[SOLVED] Set recording sample rate in gnome-sound-recorder?

MrCode · 03-14-2010, 07:29 PM

Is there any way of changing the recording sample rate in the GNOME sound recorder? It's set at 22050Hz, and I'd like to record at 44100Hz. I can't find anything in the GUI to set preferences, and I can't find a text configuration file to edit, either.

I've tried rec and arecord, but they both give a similar message:

Code:

mrcode@linuxbox:~$ arecord -f cd -t wav out.wav
ALSA lib pcm_dmix.c:947:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
arecord: main:590: audio open error: Invalid argument

Code:

mrcode@linuxbox:~$ rec -t wav -r 44100 -c 2 out.wav
ALSA lib pcm_dmix.c:947:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
rec formats: can't open input  `default': cannot open audio device

Here's my .asoundrc, if that helps:

Code:

pcm.!default {
        type plug
        slave.pcm "dmix"
}

I made it this way so that I wouldn't get audio lag in programs, but it also means I can't play audio in more than one application at a time, apparently (with some odd exceptions). I just got it from a thread in the Ubuntu forums, and it's worked fine for me so far.

I'm really clueless here, as I've never had to fiddle around much with audio settings (let alone ALSA) before. I'm guessing I have to add something to .asoundrc, but I have no idea what...

smoker · 03-15-2010, 10:29 AM

Code:

arecord -d 10 -f cd -t wav -D copy foobar.wav
              will  record  foobar.wav  as  a 10-second, CD-quality wave file,
              using the PCM "copy" (which  might  be  defined  in  the  user’s
              .asoundrc file as:
              pcm.copy {
                type plug
                slave {
                  pcm hw
                }
                route_policy copy
              }

man arecord

Also, if you have gconf-editor installed, you can change the sample rate of gnome-sound-recorder there.

It's under apps > gnome sound recorder
double click the sample rate line to change it.

MrCode · 03-15-2010, 05:53 PM

Thanks for the info! I didn't try the lines in the man page because I was afraid it would trash my sound setup, but all I did was append it to the end of my .asoundrc and arecord works great!

(great, now I feel dumb because I didn't use the info from the man page the way I was supposed to )