quality.

In any case, you should narrow down the problem, because volume does not equal sound quality, and if you're actually having an issue with sound quality, it might indicate a defective unit.
Posted by: Taym

Re: iPod Classic 120: some questions - 12/11/2008 01:10

Quote:
The Zune sounds much better than the iPod in terms of quality? They should sound very similar, given the same set of headphones and the same approximate volume level.

Right. Unfortunately, in my direct experience they do not. frown

Quote:
I wonder if your iPod is perhaps a defective one

Yes, maybe my iPod is defective. I am planning to try few more things (see below) and then try to have it replaced. However, due to the high number of similar cases I've read about, I am now not very hopeful that I can solve my problems by replacing my iPod unit.

Quote:
but aside from the problem with low volume (which is a different measure from quality), you're not giving any specifics.

I thought I did, and I also did distinguish the two problems (please, see for example the post just above yours, where I state that Zune's volume is little higher, BUT quality - i.e. different issue - is much higher. I also explain there what I believe is the cause for the low (and still higher) Zune volume: 8-dollar earplugs).

However, to sum up, and add information I may have skipped in my previous posts:

Files I am listening to are MP3, 320 bps / CBR, no filter, encoded with Lame and Audiograbber by me and from my own CDs. These are files I got from my CDs at the best quality possible when they were ripped.

I find these problems:

1. low volume: So bad that at max volume and in normal traffic I cannot always understand radio talkshows or news. And, I find music listening very umpleasant.

2. low quality, meaning:
A. very significant lack of low frequencies. Dominance of mid frequences.
B. Yes, very little stereo separation, and consequent lack of "depth".
C. Very little sound dynamics. I would consider my iPod sounding very "flat".
D. No, as you can read in previous posts, i did not mention distortion. Which is relatively expected due to the very low volume.

These are the facts I am experiencing. Clearly, one my classify them in the realm of subjectiveness, as we talk about perception. But still, that's what they are to me.



On the field observations:

A. About Volume. I did notice that connecting the earplugs to the radio, which is in its turn connected to the dock connector of the ipod, the volume level IS slightly higher, but not significantly. This is consistent to what many are saying: the line out at the dock connector has a higher volume level AND better frequency response than the one ad the earplugs connector on top of the iPod.
However, in my case volume is so low even there that, as I said, in normal traffic you can't understand radio talk shows or news.


B. About Volume and Quality Issue.
iPod earplugs and my 100-Euro Sennheizer earplugs sound LITTLE different on my iPod. This never happened to me with ANY device I ever owned. I did try to test the two earplugs at my home stereo and at my PCs, and the difference between the two goes from clearly noticeable (Laptop) to impressive (Home Stereo, when listening to CDs).

C. About Volume AND Quality.
One iPod G2 I tested with Apple standard earplugs sounds at higher volume than mine with sennheizer. Better sound dynamics, too, and better response to low frequencies. Different rips of the same MP3s, though.

D. About Volume AND Quality
One iPod G5 I tested with Apple standard earplugs sounds at higher volume than mine with sennheizer. Better sound dynamics, too, but NOT better response to low frequencies, which I found lacking as well.
Different rips of the same MP3s, again, though.

E. About Volume AND Quality
Zune 30 test with cheap earplugs and different MP3s. see my previous post.



Now, if you make a quick search in Google for "iPod Cap volume", or "iPod Classic audio quality", you will find many forums and threads mentioning these very same issues. This makes me think that it is unlikely, even though possible, that I have a defective iPod, and makes me lean much more towards the possibility this is a widespread issue.
I am guessing that you are experiencing differently with your iPod(s) due to these factors:
* You using a previous generation than 6.
* You using a US iPod.
Or combination of the two.

So, you say you've seen several iPods:
What iPod generations have you used?
Was there any recent EU iPod that could be affected by the Volume Cap Issue?




Some temporary conclusions subject to revision as I gather more data and do whatever test I can:

I believe problem 1 (Volume) is explained by the EU volume cap we discussed above. I am also suspicious that this may be causing a decreased audio quality (see below).
I did in fact read a couple of forums where people supposedly succeeded in installing the US firmware and noticed some significant improvement in quality (not much volume, they say). Since Mark's post yersterday, I made some progress: I found such US firmware tonight. Here:
http://appldnld.apple.com.edgesuite.net/...d_24.1.0.3.ipsw
http://appldnld.apple.com.edgesuite....ipsw.signature
However, I have not tested them yet, so I still remain only suspicious that quality as well as volume issues may be related to EU volume cap.

I am also suspicious that the latest iPod Classic may have simply given up on audio quality in favour of something else: size of the device, battery life, end price.
Here I am just guessing.
Posted by: Taym

Re: iPod Classic 120: some questions - 12/11/2008 01:32

Originally Posted By: tman
If it is doing that then there is a bug. It should cap the maximum volume to be something less.


Tman, I did not find the thread I mentioned before, but found this. What that person describes is exactly what I am experiencing. In other words, if I set the volume to +100% on iTune, the max volume on the iPod does not change a bit. It only changes how the volume increases as I rotate my finger on the touch wheel.

