Increasing the bttv buffer size makes a large difference in length of time audio will play back successfully using the BT878 (in the Hauppauge WinTV PVR-350). I am using an Audigy 2 sound card. The CPU is an Intel 3Ghz with only 512K RAM.
sudo gedit /etc/modprobe.conf and change the value of gbuffers to 512 mplayer /dev/video0 Lengths of time audio and video interleave properly until "Cannot sync MAD frame" error occurs. Both video and audio stop; then the video restarts but the audio does not: gbuffers=16 (29 seconds) gbuffers=32 (1 minute 10 seconds) gbuffers=128 (5 minutes 11 seconds) gbuffers=256 (18 minutes 33 seconds) SO I kept increasing gbuffers and rebooting the machine. Didn't work. Even backing the values down again ... it now hangs after 5 seconds to a minute. Heat? The single line in /etc/modprobe.conf now reads "options bttv radio=1 tuner=28 card=72 gbuffers=128 i2c_delay=128" -- tv card audio not working https://bugs.launchpad.net/bugs/29789 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
