[mythtv-users] Tv Sound Trouble

Allen Edwards allen.edwards at oldpaloalto.com
Sun Jul 20 13:55:10 UTC 2008


fb517255 at skynet.be wrote:
> On Fri, 2008-07-18 at 18:37 +0200, fb517255 at skynet.be wrote:
> 
>>> On Wed, 2008-07-16 at 22:45 +0100, Nick Morrott wrote:
>>>> 2008/7/16 fb517255 at skynet.be <fb517255 at skynet.be>:
>>>>> I just reinstalled my mythbox with a fresh install of Mythbuntu and I
>>>>> got some problems with the sound. All sounds are working except when
>>>>> watching television. If I watch television with TvTime It works without
>>>>> problems.
>>>>>
>>>>> I also noticed that TvTime is un-muting line-in as soon as it starts and
>>>>> re-mutes it after close.
>>>>>
>>>>> How can I tell mythtv to un-mute my line-in when starting to watch
>>>>> television and re-mute it when I quit?
>>>> Try the tip at the end of the bttv section on Jarod's Fedora guide at
>>>> http://wilsonet.com/mythtv/printer-friendly.php#capture.
>>>>
>> Thanks for the reply, indeed this tip helped and I have sound now but
>> from very bad quality. At least it's a step in the right direction;) 
>>
>> So I started playing with the mixer settings. This is what I found:
>>
>> 1) when watching with TvTime I have correct sound and following mixer
>> settings;
>> Line In = Un-Muted - Record checked
>> Capture = Record checked
>>
>> 2) with MythTv (bad sound quality);
>> Line In = Muted - Record checked
>> Capture = Record checked
>>
>> Mythtv doesn't un-mute the line in. If I do it manually when watching tv
>> with Myth I have good sound quality but sound stays when quiting TV
>> mode.
>>
>> Any idea how I can make Myth un-mute line-in and re-mute when quiting tv
>> mode?
>>
>> Thanks. 
> 
> some additional info, maybe this can help. These are my Audio settings
> in MythTV:
> audio output device: ALSA:default
> Passthrough output device: Default
> Max Audio Channels:Stereo
> Upmix: Passive
> Mixer Device: ALSA:default
> Mixer Controls: Master
> 
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> 
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Have you tried deleting all your asound.conf and .asoundrc files and 
just using the built in default settings?  (Save them first)

I found that using the wiki to set these files up just made things not 
work although I use spdif outputs so it is different than what you are 
trying to do.

Allen



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