[mythtv-users] Re: dsp audio with cx8800 cards
strib at amsterdam.lcs.mit.edu
Thu Sep 23 22:48:23 EDT 2004
For the record, this problem was solved by adding 'v4lctl -c /dev/video
volume mute off' to the /etc/init.d/myth-backend script.
Jeremy Stribling wrote:
> Thanks much, this fixed the problem with tvtime and /dev/dsp . . . I
> can now hear delayed audio through /dev/dsp when watching video with
> tvtime (just what the MythTV documentation says should happen).
> However, I still get no sound in MythTV, using /dev/dsp and /dev/mixer
> as the sound devices. I'm still poring through mail archives, though
> I haven't come across anything that worked for me yet. Any other
>> Message: 5
>> Date: Wed, 22 Sep 2004 13:37:32 -0600
>> From: Brent Fisher <brentfisher at shaw.ca>
>> Subject: [mythtv-users] Re: dsp audio with cx8800 cards
>> To: "mythtv-users at mythtv.org" <mythtv-users at mythtv.org>
>> Message-ID: <6c801c86c7fd44.6c7fd446c801c8 at shaw.ca>
>> Content-Type: text/plain; charset=us-ascii
>> I recently had exactly the same problem - I spent several days
>> searching for the answer. It turned out to be that the settings in
>> alsamixer were incorrect. I'm assuming that you are using ALSA.
>> You have to set the capture correctly in alsamixer. This is done by
>> pressing the space bar on the correct item at which point a red
>> "CAPTUR" indicator should appear above the device.
>> I have 2 different motherboards with built-in sound chips. On one of
>> them I need to set capture on the "Line" item. On the other, I need
>> to set it to the "Capture" item.
>> Once you have done this you can actually mute the item and the audio
>> will still be captured.
>> You may have to experiment a bit.
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