[pulseaudio-tickets] [Bug 84585] Issue of CPU usage with HiFiBerry driver snd_soc_hifiberry_amp with Debian Wheezy kernel 3.12.28

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Oct 23 12:47:26 PDT 2014


https://bugs.freedesktop.org/show_bug.cgi?id=84585

--- Comment #97 from Alessandro Ferri <alessandroferri_015 at fastwebnet.it> ---
(In reply to Raymond from comment #95)
> you need to use 44100Hz wav file to test the period size 441
> 
> your aplay result indicate the your sound card cannot select exactly 10 ms
> period time since your driver seem have a constraints which limit the period
> size must be multiple of eight
> 
> 
> this mean you won't get the default 25ms fragment time 
> 
> 
> 
>  the proposed default 5ms seem unlikely to work when your hwptr can remained
> unchanged for more than 9ms

I thank you for telling me to remove the leading semicolon. I want to do again
the test, how I should set up the following parameters in
/etc/pulse/daemon.conf:

default-fragments = ?
default-fragment-size-msec = 80 ?

and also possibly others. 
I will send you another aplay test with 44100Hz wav file.

Regards.

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