HI All,

I can use aplay and hear sound out spdif {coax}

I get no sound at all with Mythtv

I have a pcHDTV{3000} and {2} PVR-500 and Firewire.
None of these have sound.

I have googled everywhere I can to no avail...

I have video and it looks great!
just no audio...

Any ideas?

Using onboard sound of a P5P800 MB..
I can play sound with aplay ; as root and as mythtv user...

Does Mythtv load its own asound file or will it use /etc/asound.conf ?
Which I assume that aplay does use that conf file...

Any info would be great!!!

Currently using 3.4L ivtv.

in your setup playback change /dev/dsp to ALSA:spdif or ALSA:digital (you have to type these in you can't scroll to them.

_________________
Have a question search the forum and have a look at the KnoppMythWiki.

Xsecrets

Cool thanks..

I have tried ALSA:digital and ALSA:Digital...

I will try ALSA:spdif tonight...

Ok that didn't work either...

How do you know about using ALSA:spdif instead of /dev/dsp. I looked at the mythtv documentation and found no reference to it.

Looks like I may have a rate issue...

With the about set it appears to lock the rate @ 48000 where when I tried aplay with the /etc/asound.conf rate = 48000 I get no sound. When set it back to 44100 I get sound again.

Is there a way to set Mythtv to 44100?

Here is what my /etc/asound.conf looks like:
pcm.!default {
type plug
slave.pcm "dmixer"
}

pcm.dsp0 {
type plug
slave.pcm "dmixer"
}

pcm.dmixer {
type dmix
ipc_key 1024
slave {
pcm "hw:0,4"
period_time 0
period_size 1024
buffer_size 8192
rate 44100
}
bindings {
0 0
1 1
}
}
ctl.dmixer {
type hw
card 0
}

lspci output: audio snip
0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
Subsystem: Asustek Computer, Inc.: Unknown device 8152
Flags: bus master, medium devsel, latency 0, IRQ 17
I/O ports at a000 [size=256]
I/O ports at a400 [size=64]
Memory at f7eff800 (32-bit, non-prefetchable) [size=512]
Memory at f7eff400 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2

Any Ideas?

you can try setting it in the recording profiles, I know I had to do it for my software card, but even when it wasn't working the others were, because the sound is in the video stream. other than that I don't know what to tell you.

the best place of information I know of for digital sound in knoppmyth is http://knoppmythwiki.org/index.php?page ... AudioHowTo the ALSA:spdif is there as well as how to be able to use /dev/adsp though that part never worked for me.

_________________
Have a question search the forum and have a look at the KnoppMythWiki.

Xsecrets

Thanks again Xsecrets...

The plot thickens... I can use aplay to play a sound.. that is fine in mythtv
I get nothing.

Then I did aplay /dev/dsp... of course it did not play anything got some
strange errors..
underrun!!! (at least 0.020 ms long)
underrun!!! (at least 0.007 ms long)
underrun!!! (at least 0.007 ms long)

Went into Mythtv again and now I have sound.. Hmm now I am not sure
why this occurs...

I will check out that link Xsecrets....

Any more ideas?

Not to sidetrack... for some reason if I reboot the ivtv driver {3.4L} sees my pvr-500s as pvr-250's... but if power off then on again... it correctly see's them as pvr-150's .. weird huh... Haven't had that before....

Ok off to read more info now...