Ask questions to Audio insider Sir Terrence

[Sir Terrence]

Originally Posted by dialog_gvf

But, it isn't ONE wave, it's a mix of N different simultaneous sine waves.

Consider this:

1 (48Khz): 10000 0 10000 0 10000 0 10000 0 ... (pure 24Khz tone)

2: (98 Khz): 10000 1000 0 2000 10000 3000 0 4000 10000 5000 0 6000 10000 7000 0 ...

Contrived, of course, but it illustrates that information can be lost.

Gary

I am not so sure I would cry if there were losses at 24khz. My dog probably would though

Greg, wouldn't a 24khz pure tone hit the anti-aliasing filter at about 24khz with a 48khz sample rate? It would have to in order to satisfy the Nyquist/shannon theory. And wouldn't the signal be highly distorted if the filters didn't kick in at 23.050khz? If you recorded in 96khz, and downsampled to 48khz, you still wouldn't get any losses, because again, you wouldn't hear the untruncated data anyway.(that is the frequencies from 24khz to 48khz)

I think you mean 96khz instead of 98khz.