Too bad. Using PA is convenient, as it's already integrated into most
distros. And I am apparently misinterpreting the PA claim "Good low
latency behaviour" -- but I guess that this depending on the definition
of low latency...
Dedicated box means that this PC is a prototype for some real-world HW
DSP device which the software will later be moved to. Working on a linux
application clearly helps development, debugging and observability.
Perhaps it's best to approach ALSA directly for the lowest latency. Have
I understood it correctly that PA emulates ALSA, so I need to disable PA
for that particular sound device before I can access it directly?
You can reach 40ms of latency by inserting your filter in the PulseAudio
real-time threads. You can look at loopback and virtual sinks/sources
for examples.
-Pierre
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