[mythtv-users] Cracking audio problem over HDMI ( really spdif with passthru )
mythtv at blandford.net
mythtv at blandford.net
Tue Dec 22 01:47:38 UTC 2009
On 12/16/2009 11:02 PM, Allen Edwards wrote:
>
>
> On Wed, Dec 16, 2009 at 8:48 PM, mythtv at blandford.net
> <mailto:mythtv at blandford.net> <mythtv at blandford.net
> <mailto:mythtv at blandford.net>> wrote:
>
> Hello,
>
> I just purchased a new vizio 37 inch TV.
>
> I really want to feed this tv over HDMI, so I also bought a fanless
> 9500GT card with 1GB. I have connected the digital audio header on
> the motherboard to the input on the video card.
>
>
>
> Please see the wiki I wrote and let me know if that helps or not
> http://www.mythtv.org/wiki?title=AllensDigitalAudioHowto
>
> <http://www.mythtv.org/wiki?title=AllensDigitalAudioHowto>Allen
Hi Allen,
Thanks for the response. I have read through your wiki and think I am
really close.
I have a few minutes to play with this again tonight. Here is what I
have now:
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
more /etc/asound.conf
pcm.!default {
type hw
card 0
device 1
}
Audio output device: ALSA:spdif - Default does not work for me I get no
audio.
Passthrough output device: Default
Max Audio Channels: Stereo (MUST BE SET TO STEREO as of 6/2/2009 for
passthrough to work)
Upmix: Passive
Enable AC3 to SPDIF passthrough checked
Enable DTS to SPDIF passthrough checked
Aggressive sound card buffering off
Use internal volume controls off
So other than the output device, I have matched your recommendation for
the mythtv settings.
and the audio still sounds the same. I am definitely getting audio, but
it sounds like a bad reception on an old antenna. it is crackly and
maybe a like 'tinny'.
I really don't know what to try next.
Michael
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