[vorbis-dev] Stereo mode settings
Segher Boessenkool
segher at kernel.crashing.org
Mon Feb 16 04:51:07 PST 2004
>>> You could test this effect on monoaural files.
>>> The "HF boost" will still be present.
>>> It's because of heavy quantization. The SNR is *so*
>>> low at high frequencies in low bitrate modes, that the
>>> quantization error increases energy noticably.
>>
>> Ooh, if *this* causes that "HF boost" problem, I know how
>> to fix it (I fixed it for Lame a few years ago ;-) )
Well it was not exactly what I thought. So I started investigating
other "suspicious" things.
> BTW: Apologies for that (small) attachmet.
> I've no place to put it on the web anywhere.
No problems with that...
<p>That picture looks _really_ strange. I'll investigate some more...
Could you make a picture with logarithmic frequency scale, too, please?
Mail me privately if you think it clobbers the list...
<p>Segher
--- >8 ----
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