On Tue, 12 Oct 1999, Francois du Toit wrote:
> what do you mean by SFB 21 cutoff?
FhG (and lame) don't encode high frequency (16KHz+?) information when
encoding at lower bitrates. The improves inteligilbility at lower
bitrates, at the price of that high frequency data. You can disable this
feature in lame with -k (I think).
Blade doesn't do this (it's not in the ISO sources) but blade's author
makes it sound like FhG does this at the bitrates blade is claimed to work
well with (192Kb/s+), which the iis encoder doesn't.
If you are aiming for better syntethic tests (freq responce;distortion)
with lame the actually good sound you might want to try:
lame -ms -b bitrate -k -X2 in.wav out.mp3
This will probably produce better synthetic results (because of -X2 quant
selection) but worse perceptual results.
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