[linux-audio-user] 44100 -> 48000

Dan Mills dmills at spamblock.demon.co.uk
Sat May 7 13:45:06 EDT 2005


On Saturday 07 May 2005 16:27, Mark Constable 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 ?

No direct experience, but CVS Rivendell (as of a few days back) supports 
sample rate conversion on the fly (courtesy of libsamplerate), so you should 
be able to just run everything at 48K and let Rivendell handle converting the 
44.1K files at playout time.

Of course this requires that Darkice is happy at 48K which I am not sure 
about.

Regards, Dan. 



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