An update, and request for confirmation / suggestions: I'm trying to use RealProducer 8.5 on RH7.1 (kernel 2.4.2/bttv 0.7.57) for live capture from a Hauppauge WinTV Theater card. Video works fine now, but audio is silent. I've eliminated all the soundcard (EMU10K1 - SB Live!) issues by concentrating on the line output of the WinTV direct to a pair of amplified speakers. If I use xawtv (3.34) to select input, the sound correctly follows the video source. Silence if I use RealProducer :-( Also goes to silence when I close xawtv - and that's different to how it was on RH6.2 (kernel 2.2.19/bttv 0.5.35) - the last selected source used to continue to play. That was the big clue. RealProducer audio used to work on 6.2/2.2.19/0.5.35, and I'm betting that this is because the WinTV card audio was left in its last state. This was where I found Gerd's Sound-FAQ in the xawtv docs very useful - by adding "bttv_gpio=1" to the insmod options in /etc/modules.conf, the card gpio messages get written to dmesg, and I was able to compare the startup of xawtv and RealProducer (rmmod bttv, etc between). Initialisation is identical up to a point where we get a series of [audio: off] on both, but which xawtv then follows with [audio: tuner], [audio: off], [audio: extern], whilst RealProducer stays silent. I hope that I will be able to get Real to address this issue, but in the meantime: a: does it make sense to anyone who's been involved in this field? b: is there a workround - perhaps other than setting all the elements of the audiomux array to the [audio: external] value? Thanks to Gerd for his excellent documentation and debugging tools, and apologies for not using them earlier :-) -- Mike Onyskiw
