[CM] Resampling in SND

Kjetil S. Matheussen k.s.matheussen@notam02.no
Wed, 23 May 2007 04:23:10 +0200 (CEST)


Are you sure its possible to hear any difference? I don't know, but they 
both use the sinc algorithm, and a short benchmarks I did two years ago 
showed that snd's resampler using a low src-width use a lot less cpu than 
libsamplerate.



On Tue, 22 May 2007, Juan Pampin wrote:

> Hi Bill,
> I was wondering how hard would it be to add support in snd to use
> libsamplerate (or secret rabbit code: http://www.mega-nerd.com/SRC/) I
> have been using this library for high-quality sampling rate conversion
> with very good results (I guess it's what programs like Ardour and
> Audacity use too).
> Best,
> JUAN
>
> On 5/22/07, Bill Schottstaedt <bil@ccrma.stanford.edu> wrote:
>> >  It is never stated what the first case ('num') is supposed to
>> >  represent.
>>
>>  Hunh?? The very next sentences are:
>>
>>  "A value greater than 1.0 causes the sound to be transposed up.
>>  A value less than 0.0 causes the sound to be reversed."
>>
>>  I'll add another example,
>>  but there are dozens scattered around the *.scm files, and
>>  in the src-channel documentation directly above src-sound.
>>
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