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Negated Void l33t
Joined: 25 Dec 2002 Posts: 672
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Posted: Thu Jun 01, 2006 4:17 pm Post subject: MythTV/TV Tuner: How can i sync the audio? |
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Hello!
I'm setting up a mythtv box. I have a Pinnacle PCTV tv tuner. The audio hooks up w/ a loopback cable, from the tv tuner card to the mic input on the sound card.
This results in much oddity - The sound is a full second before the video, and continues when i close mythtv.
Is there a better way to hook things up / set things up?
--Murph |
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Nicias Guru
Joined: 06 Dec 2005 Posts: 446
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Posted: Thu Jun 01, 2006 8:22 pm Post subject: |
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Sounds like you might have your settings wrong in alsamixer. |
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Negated Void l33t
Joined: 25 Dec 2002 Posts: 672
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Posted: Thu Jun 01, 2006 10:42 pm Post subject: |
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Master and PCM are both about 60%
"Surround Jack Mode" is set at "Shared"
"Line" is at 90%
"Mic Select" is at "Mic1"
"IEC958 Playback AC97-SPSA" is at 100
Via DXS[0-4] are at 100
It's in 2 channel mode
"Downmix" is off
"Input Source Select" is set to "Input1"
Everything else muted or at 0.
Is something wrong there? |
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beandog Bodhisattva
Joined: 04 May 2003 Posts: 2072 Location: /usa/utah
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Posted: Thu Jun 01, 2006 10:53 pm Post subject: |
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What version of mythtv are you running?
Also, try this -- turn off automatic transcoding and see if an recorded file is in sync or not. _________________ If it ain't broke, tweak it. dvds | blurays | blog | wiki |
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Negated Void l33t
Joined: 25 Dec 2002 Posts: 672
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Posted: Fri Jun 02, 2006 12:06 am Post subject: |
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It's version "media-tv/mythtv-0.19_p9163-r1"
Transcoding dosn't matter - it occurs when i "Watch TV" too. |
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Negated Void l33t
Joined: 25 Dec 2002 Posts: 672
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Posted: Fri Jun 02, 2006 1:17 am Post subject: |
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Actually, I don't think myth is getting the audio at all.
The recordings i just made as a test have no sound.
How am I supposed to set things so that Myth gets the audio, instead of it just playing becuase it's being fed into my line-in jack?
--Murph |
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Hobbes-X l33t
Joined: 04 Feb 2004 Posts: 823 Location: Seattle, WA
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Negated Void l33t
Joined: 25 Dec 2002 Posts: 672
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Posted: Fri Jun 02, 2006 8:35 am Post subject: |
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Wow, that fixed everything!
Thanks a bundle - really, I doubt i'd have figured that out. I think it was because Alsamixer, by default, only really deals with the "playback" settings, not the capture ones.
*Happily plays with his mythtv* |
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Hobbes-X l33t
Joined: 04 Feb 2004 Posts: 823 Location: Seattle, WA
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Posted: Fri Jun 02, 2006 2:14 pm Post subject: |
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Yeah- I don't like following manuals verbatim, but after I struggled with getting the settings perfect for a couple days I gave it a try out of desperation |
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