[MPlayer-users] choice of audio device ...
Albretch Mueller
lbrtchx at gmail.com
Sun Jun 17 17:16:27 CEST 2012
> OTOH, the Linux kernel deprecated OSS
~
I see. I had noticed sound started to get degraded as I watched a
long movie or many little ones. Here is the sound baseline I got:
~
$ sudo lspci -v
...
00:14.5 Multimedia audio controller: ATI Technologies Inc IXP SB400
AC'97 Audio Controller (rev 01)
Subsystem: Hewlett-Packard Company Device 3009
Flags: bus master, 66MHz, slow devsel, latency 64, IRQ 17
Memory at fe02a000 (32-bit, non-prefetchable) [size=256]
Capabilities: [40] MSI: Enable- Count=1/1 Maskable- 64bit-
Kernel driver in use: ATI IXP AC97 controller
...
~
$ ls -l /proc/asound/card0
total 0
-r--r--r-- 1 root root 0 Jun 17 10:40 atiixp
dr-xr-xr-x 2 root root 0 Jun 17 10:40 codec97#0
-r--r--r-- 1 root root 0 Jun 17 10:40 id
-rw-r--r-- 1 root root 0 Jun 17 10:40 oss_mixer
dr-xr-xr-x 3 root root 0 Jun 17 10:40 pcm0c
dr-xr-xr-x 3 root root 0 Jun 17 10:40 pcm0p
dr-xr-xr-x 3 root root 0 Jun 17 10:40 pcm1p
~
$ lsmod | grep snd
snd_atiixp 9174 2
snd_ac97_codec 77917 1 snd_atiixp
ac97_bus 742 1 snd_ac97_codec
~
$ alsactl -v
alsactl version 1.0.23
~
> So usually on Linux you would use -ao pulse
~
For some weird reason my hardware and software don't seem to be teaming up
~
$ dpkg -l | grep -i ac97
$ dpkg -l | grep -i atiixp
$ dpkg -l | grep -i pulse
ii gstreamer0.10-pulseaudio 0.10.30-1 GStreamer plugin for PulseAudio
ii libpulse-browse0 0.9.23-1 PulseAudio client libraries
(zeroconf support)
ii libpulse-mainloop-glib0 0.9.23-1 PulseAudio client libraries
(glib support)
ii libpulse0 0.9.23-1 PulseAudio client libraries
ii libsox-fmt-pulse 14.3.1-1 SoX PulseAudio format I/O library
ii pulseaudio 0.9.23-1 PulseAudio sound server
ii pulseaudio-esound-compat 0.9.23-1 PulseAudio ESD compatibility layer
ii pulseaudio-module-x11 0.9.23-1 X11 module for PulseAudio sound server
ii pulseaudio-utils 0.9.23-1 Command line tools for the
PulseAudio sound server
~
Also I searched and found way too many cases of "mplayer -ao alsa hw
hw plughw device ..." uses, but could not find this section on the
mplayer tutorial. I would like to fix the problem and understand it
well too in case I need to troubleshoot a similar one
~
What would you suggest to squeeze the best performance out of it?
~
thanks
lbrtchx
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