[linux-audio-user] 44100 -> 48000

Erik de Castro Lopo erikd-lad at mega-nerd.com
Sat May 7 20:44:12 EDT 2005

Kevin Cosgrove wrote:

> On 8 May 2005 at 1:27, Mark Constable <markc at renta.net> wrote:
> >  Rivendell radio automation software, alsa and jack, darkice with
> >  jack support, peercast. All on one machine. Wav files in rivendell
> >  are in 44100 format. Rivendell plays songs and outputs to jack,
> >  jack is connected to audio outs (can be disconnected if this will
> >  help) and to darkice. Darkice encodes as ogg and sends to peercast.
> >  Bam! Streaming radio station in a box. Problem, my sound card is an
> >  nForce2 which it seems only operates at 48000 and the combination
> >  I am trying does not seem to be happy with this. Converting sample
> >  rates by alsa on input would seem to be one solution to my problem.
> > 
> > Would anyone have an actual example of the best way to deal with
> > this particular situation ?
> I think you can use ardour.  Create a new project at 48000 and import 
> your 44100 wav file. 

Yes, but that won't help, because this Rivendell is a radio production
suite and they sample rate conversion needs to be done in real time.
Saving the audio, loading it into another app, resaving it and reloading
it in the original app isn't really realitme :-).

> Ardour does very good sample rate conversion.  

I'm pretty sure Ardour uses libsamplerate.

  Erik de Castro Lopo  nospam at mega-nerd.com (Yes it's valid)
I'd rather not work with people who aren't careful. It's darwinism in
software development.
	Linus Torvalds on the linux-kernel list

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