My explorations continue into trying to get RealProducer 8.5 streaming good video and audio from a Hauppauge WinTV Theater Card (BT878). I suspect that my earlier video issues were related to the *old* bttv driver in kernel 2.2.19 (0.5.xx). Certainly, I had previously tested an earlier kernel with 0.6.xx added in, and that had worked well enough for me to jump to the conclusion that when bttv appeared in the mainstream kernel, it would pick up from there. I'll learn :-) Audio, however worked without incident up till now. I'd previously concentrated on an updated RH6.2 installation around kernel 2.2.19 (since Real only mentioned support for kernel 2.2.x, not 2.4.x), but spotted a few postings suggesting it might work. I threw RH7.1 on the machine I'd been using for test, and certainly the video degradation went away with the newer (0.7.xx) bttv driver. But the sound didn't work. Trivial, I thought, and left it for a while to do other work. Hmmm. I'm now convinced that something has changed. Sound from the WinTV card successfully gets from the source to the local speakers (via a SB Live 1024 card - EMU10K1), but all that comes out of the Real System is a low background white noise when at full volume (works OK with prerecorded files). Real identifies its audio source as 2:1 (Line In) on /dev/dsp, and the audio from the WinTV card is externally connected to the "Line In" on the SB Live card. I note that the audio mixer dialogs are subtly different from before - Xmixer / GMixer doesn't seem to have a separate tab for MSP3400. I'm fairly sure I'd seen one before. The only "sliders" that seem to make a difference to TV volume seem to be the "Output Gain" and "Digital 2". Similar in aumix. I can't select either of these with the "Record" - no radio button :-( /var/log/messages offers: "can't locate module sound-slot-1" "can't locate module sound-service-1-0" "can't locate module sound-service-0-3" occasionally, but I don't know what these might be. It feels as though whatever is available isn't being presented to what Real believes to be its "Line In". I currently don't know how to go about reconciling the two, or even verifying my suspicions. Any clues (or obvious answers) welcomed. Regards, Mike Onyskiw
