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Raspberry Pi 5 hardware for music server

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Awesome Donkey:
You select the ALSA inputs that are direct like the hw: and front: outputs on the Pi you're planning on using.

geoff2802:

--- Quote from: Awesome Donkey on March 18, 2024, 07:01:18 pm ---You select the ALSA inputs that are direct like the hw: and front: outputs on the Pi you're planning on using.

--- End quote ---

I installed Debian 12 and MC32 on a Pi 4.  Attached a hard drive with some multi-channel flac files.  Built library.  All good. 
The default audio driver uses ALSA with Pulse, which always sent 2 channels to the AV processor.
 I chose another audio device that uses ALSA but not Pulse, as suggested.  Now it outputs the same number of channels as the source content.  With 6 channel FLAC source I now get 6 channel PCM out.  All good. Will do some listening. 

Awesome Donkey:
Indeed, if you use the Pulse output, it goes through the system mixer. Choosing one of the hw: or front: outputs it's direct, bypassing the system mixer. Sounds like it's going well so far, happy listening! :)

geoff2802:
I've tried the direct audio output choices and I get an error in MC when trying to play content.  I tried playing both 6-channel and 2-channel content. 

My MC settings are:
- All boxes unchecked in DSP Studio.
- Volume Disabled.
- PCM Output Format: Auto.

Attachments show selected output and the MC error that is shown when I initiate playback.

I've set my AV Processor to its Direct mode. 

Any idea whether the error is arising from a limitation in the Pi 4 hardware, HDMI cable or my AV processor?  Appreciate any help.

---
BTW, when I select an audio output device that apparently use the mixer (ie *not* one of the hw: or front: ones), I do get audio playback but the channel mappings are wrong eg dialogue comes from the left surround channel instead of the front channels.  I can post photos if that would help.   

geoff2802:

Attached is the list of all available audio output devices in MC. 

When changing between these, I stopped and restarted playback. 

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