[linux-audio-user] How to resample from 44.1 to 48 kHz?

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On Fri, 2004-12-10 at 16:14, Erik de Castro Lopo wrote:
> On Sat, 11 Dec 2004 07:37:15 +0800
> Timo Sivula <timo.sivula@xxxxxxxxxx> wrote:
> 
> > Hi,
> > 
> > I have an onboard VT8235 soundcard that only supports 48 kHz sampling
> > rate. I would like to play 44.1 kHz stufff on it and have it look like a
> > 44.1 kHz device to jack. Is there a way to do this using .asoundrc? 
> 
> I hope someone will correct me if I am wrong, but it is my understanding 
> that the resampler in ALSA does not work very well and cannot be made
> to work well.

Currently it is using just linear interpolation resampling (cheap in
terms of cpu needed and simple, but does not sound very good). It can be
fixed, but nobody has coded a replacement or alternative yet.
Libsamplerate would be a nice one to incorporate.....

-- Fernando



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