[mythtv-users] NVP: Video is 30 frames behind audio (too slow), dropping frame to catch up

Mark Hutchinson mark at onnow.net
Sat Feb 9 17:15:40 UTC 2008


I have done this.  No different unfortunately.

Other ideas?
On 9-Feb-08, at 9:56 AM, Michael T. Dean wrote:

> On 02/09/2008 08:52 AM, Mark Hutchinson wrote:
>> I have done this. My sound is analog.
>> I have put in a PCI Creative Soundblaster Audigy.
>> No /etc/asound.conf or .asoundrc for the mythtv user ( mythtv is the
>> user running mythfrontend )
>> Mythfrontend sound setup is this:
>>
>> Audio output device: /dev/dsp
>> Passthrough: Default
>> Aggressive sound checked
>> Mixer device: default
>> Mixer controls PCM
>
>
> Your Audio output device and Mixer device are closely tied to each
> other.  If you use an OSS specification for one, you /must/ use an OSS
> specification for the other.  Since you say you're using /dev/dsp  
> above,
> you /must/ use /dev/mixer.  If, however, you use ALSA:default (output
> device), you /must/ use "default" (though, it will allow you to put
> "ALSA:default" for mixer and ignore the "ALSA:" part).
>
>> Still have logs full of the dropped frames.
>>
>> Log attached
>
> Which shows:
>
> 2008-02-09 06:40:21.798 Opening OSS audio device '/dev/dsp'.\
> Unable to open mixer: 'default'\
>
> Won't work.
>
> Renderer looks good, though.  :)
>
> Mike
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