I am using

ivtvctl version 0.10.5 (tagged release)
debian etch, kernel 2.6.18-4-686.

In my setup there is a PVR150 and a PVR350.

When recording from PVR350's tuner, audio is
corrupted.

In the recorded MPEG file, about every 0.5 seconds
there is a switch between mono and stereo sound.

In the attached picture you can see the difference
between left and right channel. At times where only
mono is provided, the difference signal is zero. There
also is a time scale below for measuring how long those
interruptions are.

IMHO there is something wrong with the tuner control
during recording.


Some additional infos on this experiment:

- Recording from SCART or CINCH doesn't produce the above
  described problem.

- I did not try it with PVR150's tuner.

If you have further questions, please contact me.


Regards,
Herbert.

<<attachment: stereo-difference.tif>>

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