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Why are 128kbit/s MP3s usually 44,100 Hz?
eamon123
post Oct 14 2012, 01:44
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Since 128kbit/s MP3s usually has a low-pass filter at 16,000 Hz, and the Nyquist-Shannon theorem states that all frequencies under f/2 Hz can be totally described at an f Hz sampling rate, why not encode at 32,000 Hz? Wouldn't it save more space?
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halb27
post Oct 18 2012, 16:55
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Sure you can't get 16 kHz bandwidth, but something like 15 kHz or a little bit more if you don't want to run into audible artifact issues due to resampling.
Not a big differerence however but a valid point.

This post has been edited by halb27: Oct 18 2012, 16:55


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