[mythtv] Audio warble in MythTV with simultaneous record and playback.
Isaac Richards
mythtv-dev@snowman.net
Sun, 29 Dec 2002 12:55:50 -0500
On Sunday 29 December 2002 12:52 pm, Chris wrote:
> I notice the audio warbles (distorts, gets scratchy) some with
> simultaneous record and playback. The warble effect decreases with time
> but sometimes not completely goes away. This can be heard in recordings
> that are done when there is simultaneous playback. If a recording is
> done without simultaneous playback, there is no audio warble. I managed
> to reduce this by reducing the audio data rate to 22050 in Myth 0.7. I
> dont know what causes this but I speculate it is the system trying to
> keep up with simultaneous access to the hard disk by the encoder and the
> player components. Has anybody else experienced this? I am running
> Redhat 8 with the kernel drivers (not alsa). Using MPEG4 at 480x480
> with 2000 data rate for video. Thanks
More likely, it's your soundcard having problems with full-duplex operation.
Isaac