Jump to content

Orange Pi and USB Sound Card


Recommended Posts

Hi all. In this topic I will show, how to make work USB sound card with  Orange Pi. I did not found similar information, so I decided to put this info into a forum.

 

At the moment, I have working mocp from root user, which able to play mp3 and online radio.

 

I am not sure if all steps are necessary. So if You know a shorter version of this, please post a reply.

 

Lets begin.

 

1. Insert USB sound card, Boot Orange Pi, and login via SSH.

Цитата

 

mocp output:

Running the server...
Trying JACK...
Trying ALSA...
Trying OSS...

FATAL_ERROR: No valid sound driver!


FATAL_ERROR: Server exited!

 


alsamixer not work without arguments ( It may print something like: cannot open mixer: No such file or directory ). But this works: alsamixer -c 1

 

2. I am not sure if this step is necessary, but I installed
apt install pulseaudio ( https://wiki.debian.org/PulseAudio )

 

3. amixer able to find usb sound card

 

4. lsmod | grep snd_usb_audio ( just making sure that snd_usb_audio is loaded )

 

5. We need to add our user ( root and other if You want ) to audio group

usermod -a -G audio root

 

 

6. Setting the default device

 

https://www.alsa-project.org/wiki/Setting_the_default_device

Цитата

 

Find your desired card with:

   cat /proc/asound/cards

and then create /etc/asound.conf with following:

   defaults.pcm.card 1
   defaults.ctl.card 1

Replace "1" with number of your card determined above.

 

and reboot the system. Then login again via SSH.

 

 

7. Type in console

modprobe snd-pcm-oss


Then add to  /etc/modules ( from new line ) snd-pcm-oss
or to /etc/rc.local

modprobe snd-pcm-oss


8. At this moment You should have /dev/dsp or /dev/dsp1
You can type

ln -s /dev/dsp1 /dev/dsp

 

to make available sound card for cmus
 ( otherwise cmus answer with error: opening audio device: No such device  ) You can also, if You want, add to /etc/rc.local ln -s /dev/dsp1 /dev/dsp
by doing this, it will add a link from /dev/dsp1 to /dev/dsp during boot process

At this moment, your mocp should play.

 

9. Next step is copy config from /usr/share/doc/moc/examples/config.example
to ~./.moc/config
and then edit this file to this proposed setting:

Цитата

OSSDevice = /dev/dsp1 ( or whatever it is, it can be also a /dev/dsp )
InputBuffer = 1024
OutputBuffer = 1024
Prebuffering = 170

 

Save and close the file.

 

Now you can run mocp and play some file or radio.
Also, from this moment alsamixer works without arguments.

 

Link to comment
Share on other sites

This thread is quite old. Please consider starting a new thread rather than reviving this one.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...

Important Information

Terms of Use - Privacy Policy - Guidelines