up to compression ratios of about 10:1. However, nearly all available
sample-rate / bitrate combinations perform filtering near Nyquist. For
example, using fs = 48 kHz in the .wav file header results in the upper
third of the spectrum filtered out. Other choices for sampling rate
(32, 44.1, 16, 24, 22.05, 12, 11.025) also filter near Nyquist. The only
sampling rate which does not filter is fs = 8 kHz.
Is there a parameter setting I can use to completely turn
off filtering
for all sampling rates? The actual command I used
was
lame --resample 48 -mm -b64 --noath --notemp -k temp.wav temp.mp3
so I am trying to turn off all psychoacoustic processing.
Even with the
-k option (disables all filters), I still get low-pass
filtering. Any solutions?
Thanks,
Joe