Quote:

Secondly, adjusting the iTunes volume slider does not increase the maximum possible volume. It simply moves the position of the maximum volume point.

For instance, if you set the volume slider at +100%, iTunes and iPod will max out the volume at half way on the volume control (50%+100% of 50%=100%). If you increase the volume control past that half way mark, nothing happens. There is no further increase in volume. If you set the volume slider at +50%, iTunes and iPod will max out the volume at three quarters on the volume control (50%+50% of 50%=75%).




Posted by: tman

Re: iPod Classic 120: some questions - 12/11/2008 02:04

Ah. Misread your earlier post. The iTunes slider does that yes but that isn't the EU volume cap.
Posted by: Taym

Re: iPod Classic 120: some questions - 12/11/2008 02:13

Ok.
No, it isn't the volume cap setting. I was just hoping to use it to compensate for the volume cap issue, but because of how it works that's of no use...
Posted by: Shonky

Re: iPod Classic 120: some questions - 12/11/2008 03:26

Here's an idea (that mightn't be possible or practical), and I'm showing I'm an engineer for sure...

Playback a sine wave sweep and/or pink noise and sample on your PC sound card. Then do a frequency plot of that. Do one with the iPod and one with another player that sounds OK. Might give you an idea of what's not working.

Obviously best if you can do this with an uncompressed signal but not entirely necessary either. Also it depends on how good your soundcard/onboard sound is but these days I think almost anything would be good enough to get some idea what's wrong.

Whilst writing that, it's not some silly EQ setting turned on? Never used an iPod so not sure what kind of options are there.
Posted by: mlord

Re: iPod Classic 120: some questions - 12/11/2008 14:07

The empeg auto-eq tone files could be used for this, I suppose. Anyone still know where those are hiding?

For displaying the signal, there are a number of PC programs out there that implement a "sound card oscilloscope" function. Mmm.. I suppose even Winamp has a visual like that.

-ml
Posted by: tfabris

Re: iPod Classic 120: some questions - 12/11/2008 15:29

Originally Posted By: taym
2. low quality, meaning:
A. very significant lack of low frequencies. Dominance of mid frequences.
B. Yes, very little stereo separation, and consequent lack of "depth".
C. Very little sound dynamics. I would consider my iPod sounding very "flat".


Okay, that's a good description. It sounds like one of the following:

- As mentioned before by someone else, if the device has any kind of EQ settings or automatic dynamic compression settings (I forget what the dynamic compression thingy is called on an iPod), check to see if any of those features have been altered.

- Make sure it's not a problem with the stereo headphone jack or cable. Your description of that quality problem sounds very much like what happens when wires or contacts between the left and right channels get crossed, and you get summed mono problems. One way to check for this is to play a song where you know there are significant stereo panning effects. If you can't hear the panning effects as expected, that's your problem. For instance, I use the studio version of the song "The Camera Eye" by Rush, because its instrumental introduction has synthesizer chords that are played alternately in each ear, and you can clearly hear the separation.

- Bring it to an apple store if you have one near where you live, and, using your reference headphones, listen to their demo units there at the store and see if they sound the same or if they are magically better. If the demo units sound better, you've definitely got a duff unit and get it exchanged.
Posted by: Taym

Re: iPod Classic 120: some questions - 12/11/2008 17:10

More sperimental data ( smile ).

Today I listened an iPod Classic, 80GB, buought in the US, again belonging to a colleague (having bought a very popular player must have its pros... smile ). Standard cheap Apple earplugs. MP3s ripped and encoded in Itune, default settings, by my colleague.
Findings:
- Max volume is much higher, even though not as much as the G2 iPod the other colleague has.
- Sound seems more dynamic.
- Much stronger low frequencies, but definitely less powerful than the Zune 30 . Both the difference from my inexistent low frequency and the good ones from the Zune were very evident to me.

Mark, yes, actually I already have the Empeg Auto-Eq tone files in my iPod, trasferred from the Empeg itself. So, yes, I will definitely be doing some tests as soon as I have some time. smile


Tony, I've been trying all the EQ settings of the iPod, to no avail. I keep finding the audio way below par.

Cables: as I said above I've tested my iPod with several eaplugs and headsets, to no avail. Prolem cannot even be in the jack, as the issues I complain about are still present when conncting the earplugs to the dock connector (through the radio module).

Apple store: yes, that is an excellent idea I did not thin about. They do have iPods on display that can be tested. I have few apple stores easily reachable. That's another test I'll do.

As of now, I need to find a way to install US firmware in my iPod.

For the records, while all these tests are being done to satisfy my curiosity and mitigate or increase my disappointment at Apple, I ordered a Zune 120, which I hope I can use to listen to music and radio on my way to work. smile .
Posted by: Taym

Re: iPod Classic 120: some questions - 14/11/2008 00:29

So, after a hard day at work, here I am back with my iPod agenda.

