Create a "Test Audio" playlist using WAV files from your favorite PC application. I can generate tones, white/pink noise, frequency sweeps, whatever I need with either CoolEdit or SpectraLab.

Remember that the 2.0 software will play full WAV files, so you don't need to encode the tones into MP3 format. WAV doesn't have any lossy compression like MP3 does.
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Tony Fabris