[pulseaudio-discuss] PulseAudio Painfully Slow

[Jan Alexander Steffens]

Am 14.07.2014 17:59 schrieb "Laurențiu Nicola" <lnicola at dend.ro>:
>
> While I agree, I think it's only fair to say that both Windows and
> PulseAudio avoid the resampling if the source sample rate is the same as
> the configured one. In my distribution (Arch), /etc/pulse/daemon.conf
> has
>
> ; default-sample-rate = 44100
>
> which means it's the default. Many audio sources are 44.1 kHz, so they
> don't need resampling. It might be interesting to see what sample rate
> your the slow apps use and whether Pulse isn't configured to use 48000
> or something else.
>
> Using pure ALSA I've had some issues with ALSA preferring to open the
> device and 48000, but I'm not sure whether this applies to PulseAudio or
> not.

If the device does not support 44.1kHz but only 48kHz (and many cheap
integrated ones don't) then PA will still have to resample.
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