... I am now desperately trying to install a USA firmware. I found an old 1.0.3, and followed the procedure to downgrade, which, according to dozens of thread I've read, is:

1. I placed both formware and signature files in the C:\users\taym\AppData\Apple Computers\iTunes\iTunes Software Updates, right where the 2.01 files used to be.
2. Removed from that same location the most recent files.
3. Reset the iPod (Menu+central Button)
4. Plugged it into my pc's usb port
5. Launched iTunes, and clicked RESTORE
6. Refused to check on line updates (automatic check was already disabled)
7. Was prompted to restore to current version of software or cancel the operation.

At point 7 I should've had an option to downgrade to a previous version, but no such button was there.

I read that by clicking SHIFT+RESET I shoul've obtain some menu or browse window that would allow me to select an older firmware manually, but SHIFT+RESTORE did not produce anything on screen.

I found one post where it is said that Apple disabled SHIFT+RESTORE in more recent versions of iTune (why, oh why?).

So, it seems I am stuck with the EU capped firmware. frown


What If i format the iPod HDD from Windows? Would I destroy all data or is there some hidden partition or else that would survive? Would I be able to restart from scratch with whatever firmware I want? Would I kill my iPod permanently?
Posted by: altman

Re: iPod Classic 120: some questions - 14/11/2008 03:37

To be honest, much of the problem here sounds like your headphones, as others have noted; did you try them on the Zune? Decent sennheisers are typically high impedance (64-600 ohms) and these are very hard to drive for battery powered players - to get any sort of power into them you need to have more voltage swing than you'll get out of a standard 3v audio path. You'll definitely notice a lack of punch and general anemia with the audio.

These players are designed to drive 16 or 32 ohm loads (iPod headphones are 32 ohm) - this goes for every portable audio device I've ever come across apart from the unreleased Rio high end one that I designed that did 6v audio out for this very reason smile

Solutions involve spending money... buying low impedance headphones (sennheiser do them) or a headphone amp. Boostaroo is a popular one - http://www.boostaroo.com/ - these have a boost dcdc supply in them to give the amp more headroom.

In my opinion the iPods before gen6 sounded better, but that's just my opinion... it's the first HDD iPod with DC coupled audio out, I think.

Hugo
Posted by: Taym

Re: iPod Classic 120: some questions - 14/11/2008 13:04

Hugo,

I am using Sennheizer CX500 .

• PET
• Freq. Response: 17 - 22000 Hz
• Impedance: 16 Ohm
• Sensibilità: 113 dB/mW

So, do you think the boostaroo aplifier would help? i don't really mind spending that money fi the result is good.

Or, do you have a recommended earplug I could try on my iPod?

Thank you!
Posted by: wfaulk

Re: iPod Classic 120: some questions - 14/11/2008 13:22

While the CX500 are rated by Sennheiser at 16Ω, tests seem to indicate that they actually have a greater impedance than that.
Posted by: Taym

Re: iPod Classic 120: some questions - 14/11/2008 13:35

I see. Do we have any impedance values out of those tests? Do you think the CX500 can still be considered good for an iPod, so that we can rule them out as the cause of the "poor" sound I am hearing (and assuming the problem is not me expecting too much)?

Anyway, I have some good news. After the update to 2.0.1 (yesterday), it seem to me that while the volume is still as low as before, sound seems slightly more dynamic. I wonder if others are experiencing the same.

Also, today I tested my sennheizer on the Zune 30 I mentioned in my earlier post, and I can clearly perceive a relevant difference in low frequencies and volume.
Posted by: wfaulk

Re: iPod Classic 120: some questions - 14/11/2008 13:43

I'm basing my information on the product descriptions at http://www.headphone.com/.
Posted by: Taym

Re: iPod Classic 120: some questions - 18/11/2008 17:40

Ok, litte updates.

Two more tests.

1.
iPod Classic 80GB, US version, 2007 vs iPod Classic 120 EU version, 2008 (mine)
Same headsets: Sennheizer CX500
Same Song (Roxanne, The Police), but different rips.
Difference in max volume very very evident. US iPod was unsustainable at max volume. Mine, as you know, just ok.
Low frequencies seemed better on the US one, maybe due to the more power to the earplugs.

2. Ipod Classic 30 GB, EU Version, 2006, vs iPod Classic 120 EU Version, 2008 (mine).
Same earplugs: sennheizer CX500
Same song, same rip.
Identical output to me.
Posted by: Taym

Re: iPod Classic 120: some questions - 18/11/2008 17:53

More information.

I tried to install older US firmware. Older simply because I could not find 2.0.1 US firmware, so far. iTunes does not allow me to install an older version of the firmware. This is, apparently, a recently added feature to iTunes. I tried to install an older firmware through iTunes 7.5, and it would not connect to my Ipod saying that my firmware reuqire iTunes 8.0

So, I was hoping that the iPod 80GB 2007 version was using the same firmware as mine is. Since it is a US 80GB iPod Classic, I was hoping to use it to get an US 2.0.1 firmware file. Unfortunately, it instead uses a different firmware. So, I am still stuck with 2.0.1 EU.

