[mythtv-users] Problems with audio (no sound).

[MAZ]

a few tries later ... but no sound yet. :(

xawtv works fine!

sound in the frontend works (just noise). Set to ALSA:default. Backend 
is set to /dev/dsp.

I have the following setup:
 >> modprobe.conf
alias snd-card-0 snd-intex8x0
install snd-intel8x0 /sbin/modprobe --ignore-install snd-intel8x0 && 
/usr/sbin/alsactl restore >/dev/null 2>&1 || :
remove snd-intel8x0 { /usr/sbin/alsactl store >/dev/null 2>&1 || : ; }; 
/sbin/modprobe -r --ignore-remove snd-intel8x0

 >> asound.rc
pcm.intel8x0 {
        type hw
        card 0
}

ctl.intel8x0 {
        type hw
        card 0
}

 >> aplay -l
card 0: SI7012 [SiS SI7012], device 0: Intel ICH [SiS SI7012]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

 >> lspci | grep audio
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] 
Sound Controller (rev a0)

 >> cat /proc/asound/pcm
00-00: Intel ICH : SiS SI7012 : playback 1 : capture 1
00-01: Intel ICH - MIC ADC : SiS SI7012 - MIC ADC : capture 1

 >>  lsmod |grep -E 'snd|sound'
snd_intel8x0           32093  1
snd_ac97_codec         88161  1 snd_intel8x0
snd_ac97_bus            2497  1 snd_ac97_codec
snd_seq_dummy           3781  0
snd_seq_oss            31809  0
snd_seq_midi_event      7105  1 snd_seq_oss
snd_seq                49617  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          9037  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss            50545  0
snd_mixer_oss          17985  1 snd_pcm_oss
snd_pcm                86981  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer              24901  2 snd_seq,snd_pcm
snd                    54309  11 
snd_intel8x0,snd_ac97_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore               9889  1 snd
snd_page_alloc         10697  2 snd_intel8x0,snd_pcm

MAZ wrote:
> Hi!
>
> thanks for your help.
>
> I changed the mythbackend setting back to /dev/dsp but I still have no 
> sound in my recordings.
>
> When I use "cat /dev/urandom > /dev/dsp" I can hear sound. But when I 
> try "asound -D /dev/dsp track_2.mp3" I get the following message:
> "ALSA lib pcm.c:2099:(snd_pcm_open_noupdate) Unknown PCM /dev/dsp
> aplay: main:542: audio open error: Datei oder Verzeichnis nicht gefunden"
>
> :(
>
> Thanks,
> Mathias
>
> Michael T. Dean wrote:
>   
>> On 03/05/2006 04:50 PM, MAZ wrote:
>>
>>   
>>     
>>> I looked at stdout from mythfrontend and mythbackend.
>>> mythfrontend is now set to "ALSA:default" (Audio-Device) and "default" 
>>> (Mixer). There is still no sound in LiveTV but I can change the Volume 
>>> with F10 and F11 (I can change the volume of the noise). ;)
>>> Mythbackend is set to /dev/dsp as I wrote before. Every attempt to 
>>> change that has failed. I looked at the "-v all" output and when I 
>>> create a new capture device (with audio-device set to ALSA:default) the 
>>> mysql-output shows that it writes /dev/dsp to the database. I tried to 
>>> set "ALSA:default" in the database manually but now mythbackend can't 
>>> initialize the capture device.
>>> What should I write into the audiodevice-field in the database?
>>>  
>>>
>>>     
>>>       
>> Myth cannot (yet) record with ALSA devices--it requires an OSS device 
>> (/dev/dsp or similar) to work.  Turn on ALSA's OSS emulation and you'll 
>> have an OSS device.  Only ALSA /playback/ is supported (and that's on 
>> mythfrontend).
>>
>> Mike
>> _______________________________________________
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>> mythtv-users at mythtv.org
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>>
>>   
>>     
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