[pulseaudio-discuss] Pulseaudio on the XO

Simon Schamijer simon at schampijer.de
Tue Jul 24 23:38:28 PDT 2007

Lennart Poettering wrote:
> On Mon, 23.07.07 15:07, Simon Schamijer (simon at schampijer.de) wrote:
>> Hi,
>> I have put up a site where I posted my tests on using pulseaudio within 
>> the OLPC environment.
>> http://wiki.laptop.org/go/Pulseaudio
>> Please feel free to add and comment.
> Just a quick comment on this:
> As I told several people from OLPC already, I am not sure if PA is
> ready for the XO yet. Because we don't close the audio device on idle
> PA will shorten your battery time immensly. 
> Also, we require FP for our calculations due to our reliance on
> libsamplerate for resampling. Due to the slow FPU in the XO this might
> be a problem as well.
> Also, to be really useful PA should be able to change the fragsize
> dynamically during playback, so that we can use large frags to save
> power but use smaller frags when low-latency applications are
> running. Unfortunately ALSA cannot do this as of now.
> Next week I will visit Takashi Iwai from ALSA to discuss with him
> which could be done to make PA more useful for embedded/slow/low-power
> machines.
> In short: right now I would not recommend running PA on the XO. We're
> working on this, though.
> Lennart

Hi Lennart,

I put this site together to have a general entry point for this topic. 
So people can maybe help to make it happen or know what the current 
state - the issues are. If you don't mind i will go ahead and add your 
points to the wiki as 'open issues'.

Thanks for your comments,

More information about the pulseaudio-discuss mailing list