[mythtv-users] Audio echo/stutter

[Dean]

Hi Users,

I just upgraded from ivtv-0.3.3 to 0.3.8 and am getting an annoying echo in the
audio of recorded programs.  I can not track it down, but it *seems* to come
from MythTV.

I have a master backend with two pvr-500s and a frontened with an additional
500 for a total of 6 tuners.  So this isn't an issue with line-in echo.

I extracted a short clip of the audio.  You can listen here:
http://pics.deanandadie.net/choppy.mp2  [238K]

You can find my system logs at:
http://pics.deanandadie.net/ivtv.probe

Backend logs during recording of an echo-y program:
http://pics.deanandadie.net/recording
Nothing much here.

Some things I noticed.

o The chop usually comes in about 20-30 minutes into a recording.
o System load appears to have no effect - happened recording a single show this
  morning.
o I did a simultaneous cat /dev/v4l/videoN of all my tuners for an hour and
  found no stutter.  Captures directly from the v4l device contain no echo.
o The tuner does not seem to make a difference.
o The echo does not happen all the time.
o Sometimes I get "IOBOUND" messages, but it doesn't happen every time.  (See
the recording messages above.)
2005-10-06 18:35:58.420 IOBOUND - blocking in ThreadedFileWriter::Write()
2005-10-06 18:36:03.208 IOBOUND - blocking in ThreadedFileWriter::Write()

I'm a little lost here.  Everything was working great on the previous drivers.
 Any suggestions?

Thanks,
--Dean - Unscrambler of eggs
--
Take your time, take your chances
[3278.7 km, 273.4] Apparent Rennerian
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