using arecord to record from USB Audio Capture device

rmcellig · 06-30-2016, 11:55 AM

I have been using the arecord command to record my radio shows etc... It works great!! I'm using Lubuntu 14.04 on a Dell 1520 laptop

I am now using an Edirol UA3 USB device. It's not working for me when I use arecord. It keeps recording using the internal mic on my laptop instead of the Line In connected through my USB device. Is there something I need to change in arecord to make this to work?

This iswhat i have been using in my crontab:

Code:

38 12 * * 4   /usr/bin/arecord -t wav   -f cd -d 30 $HOME/fridaytest.wav

I know there is a -D option for arecord that I can use but am not sure what the proper syntax should be.

Thanks!!

AwesomeMachine · 06-30-2016, 01:20 PM

Open alsamixer to see all your devices and test them.

Shadow_7 · 07-02-2016, 05:45 PM

$ cat /proc/asound/cards

It will list the index number for your card(s). 0 is the default unless you override it. As in -D hw:0. Use -D hw:1 or whatever index value makes sense. And you can also override the default in the .asoundrc file.

FILE: ~/.asoundrc

Code:

defaults.ctl.card 2
defaults.pcm.card 2
defaults.pcm.device 0

Where 2 is the index of the card you wish to be default. A little more obscure way is the re-index the sound modules when they load at boot with /etc/modprobe.d/alsa_custom.conf type stuff to make your preferred one index 0. And probably a few other tricks.