I think it might be an Alsa bug, not a pulseaudio bug.
My setup is: computer -> TV -> receiver, all connected through HDMI. Due to
hardware limitations, the TV is only capable of passing through 2 channel AC3.
So I was using a similar .asoundrc to reencode any multichannel audio to AC3.
Everything worked fine in 13.04, but with upgrade to 13.10, any apps that try
to use the plugin (aplay, mplayer, etc) core dump with SIGFPE. Possibly unlike
the OP, pulseaudio daemon itself start up fine.
Sorry if I'm confusing some terminology, I'm not by any means an expert on this.
Please let me know if there's any information I can provide to facilitate
debugging.
(I tried toggling S/PDIF Default PCM with no success)
$ mplayer -v -ao alsa:device=resampler Norrlanda.wav
...
Trying preferred audio driver 'alsa', options 'device=resampler'
alsa-init: requested format: 44100 Hz, 2 channels, 1d
alsa-init: using ALSA 1.0.27.2
alsa-init: setup for 1/2 channel(s)
alsa-init: using device resampler
alsa-init: opening device in blocking mode
alsa-init: device reopened in blocking mode
[AO_ALSA] Format floatle is not supported by hardware, trying default.
MPlayer interrupted by signal 8 in module: ao2_init
- MPlayer crashed by bad usage of CPU/FPU/RAM.
...
$ cat .asoundrc
pcm.tv
{
type hw
card 0
device 3
}
pcm.a52encoder
{
type a52
slavepcm "tv"
channels 6
rate 48000
bitrate 640
}
pcm.resampler
{
type rate
slave.pcm "a52encoder"
slave.rate 48000
converter "samplerate_best"
}
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https://bugs.launchpad.net/bugs/1242390
Title:
ac-53 (a52 plugin) core dumps
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