FYI: I have a PVR-150 running on an old Dell Optiplex (no PCIe, just PCI). I had no problems until upgrading to the lastest ivtv driver, and published firmware and the lastest mythtv stable on Debian Etch (2.8.18). previously I was using the same version of linux, but with the previous stable mythtv and the ivtv drivers published about one year ago.
After the 'upgrade', the tinny or fuzzy or scratchy audio on the PVR-150 (and apparently the 500, a dual 150) would set in randomly, with a bias toward every other scheduled audio recording. The problem is not in playback, the distortion is encoded in the mpeg stream, it is an input issue. In my case the input is the s-video input and the RCA left/right audio. I've proven (by hotwiring the audio leads to a separate amp/speaker setup) the supplied audio is clear into the PVR150. I can make the problem appear at will by playing new pvr-150 sourced mpeg files and disappear by playing ones recorded before the upgrade with no changes to the audio - out playback setup. (same card as source, same resolution, etc, etc.) But I've found a sort-of fix v4l-ctl -c audio_later_ii_bitrate=13 Of some interest -- the rate listed was already at 13. Somehow the pvr-150 just began to encode audio at a very low rate. Actually setting the rate to any legal value at all restores normal audio. Harry _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