Does anybody happen to have a 2.0.1 iPod Classic US firmware? Please, pm me if so. smile
Posted by: sein

Re: iPod Classic 120: some questions - 18/11/2008 20:26

I can't really help you taym, but I just want to add that I just got an old 30GB iPod to play with. Its running rockbox rather than the normal iPod/iTunes software and I'm also disappointed with the sound quality with my Panasonic earbuds and Grado headphones. It sounds like a weak amplifier really, with the quality decreasing significantly when the volume is turned up. Not sure how much difference new firmware could make.

I'm comparing this with an iRiver L Player which I had a short while ago - it sounded absolutely great in my opinion, but had other problems.
Posted by: boxer

Re: iPod Classic 120: some questions - 19/11/2008 10:49

I'd have to go along with the faulty ipod theory: I'm probably one of the few people on this forum who wears hearing aids (I'm waiting for the bluetooth hearing aids, so that I can connect to all my sound sources in silence).
Obviously I take the aids out to use in-ear phones, and mine are the Sony ones with three different ear pieces to ensure a snug fit, they retail for about 30 quid in the UK.
I have the volume setting in the settings menu at full, in case I'm in a loud environment, but, in general, I have the volume control at about 60%, and it's perfectly audible even with my reduced hearing, downstairs on a bus, which is quite noisy towards the back.
As for quality of sound, I'm still fairly picky about how my music sounds, even with my reduced sensitivity and would prefer a graphic equaliser, but find the "Rock" setting ample for music comparable to the Police.
What I do notice is that using the dock and the AV cord connected to my hifi, I have to turn the ipod up much higher than the other line sources.
I'm using a free program called Sharepod instead of itunes, which I found to be rather slow to load and to navigate,
I load up stuff that I haven't watched on the TV and take it to Wales to watch in my hotel room, using the AV lead, which has proven to be a very useful function.
Posted by: Taym

Re: iPod Classic 120: some questions - 19/11/2008 18:42

Originally Posted By: boxer
I'd have to go along with the faulty ipod theory:

Well, but then why does mine sound just identical to the 30GB, EU iPod form 2006 (see my test n.2, three posts above) ? As of now, I think the whole problem is in the EU volume cap, which may very well be decreasing audio quality as well. And, I lean to think that in general iPod does not have a particularly good sound output at the earplug audio socket.
Posted by: Robotic

Re: iPod Classic 120: some questions - 19/11/2008 20:00

Originally Posted By: wfaulk
I'm basing my information on the product descriptions at http://www.headphone.com/.
Thanks for that link, Bitt. I've learned a lot from it.
Posted by: tman

Re: iPod Classic 120: some questions - 20/11/2008 04:32

Replace your iPod with a US model if you're that convinced it is the volume limit.

I don't know how they implemented it but I'd be surprised if it did significantly affect the sound quality in the way you're describing. I'd expect mass outcry over this as well since there are millions of iPods sold in Europe and the US.

Are you certain that it isn't a fault with your iPod?
Posted by: Taym

Re: iPod Classic 120: some questions - 20/11/2008 22:55

Quote:
Are you certain that it isn't a fault with your iPod?

Not 100%. I'm definitely trying other iPods to check.
But how many chances are there that I happened to listen to two different EU iPods (see above), produced in different years, differend generations, that sound equally poor to me? I tried them for quite a while, and I could not tell one from the other.

Edit:
And, see, my friend did say he was not at all impressed with sound quality, but still he never thought of returning his iPod or think it was faulty. So, it must not sound that bad to him, after all.
So maybe it's just me.
Also, I pretty much agree with sein, above. I too noticed quality decreases when increasing volume. Now, in spite of the overall low volume, I have to correct my previous statement: some tracks do produce some distortion.
Posted by: mlord

Re: iPod Classic 120: some questions - 21/11/2008 03:51

Should you decide to take a chance on the North American version of iPod: I can get them here for quite reasonable pricing at Costco (a big wholesale style mega store).

Cheers
Posted by: Taym

Re: iPod Classic 120: some questions - 21/11/2008 21:14

Mark,

That's very kind of you! I'll give that a thought! It is actually a good idea, to tell you the truth!

I am going to try a couple more things to switch to US firmware. If I fail, I may be asking you to ship me a US iPod from there! smile
Posted by: mlord

Re: iPod Classic 120: some questions - 22/11/2008 01:05

Sounds good. Costco has an incredible "no questions asked" return policy (only 90 days for iPods, though), so we could test it out and verify that it works the way you need without any risk.

Cheers

Posted by: Taym

Re: iPod Classic 120: some questions - 22/11/2008 13:29

... customer care is not even nearly as good here, in Italy (as always).

Anyway, you've got PM, Mark smile

And now, some more info, for who is interested.

I got my Zune yestreday. Here is the comparison I could not find anywhere on the internet, hoping it is useful for somebody else.

First off, volume and quality:

Again, Zune seems to confirm the "volume cap" issue. Zune's Max volume is significantly higher than my iPod's. And, now, I am comparing these devices using the very same mp3s and the very same earplugs (Sennheizer CX500 / Stock Zune Earplugs). So, EU volume cap is definitely here, and it is really bad.

