04-11-2021, 05:41 AM
It looks like the limit is compiled into the the loopback driver, but can be changed at compile time.
https://alsa-user.narkive.com/ZeBRKkwU/a...-in-384khz
However, as the higher sample rate probably isn't needed by the loopback device in this case (visualisation), it might be possible to use a custom ALSA configuration file to change the sample rate after the duplication at "multi" and before the audio is passed to the loopback device (I am not sure why plughw doesn't do this) using a "rate" or "plug" plugin.
https://www.alsa-project.org/alsa-doc/al...ugins.html
Adrian.
https://alsa-user.narkive.com/ZeBRKkwU/a...-in-384khz
However, as the higher sample rate probably isn't needed by the loopback device in this case (visualisation), it might be possible to use a custom ALSA configuration file to change the sample rate after the duplication at "multi" and before the audio is passed to the loopback device (I am not sure why plughw doesn't do this) using a "rate" or "plug" plugin.
https://www.alsa-project.org/alsa-doc/al...ugins.html
Adrian.