7 May
2005
7 May
'05
11:27 a.m.
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 ?
--markc
7 May
7 May
1:45 p.m.
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.
6:47 p.m.
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.
Don't use the alsa sample rate converter. It has serious problems.
Another poster mentioned that Rivendell now uses libsamplerate.
Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo nospam(a)mega-nerd.com (Yes it's valid)
+-----------------------------------------------------------+
"The music business is a cruel and shallow money trench, a long
plastic hallway where thieves and pimps run free, and good men
die like dogs. There's also a negative side."
-- Hunter S. Thompson
8:23 p.m.
On 8 May 2005 at 1:27, Mark Constable <markc(a)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. Ardour does very good sample rate conversion.
Upon import you'll have an ardour project at 48000. Drag and drop
the imported waveform onto a channel in the editor window, then
select that track and export the selection as a wav file. That
should do it. Find out more on ardour-users. Cheers....
--
Kevin
8:44 p.m.
Kevin Cosgrove wrote:
On 8 May 2005 at 1:27, Mark Constable <markc(a)renta.net> wrote:
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 :-).
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. Ardour does very good sample rate conversion.
I'm pretty sure Ardour uses libsamplerate.
Erik
--
+-----------------------------------------------------------+
Erik de Castro Lopo nospam(a)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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4 comments
4 participants
participants (4)
-
Dan Mills -
Erik de Castro Lopo -
Kevin Cosgrove -
Mark Constable