Glen Pike wrote:

> At the end of the day, you still have to decode MP3's into WAV type
> audio to play it back.

Yes. And the codec will interpolate to reconstruct the audio it squeezed out
in the lossy compression process. At a high bit rate, with high-quality
source, this can be quite accurate--good enough even for a symphony musician
like me with top-of-the-line playback equipment.

> The codec will output 11, 22, 44 etc. based on
> the audio sample rate the file was encoded with...

Ok, that's the part I was missing. The mp3 file must store information about
the original sample rate. I wonder what it does when it's compressing
another mp3? Does it read the original sample rate, which could be several
generations old?

Cordially,

Kerry Thompson

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