Quality: Zune's is definitely higher. Better low frequencies, no distortion.

But... and here comes what is very surprising to me:
Zune's stock earplugs (these are not in-ear, and not the high quality earplugs Zune 80 used to come with) sound so good to me! I am impressed. Now, comparing them to my sennheized CX500, which are however among the best I've tested in these weeks, they are slighly lower in volume, but I like them better in terms of sound quality. Precisely, I hear much more low frequencies, and less background noise. Because, by listening to them, I realized another thing I did not like in my iPod: background noise! I did not realize it was there, until it went away. Maybe I have faulty Sennheizer earplugs, but that background noise was there also with other earplugs I tested, I believe. Definitely with iPod stock ones. Maybe it is just these Zune ones to match well with these two portable players...
Anyway, now, comparing Zune and iPod EU, difference in volume is very significant with both earplugs, but both devices sound better with Zune's stock earplugs, to me. The iPod quality in terms of low frequency is not as bad as before with these Zune earplugs.
What can I say? My ears are probably weird ones. smile We are talking of high end sennheizer earplugs with theoretically average quality Microsoft/no brand earplugs.
Also the Zune sounds a bit more lacking of low frequencies when used with sennheizer, but definitely not as much as the iPod, I guess due to the higher output power.

So, overall my opinion about this global quality/volume issue with the iPod is the following:
iPod EU have a lower volume, which is partly affecting the perceived sound quality. Sennheized earplugs contributed to reduce perceived low frequencies..

I am more and more convinced that a US iPod would sound just as good as the Zune.

Now, let me compare these two devices on all other aspects that I thing deserve to be mentioned.

1. Case: iPod case is nicer to look at and to touch. Zune's metal back does not feel so solid, and front glossy black is beautiful but plastic. Zune looks bigger, and it is, but by just a couple of mm. Zune seems lighter, but by very little. In the end, there's no big difference in terms of how easily you carry them in your pocket.

2. Management of Audiobooks is slightly more advanced in iPod. Zune requires you to tread them like normal playlists. Good enough with both, however.

3. EQ. Zune does not have it. On the other hands, I don't find iPods EQ particularly useful as it seems to lower perceived quality when applied.

4. Alarm clock/timer: i particulrly like and use them, and there's none in Zune.

5. iPod Compatible with Alpine X100. Zune is not even recognized, so I can't use it in my car at all. I do hope Alpine and MS decide to cooperate/. What a major selling point it would be for both, I believe.

6. Hold button is easier to operate in iPod

7. Display: Zune is the absolute winner here. Its display is larger, beautiful to look at, and mouch more useful due to this. Menu items are easily readable.

8. Zune's on board software seems better to me. Just as fast as it can be, it is very immediate to operate and learn. The empeg-like feature (somewhat) that allows to add songs to "currently playing" track list is so good, and I like it better than the "on the go" iPod feature. On the other hand

9. iPod's "on the go" playlist can be preserved and saved, which is great.

10. Wireless worked at first shot, very well.

11. Zune is more customizable. Custom background pictures is just a simple and great feature. Picture slideshow on such a nice display give zune a whole new dimension in terms of keeping your picture db in there.

12. iTune and Zune software. Zune wins. iTunes has both less bugs and features smile . Actually the only bugs Zune sw has consist of A. the apparently random sync activity, but I suspect there's a logic I still have to learn; B. creation of some duplicate playlist for no reason. Precisely, if you create a playlist and call it "80's", while you populate it or do other stuff, for no reason a "80's (2)" playlist appears, containing exaclty the same media as the other one. When you delete it, sometimes it reappears laugh. O well, not major, but very annoying.
Zune allows you, however, to sort Album as you wish: by year, artist, name, rating, etc, in and out of playlists. This i love, coming from the Empeg. Autoplaylists work well in both.
Zune finds many more Album art pictures. Not only that. When a match is not perfect it allows you to compare what found and what on your collection, song by song, It's just excellent.
Moreover, priceless, Zune lets you chose every option of the directory system that will be used on your hdd: where settings will be saved, where playlists, where your audio base is, where your video base is, where podcasts will end up to, etc. This is just perfect.
And, to conclude, Zune DOES monitor your media base directories to incorporate all changes.

13. What is with Zune's default crazy setting that reconversts all MP3s to a lower bitrate when syncing?? I am not sure I fully understand why and when it is done, but I am not even sure I want to know laugh . I disabled it after a first and useless full sync of 70GB!

14. Zune Sw comes in 64bit flavor. MS did a good job in updating it.

15. Zune supports a lossless format.

16. Radio audio quality in Zune is great. I guess as good as it can be on such a device. iPod's external radio is just ok.

