The Great Pulseaudio Mixer Debate: a modest (productive) proposal
Callum Lerwick
seg at haxxed.com
Wed Apr 29 00:21:22 UTC 2009
On Mon, 2009-04-27 at 13:59 -0400, Ben Boeckel wrote:
> > Subject: Re: The Great Pulseaudio Mixer Debate: a
> modest (productive)
> > proposal
> > From: Ben Boeckel <MathStuf at gmail.com>
> > To: fedora-devel-list at redhat.com
> > Date: 04/27/2009 10:12 AM
> >
> >> I've had X lock up or temporarily freeze and
> kaffeine
> >> (playing through PA via xine) still plays. The only
> way
> >> I've been able to get it to skip is to force
> basically
> >> everything into swap with programs that take up 3+GB
> of
> >> RAM (making markov chains from big.txt takes...quite
> a
> >> bit in duck-typed languages). Maybe it's the dual
> core
> >> 3.0GHz, but I've found it hard to skip apps using
> PA.
> >> PA is taking 0% CPU and kaffeine jumps to 1% playing
> >> flac files. Also, PA hasn't even jumped towards the
> top
> >> of usage at all in the past few minutes.
> >
> >
> > That's amazing, because I have a 3ghz dual core and
> PA takes ~10% CPU to
> > play FLAC from Rhythmbox and can skip if I'm doing a
> lot of work - say
> > ffmpeg transcoding and moving files. Intel HD audio
> (yes, generic)
> > Analog Devices chip.
> >
>
> Maybe its a difference between xine and gstreamer?
>
> % lspci | grep -i audio
> 00:1b.0 Audio device: Intel Corporation 82801JI (ICH10
> Family) HD Audio Controller
Check your logs. This is quite possibly the difference between "My
hardware does 44.1khz natively" and "My hardware only does 48000khz and
playing anything but a DVD requires resampling". Later Intel chipsets
all seem to be the latter.
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