[IDEA] Routing without CamillaDSP

[0815Genie]

Hi there,

first of all, thanks to all of you who develop in your spare time - you made my day!

From time to time I help out at gatherings with my digital Allen&Heath QU16. Remote control by WIFI is a basic functionality that enables me to place the desk anywhere backstage. The only problem is that audio playback was fixed to a cable. That changed now! moOde made it! Now I want to playback remotely with highest quality as I plugged the desk via USB to the raspberry.

Now I have 22 playback channels of which the stereo channels are 16/17 (18/19 and 20/21). So guess, as the playback worked out of the box I wanted to play back on the stereo channels. CamillaDSP configured with this tutorial moOde + CamillaDSP + multichannel output
It eventually works. Only pitty, one core of the CPU permanently works with 80% load (Raspberry Pi 3b with 32 bit OS). Nevertheless playback seems stable so far - critical for performances (thats why bluetooth is no option for me)!
New raspberry has only a small performance gain I assume.


As I really don't need CamillaDSP to process 16 empty channels (Optimization in CamillaDSP would do the job already) I thought if there was an other option to specify alsa what channels to use.

Any ideas? Thanks in advance.

[bitlab]

See in article https://bootlin.com/blog/audio-multi-cha...g-alsalib/ the part about audio outputs.

[0815Genie]

See in article https://bootlin.com/blog/audio-multi-cha...g-alsalib/ the part about audio outputs.

Handy! Thanks for the quick response. That should do the job. I'll try for sure!

[Tim Curtis]

Regarding "New raspberry has only a small performance gain I assume."

3B+ or 4B with 64b will be a significant improvement over 3B 32b