this post was submitted on 11 Apr 2024
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Happens all the time on Linux. The current instance would be the shift from X11 to Wayland.
The first thing I noticed was when the audio system switched from OSS to ALSA.
And then from ALSA to PulseAudio haha
They're at different layers of the audio stack though so not really replacing.
And then ALSA to all those barely functional audio daemons to PulseAudio, and then again to PipeWire. That sure one took a few tries to figure out right.
And the strangest thing about that is that neither PulseAudio nor Pipewire are replacing anything. ALSA and PulseAudio are still there while I handle my audio through Pipewire.
How is PulseAudio still there? I mean, sure the protocol is still there, but it’s handled by
pipewire-pulse
on most systems nowadays ~~(KDE specifically requires PipeWire)~~.Also, PulseAudio was never designed to replace ALSA, it’s sitting on top of ALSA to abstract some complexity from the programs, that would arise if they were to use ALSA directly.
Pulse itself is not there but its functionality is (and they even preserved its interface and pactl). PipeWire is a superset of audio features from Pulse and Jack combined with video.
For anyone wondering: Alsa does sound card detection and basic IO at the kernel level, Pulse takes ALSA devices and does audio mixing at the user/system level. Pipe does what Pulse does but more and even includes video devices