How to check "loopback" stream properties (if float 32bit)?
i've set up an ALSA snd_aloop device as default (via .asoundrc) to act as a general "input" for my custom audio graph in Carla. I've checked with pw-mon what happens if i connect the Loopback node to a DSP in Carla (as seen on the screenshot). There are several entries showing alsa.resolution_bits = "16".
Does this mean the loopback devices runs as 16bit only? I hoped for a 32bit connection between Wine/Winamp and Carla.
My audio source (Wine/Winamp) shows 24bit audio output and as far as i know snd_aloop should be 32bit capable.
I'm not sure if pw-mon is suitable at all to verify that though. Is there an easier way to check the stream? The pw-mon log is very crowded.
Edit: When i check ALSA procfs i get this:
$ cat /proc/asound/Loopback/pcm0p/sub0/hw_params access: MMAP_INTERLEAVED format: S32_LE subformat: STD channels: 2 rate: 48000 (48000/1) period_size: 1024 buffer_size: 262144
The pw-mon log was started when connecting the 'loopback' pin to the 'dsp'.