[PlanetCCRMA] Sox

[Fernando Lopez-Lezcano]

On Sat, 2007-01-13 at 07:36 +0100, Martin Tarenskeen wrote:
> Hi,
> 
> I'm not sure my question is on-topic, but it sure is about audio. There is 
> a lot of beautiful audio and midi software in the ccrma and fedora repos, 
> but my favorite one is ugly duckling Sox, the commandline audio conversion 
> tool.
> 
> Today I was playing with the "stretch" effect, but was getting bad sound 
> results. Is Sox' time-stretching algorithm of bad quality, is this a known 
> bug, or am i doing something wrong? 

Most probably a "feature" (meaning it is not using a high quality
algorithm). 

> I'm using the latest version of sox 
> on Fedora FC5. ( btw. using Audacity, I'm getting perfect results with 
> time stretching ).

For sample rate conversion I'd recommend sndfile-resample (part of
libsamplerate), for stretching I've heard good things about soundtouch -
it includes an example program named soundstretch. 

-- Fernando