[opus] High Sampling Rates

Andrew Lentvorski bsder at allcaps.org
Fri Jun 6 23:35:06 PDT 2014

That article is a bit too dismissive.  I agree that one cannot hear the
difference between 48KHz/16bit and 192KHz/24bit if you just transfer the
data directly to the audio output device.  As such, there is no good
reason for Opus to support higher than 48KHz (especially since this is
lossy compression, anyway).

However, in general, that's not all you do with audio data.

192KHz is useful for the same reason that 24 bits is useful.  Digital
operations often need the extra margin for many of the operations being
carried out (IIR-type effects, mixing multiple sources, etc.)  This is
especially true for the so-called "wet" effects that tend to mangle
phase vs frequency (vs "dry" effects which tend to only affect amplitude
vs frequency).


On 6/6/14, 11:03 AM, Gregory Maxwell wrote:
> On Sat, Feb 22, 2014 at 8:32 AM, Webdrifter <onzemeelbox at gmail.com> wrote:
>> Hello,
>> I'm an audiphile.
>> Will opus ever be developed to work with sampling rates higher than 48kHz? (I hope so)
> http://people.xiph.org/~xiphmont/demo/neil-young.html
> _______________________________________________
> opus mailing list
> opus at xiph.org
> http://lists.xiph.org/mailman/listinfo/opus

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