I have been downloading audiobooks from my library system and listening to them on a Karma and an iPod. The sound quality is, uhhhh, less than desirable. This is not surprising when you consider that the original files are 32KBPS WMA files, transcoded to MP3s. The sound quality problems are the all too familiar "echo in a tin can" sound at the higher frequencies, particularly with a female narrator.

Is there software that will crudely and quickly equalize a batch of MP3 files, just stripping out everything above, oh, say, 3000 Hz? I am not looking to achieve authentic or natural sound, or even sound that would be considered good. If I could reach the status of "not annoying" that would be fine. FWIW, setting the iPod's minimal EQ characteristics to "Treble Reducer" helped. But not enough.

tanstaafl.