Quote:
Originally Posted by tebasuna51
I think is better use LC-AAC than upsample if the original is 11KHz:
- LC is more compatible
- The SBR part in the upsampled HE-AAC 22KHz is artificial
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You can start SBR far below half the Nyquist frequency, so not artificial at all. In fact any encoder will do this, because starting SBR at half Nyquist doesn't bring very much quality gain (and of course if you upsample by 2 before encoding it brings nothing
).