Posted by: boxer

Re: iPod Classic 120: some questions - 23/11/2008 08:59

I take your point that you've found the same sound restriction on more than one ipod, but then,one thing still puzzles me: If those sons of fun the EU place a cap on the volume in the firmware for European sales of ipods, why do the same restrictions not apply to the Zune?
Posted by: Taym

Re: iPod Classic 120: some questions - 23/11/2008 13:04

Good point. No idea. My guesses are:
- Zune has not incorporated that restriction yet.
- I got my Zune from UK. Will such EU restriction apply there? Different countries may implement some EU regulations at different times, or not implement them at all.

The Zune I got, interestingly enough, seems to have a firmware that can be used in every country: you can chose the Radio FM frequency range amont US, EU, Japanese. Not that this means necessarily that there are no country-specific restrictions, but it supports this theory.
Posted by: tman

Re: iPod Classic 120: some questions - 23/11/2008 13:52

Originally Posted By: taym
Good point. No idea. My guesses are:
- Zune has not incorporated that restriction yet.
- I got my Zune from UK. Will such EU restriction apply there? Different countries may implement some EU regulations at different times, or not implement them at all.

Its Europe wide and the Zune will have it.
Posted by: boxer

Re: iPod Classic 120: some questions - 23/11/2008 14:06

If it's an EU initiative, edict, directive or regulation, you can be sure that we adopt it slavishly - that's our weakness.
Posted by: StigOE

Re: iPod Classic 120: some questions - 23/11/2008 15:58

Originally Posted By: tman
Originally Posted By: taym
Good point. No idea. My guesses are:
- Zune has not incorporated that restriction yet.
- I got my Zune from UK. Will such EU restriction apply there? Different countries may implement some EU regulations at different times, or not implement them at all.

Its Europe wide and the Zune will have it.

Didn't someone somewhere earlier in this thread say that it was a french demand only, but Apple didn't differentiate inside Europe so all European iPods have it?
Posted by: Taym

Re: iPod Classic 120: some questions - 23/11/2008 16:43

StigOE, yes, I did. But, I was reporting from some other forum. I do not know how accurate that can be.
Posted by: peter

Re: iPod Classic 120: some questions - 23/11/2008 17:32

Originally Posted By: StigOE
Didn't someone somewhere earlier in this thread say that it was a french demand only, but Apple didn't differentiate inside Europe so all European iPods have it?

That certainly used to be the case, yes. Only French Trekstor Vibezes have the cap.

Peter
Posted by: mlord

Re: iPod Classic 120: some questions - 23/11/2008 21:37

Mmm.. Claudio, do you you have access to somebody there with an Oscilloscope, who could measure the milliVolt output of that iPod from the earbud jack? Say, while playing one of the empeg auto-eq tones at max volume?

Then I could measure the same here, with a "Canadian" iPod, and we could see just how much they differ by.

Ditto for the Zune, I suppose.

Anyone else want to partake?

Cheers
Posted by: andy

Re: iPod Classic 120: some questions - 24/11/2008 07:48

I'd happily do it with my UK iPhone as another data point, but I don't have access to an oscilloscope. I guess it isn't possible to do it with a multimeter, right ?
Posted by: andy

Re: iPod Classic 120: some questions - 24/11/2008 08:20

Is something like this actually likely to work well enough for this task:

http://zeitnitz.de/Christian/Scope/Scope_en.html

Though I guess I'd then have the problem of calibrating the scope and I don't have a signal generator to give me a known AC voltage level.
Posted by: Taym

Re: iPod Classic 120: some questions - 24/11/2008 19:06

Mark, I do not have immediate access to an Oscilloscope, but I can look for one anyway. I should be able to, eventually. Or, I'll be happy to use the sw you andy are recommending.

Also, more info:
I compared audio output between my iPod and my gf Shuffle from a coumple of years ago. Impressive difference in volume, and, less ackground noise. The Shuffle sounds really great. And, my gf agrees with my findings. I did not tell her which player she was listening to, and actually all she knes is that one sounded louder. She added that the louder one also sounded "deeper".
Posted by: Taym

Re: iPod Classic 120: some questions - 25/11/2008 20:55

Ok, so I have now installed Soundcard Oscilloscope. What should I do now if I wanted to grab some info from the iPod? Would the Mic input socket work well enough for our purposes?
Posted by: mlord

Re: iPod Classic 120: some questions - 25/11/2008 21:14

The soundcard oscilloscope isn't really useful here -- we don't have a good way to calibrate it so that the measurements mean anything from one machine to another.

But you could use it yourself in isolation, to compare max volumes between the various players you may have in your possession.

Just play a standard tone (the various empeg auto-eq tracks are perfect for this) at max volume, and measure the level reported by the scope software.

I don't use Windows, nor that scope software, so I cannot be of much additional help here.

Oh, and YES, use the LINE-IN input if your soundcard has one. Otherwise the MIC input perhaps (assuming max volume doesn't fry it..).

