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BTTV Sound Won't Shut Off

Posted on 2004-10-08
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Last Modified: 2013-12-06
Hello-

I am running Fedora Core 2 and was wondering if there is a better method right now for shutting off the sound when using the bttv?  Right now I have to issue /sbin/modprobe -r bttv to stop the sound.

Thank you!
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Question by:aaeandcee
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11 Comments
 
LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 12265714
Does your TV card provide it's own sound support, or did you have to connect the TV card with a cable to your sound card?
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Author Comment

by:aaeandcee
ID: 12265752
I had to connect a cable to my sound card.  
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LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 12265759
Which application are you using to watch TV? In general, you have to tell your application which audio input your TV card is using to that the application can mute or control the audio card.
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Author Comment

by:aaeandcee
ID: 12265899
I'm using TVTime.  If there is a better application for this, please let me know.
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LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 12265993
Look into the directory /etc/tvtime or /usr/local/etc/tvtime and edit the file tvtime.xml. In this file look for a line like this:

  <option name="MixerDevice" value="/dev/mixer:line"/>

Change the configuration so that it matches the input of your sound card that you are using.
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Author Comment

by:aaeandcee
ID: 12266102
I am somewhat of a Newbie, how do I determine what to put on this line?  The device uses my audio in port on the sound card.  My sound card is listed as a 82801DB (ICH4) Audio Controller.  It is using the snd-intel8x0 device driver.  
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LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 12266308
OK, let's take a step back: Can you control the volume with the cursor keys (left and right should decrease/increase the volume)?

Please type this command in a terminal window and cut&paste the output into your comment:

amixer scontrols
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Author Comment

by:aaeandcee
ID: 12266435
Yes, I can control the sound using the right and left arrow keys.

amixer scontrols
Simple mixer control 'Master',0
Simple mixer control 'Master Mono',0
Simple mixer control 'Master Surround',0
Simple mixer control 'PCM',0
Simple mixer control 'Surround',0
Simple mixer control 'Surround Jack as Input',0
Simple mixer control 'Center',0
Simple mixer control 'Center/LFE Jack as Input',0
Simple mixer control 'LFE',0
Simple mixer control 'Line',0
Simple mixer control 'CD',0
Simple mixer control 'Mic',0
Simple mixer control 'Mic Boost (+20dB)',0
Simple mixer control 'Mic Select',0
Simple mixer control 'Video',0
Simple mixer control 'Phone',0
Simple mixer control 'IEC958',0
Simple mixer control 'IEC958 Playback AC97-SPSA',0
Simple mixer control 'IEC958 Playback Source',0
Simple mixer control 'Aux',0
Simple mixer control 'Capture',0
Simple mixer control 'Mix',0
Simple mixer control 'Mix Mono',0
Simple mixer control 'Downmix',0
Simple mixer control 'Exchange Front/Surround',0
Simple mixer control 'External Amplifier',0
Simple mixer control 'Spread Front to Surround and Center/LFE',0
Simple mixer control 'Stereo Mic',0
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Accepted Solution

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Karl Heinz Kremer earned 50 total points
ID: 12266638
The muting is actually done on the TV card, and not the sound card. This means that it's likely that your TV card is not correctly configured.

Which card are you using? This page http://tvtime.sourceforge.net/problems.html (item 4) talks about a muting problem with some cards.
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Author Comment

by:aaeandcee
ID: 12266889
I use the ATI TV Wonder-LE card with the BT878 chip.  
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Author Comment

by:aaeandcee
ID: 12266917
I believe I solved the problem.  On the link you gave me I noticed another issue I was suffering from, the channel being off by one.  I modified the /etc/modprobe.conf file to include the options bttv tuner=2 setting and now the sound shuts off when I exit out of TVTime.  Weird.  Thank you for your help, and the link!
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