[LAU] Lossy audio to lossless format

[Egor Sanin]

On 10/1/14, Tim Goetze <tim at quitte.de> wrote:
> The lowpass/antialiasing filters used for most audio productions
> usually operate very close to the Nyquist limit.  Those employed in
> lossy audio data compression often (but not always) are set to a lower
> cutoff frequency.  On a spectrogram, their effect is visible as a
> total absence of energy above, say, 20kHz or lower.

Thanks, Tim,  I'll do some investigation.