Cheers
Posted by: siberia37

Re: iPod Classic 120: some questions - 25/11/2008 21:57

Would a headphone amplifier solve the issue? Something else to lug around though.
Posted by: andy

Re: iPod Classic 120: some questions - 26/11/2008 05:35

Would a test tone played on an empeg be consitent enough to do the calibration or is there likely to be too much variations between units to make that useful ?
Posted by: mlord

Re: iPod Classic 120: some questions - 26/11/2008 15:27

Mmm.. good idea, that one. I suppose it's as good a calibration signal as we're likely to have available to most people on this BBS.

It will have to be identical models (say, all Mk2a).
Posted by: tanstaafl.

Re: iPod Classic 120: some questions - 27/11/2008 04:29

Quote:
That really depicts what I am hearing. And, the volume lever is rather low, as I said before.


Probably you've BTDT, but just maybe... stumbling around in iTunes (and with help from a link shown to me by Drakino) I found this. Maybe it could help? (The screenshot is from iTunes v8.)

You get there by highlighting the file(s) you want to adjust, then going File-->Get Info-->Options. Maybe cranking that slider bar over will help.

tanstaafl.
Posted by: andy

Re: iPod Classic 120: some questions - 27/11/2008 09:37

Doing that will likely lead to clipping, which will make everything worse.
Posted by: Taym

Re: iPod Classic 120: some questions - 28/11/2008 05:34

tanstaafl,

I tried to use the "volume adjuzt" slider. That will actually not adjust the max volume of MP3s. It will simply change how the volume increases. If you move the slider all the way to the right, what will happen while listening to the iPod is that you will reach the max volume at 50% of the volume bar on the iPod itself. If on your iPod you keep "increasing" the volume beyond 50% on the volume bar, you will get no result, as you are already at max. I do not understand what the purpose of such feature would be, but that's exactly how it works.

Back to our test. I will use the empeg as a benchmark, as rightfully suggested. Unfortunately, I do not have a line input handy, as I am on a laptop and I am reluctant to fry the mic socket smile. However, if I don't find an alternative, I'll try that.
Posted by: bonzi

Re: iPod Classic 120: some questions - 28/11/2008 05:57

Originally Posted By: taym
I tried to use the "volume adjuzt" slider. That will actually not adjust the max volume of MP3s. It will simply change how the volume increases. If you move the slider all the way to the right, what will happen while listening to the iPod is that you will reach the max volume at 50% of the volume bar on the iPod itself. If on your iPod you keep "increasing" the volume beyond 50% on the volume bar, you will get no result, as you are already at max. I do not understand what the purpose of such feature would be, but that's exactly how it works.

It appears as if it was meant to increase the volume (gain?), but then on the iPod it hits the volume cap.
Posted by: Taym

Re: iPod Classic 120: some questions - 28/11/2008 22:08

Bonzi, you're right! That would make perfectly sense.

As a side note, I should have an iPod Classic 120 US version in my hands in a week from now. Hopefully by then I can make a full comparison and post the results here. I will definitely check what the "volume adjust" slider does on the US iPod Classic.

Also, i did some research on the volume cap, and it really seems it is a French, not EU, regulation. So, I guess Apple did not bothered making more than one EU firmware...
Posted by: AndrewT

Re: iPod Classic 120: some questions - 28/11/2008 23:48

Originally Posted By: taym
Also, i did some research on the volume cap, and it really seems it is a French, not EU, regulation. So, I guess Apple did not bothered making more than one EU firmware...

Reminds me of a conference call I participated in with colleagues from France, Germany and the US. We were discussing domestic courier delivery when it became clear that a couple of the US folks were treating Europe as a single country. The E in EMEA I suppose.
Posted by: Taym

Re: iPod Classic 120: some questions - 30/11/2008 16:34

smile Speaking from my perspective here in Italy, I'd be more than happy if we had one single EU post system, as any other I've seen so far is faster/less expensive than ours (speaking of the old state-run post system, of course). smile
Posted by: gbeer

Re: iPod Classic 120: some questions - 02/12/2008 01:49

Originally Posted By: taym
tanstaafl,
I do not understand what the purpose of such feature would be, but that's exactly how it works.


I suspect it's intended to let you normalize the general playback volume of specific tracks that might not have been ripped consistently.
Posted by: Taym

Re: iPod Classic 120: some questions - 09/12/2008 20:31

Ok, I have the US iPod Classic 120 in my hands.

The difference in sound volume is impressive. I took the Empeg Sirrus test Tone, In Phase, and uploaded on both the EU and the US iPod.

I then connected the earplug output to the mic input of my laptop. I started the Soundcard Oszilloscope mentioned above in this thread. I set it up as follows:
Oscilloscope Tab
Aplitude 0.3
Synch Ch 1&2
Time(Sec) 10m
Channel mode Single

Results:

EU Max V Eff: 337m both left and right channels
US Max V Eff: 463m both left and right channels

I repeated the above test for 8 times.
The difference is remarkable.

By just listening at the two iPods, the difference is just as big. I cannot bear the volume of the US iPod at full throttle, while as yuo know the EU iPod is just high.

Also, I hear more low frequencies and have a better stereo perception.

