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David Nebenzahl David Nebenzahl is offline
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Default Upsampling audio

On 7/29/2010 8:29 PM Industrial One spake thus:

Is there any application that can convert songs with a really low
sample rate (8 khz) to 44.1 by extrapolating/cloning lower bands into
the missing higher frequency shelf?


Can't work. (More properly, I should say that it can't yield any better
result than the original 8kHz recording.)

Think digital pictures. Think of a little thumbnail, say 150 x 250
pixels that you resize to 1500 x 2500 pixels. It'll be bigger, but won't
look any better than the little original. Basically the same thing you'd
be doing with the audio file.


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