after several years I have to switch my audio interface because newer mainboards don't have pci slots anymore
As slot soundcards aren't very common at the moment, I ordered an Arturia Minifuse class compliant usb interface.
So far I can say it works out of the box on my Debian 11 system, just as information for people who want to get one for linux.
However I came across the buffer size settings in my DAW (Bitwig) and it seems that for a given buffer size the audio latency is different from the old pci card. The automatic Bitwig settings are samplerate 48 khz and 1024 samples buffer size.
For the M-Audio card this results in an audio latency of 1024 samples, but for the Arturia usb sound card it results in an audio latency of 1536 samples. How can this offset of more than 500 samples occur? In my opinion it should be 1024 samples like in the M-Audio device not 1536 samples. So I would need a smaller buffer size to achieve the same audio offset?
I didn't find any explanation in the Arturias manual but somehow it doesn't seems logical to me that when using 1024 sample I get an offset of 1536.
I'm using the pipewire sound server as its the standard now for debian and tested both cards with pipewire. Do I have to change something in the pipewire oder Alsa settings, which is different for USB cards?
These are the settings for the M-Audio Audiophile 192
Hope someone can give me an advice