So, now I am off to upload US firmware on EU iPod. Let's what happens.
Posted by: Taym

Re: iPod Classic 120: some questions - 09/12/2008 21:05

Ok,

US iPod has 2.0.0 formware loaded. iTunes detects there's a newer version and ask what to do. I tell iTune to download but not install the newer version, and 2.0.1 is downloaded.

File name is iPod_33.2.0.1.ipsw , and it looks identical to the one I already have. So, it seems I am downloading a EU firmware even though the iPod plugged to iTune is a US one. This seems to be supported by the fact that older versions of US firmware were named iPod_24.x.y.z.ipsw . I am just guessing that the "33" means EU, while "24" means US?

As a matter of fact, I reset my EU iPod and used the newly downloaded firmware on it, and my EU iPod sounds just like before.

So, I think there are two possible explanations:

1. iTunes download EU firmware no matter what iPod is connected to it, possibly based on IP addrress. So, I can't update my US firmware or I'' turn it into a EU, volume-capped iPod.

2. the "33" and "24" are not related to regions. Simply, EU iPods are hardware volume-capped, and US iPods are not. So, I can update my US iPod and still it will sound better.

Now, I don't want to test 2 just to be stuck to a poor-sounding iPod again.

If 1 is true, I guess a need a way to fool iTunes and make it believe I am in the US.

This is so frustrating. Why, Apple, oh why?
Posted by: mlord

Re: iPod Classic 120: some questions - 09/12/2008 21:21

Mmm.. if you had the firmware file in hand, could it be installed on the iPod without the computer connected to the internet?

If so, then perhaps somebody over this way might be able to acquire the file and send it your way.

Just an idea .. not me though, iTunes doesn't run (well) on Linux.

Cheers
Posted by: Taym

Re: iPod Classic 120: some questions - 09/12/2008 21:31

Mark,

Yes, I could. Even with the computer connected to the internet, you can tell iTunes to install "current firmware version", meaning that it will use the firmware file saved in a dir locally.

Yes, if anybody over there could send me the firmware file, it would be great. It needs to be for iPod Classic 120, which is a different firmware than iPod Classic 80. Also, I'd be curious to find out if it is named "24"...
Posted by: andy

Re: iPod Classic 120: some questions - 10/12/2008 05:02

Originally Posted By: taym

Oscilloscope Tab
Aplitude 0.3
Synch Ch 1&2
Time(Sec) 10m
Channel mode Single

Results:

EU Max V Eff: 337m both left and right channels
US Max V Eff: 463m both left and right channels

If you get a chance could you also do the same with your empeg, with the volume set to 0dB.

Edit: and obviously make sure that Hijack volume adjust is off.
Posted by: bonzi

Re: iPod Classic 120: some questions - 10/12/2008 05:06

Originally Posted By: taym
US iPod has 2.0.0 formware loaded. iTunes detects there's a newer version and ask what to do. I tell iTune to download but not install the newer version, and 2.0.1 is downloaded.

Interesting, my EU Classic 160 is still on 1.1.2, and iTunes says it is the most recent version. So, the new Classic 120 seems to be a slightly different beast than "old" 80/160 ones. Did you notice any other differences in functionality (apart from the topic of your quest)?

BTW, iTunes uses IP to determine which local version of the shop it will let you in, so I suppose that the situation with the firmware is similar. I wonder are there some kind of public proxies that could be a way around this kind of problems.
Posted by: andy

Re: iPod Classic 120: some questions - 10/12/2008 05:27

Originally Posted By: bonzi

BTW, iTunes uses IP to determine which local version of the shop it will let you in, so I suppose that the situation with the firmware is similar. I wonder are there some kind of public proxies that could be a way around this kind of problems.

Yes, you can use TOR + Privoxy to appear to come from a US IP address.
Posted by: tman

Re: iPod Classic 120: some questions - 10/12/2008 15:41

Originally Posted By: taym
File name is iPod_33.2.0.1.ipsw , and it looks identical to the one I already have.

All iPods including touch/iPhone have the same firmware for all regions.

Originally Posted By: taym
I am just guessing that the "33" means EU, while "24" means US?

No. iPod model.

Originally Posted By: taym
So, I think there are two possible explanations:

Neither. There is a part of flash that is never erased. It stores the serial number and region etc...
Posted by: mlord

Re: iPod Classic 120: some questions - 10/12/2008 16:00

Mmm.. I wonder if Jon and the other Linux-on-iPod folks have already found/fixed that little nit in flash..
Posted by: tman

Re: iPod Classic 120: some questions - 10/12/2008 16:21

The proper hacks for the older iPods actually changed the firmware to remove this limit. The new classic however has encrypted firmware which last time I checked hadn't been broken yet.
Posted by: Taym

Re: iPod Classic 120: some questions - 10/12/2008 17:08

Originally Posted By: tman
All iPods including touch/iPhone have the same firmware for all regions.
[...]
There is a part of flash that is never erased. It stores the serial number and region etc...

Tman, thank you! So, you are saying that the volume-cap setting is stored as well in the flash memory part that is never erased. So, can I go ahead and update my US iPod safely to 2.0.1 without risking I colume-cap that as well?