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PulseAudio
PulseAudio
Posted Aug 4, 2007 9:50 UTC (Sat) by wolfgang.oertl (subscriber, #7418)In reply to: Still a long way to go by drag
Parent article: An Introduction to Linux Audio (O'Reilly)
I have looked at PulseAudio recently, did almost all of the "perfect setup" described on the pulseaudio.org wiki. Works nicely, but it has a high CPU overhead on my system - while doing nothing (well, a few % of CPU) but even more when playing back audio.
This inefficiency needs to be fixed before it can be a standard, especially in the light of all the power saving efforts currently under way.
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PulseAudio
Posted Aug 4, 2007 20:46 UTC (Sat) by drag (subscriber, #31333) [Link]
It's configurable how much cpu time you want to allow it to use.
The lower the latency and the tighter your audio requirements the more cpu time your going to use. If you loosen things up it will use much less cpu time.
From the /usr/share/doc/pulseaudio/README.Debian on my system:
> PLEASE NOTE: PulseAudio's default configuration uses high quality sample rate conversion that may be overly CPU intensive. If PulseAudio's CPU usage is unacceptable on your hardware, please change the resample-method option in /etc/pulse/daemon.conf to either src-linear or trivial. See daemon.conf for more details.