Anssi Hannula wrote: > Howard Lowndes wrote: >> My setup is 3 machines all running Fedora Core 6 with 2.6.18 kernels. >> >> Machine 1 is my laptop where I want to run mythfrontend. >> Machine 2 is where I want to run mythbackend. >> Machine 3 is where I am running MySQL. >> >> I have compiled MythTV on m/c 1 and m/c 2 from source. >> >> I have no problems with running this setup as far as video is >> concerned for DVB-T (I haven't yet tried composite or s-video) - >> everything works fine. My problem comes with getting any audio at all. >> >> I suspect that my problem might be with the capture card. It's a >> LifeView FlyDVB-T Duo PCI and does both analogue TV and digital TV >> capture as well as composite and s-video capture. The chip on the >> card is a Phillips saa7134. The card has two connectors up in one >> corner. One is a 4 pin Molex type connector and is marked "CD IN" (I'm >> guessing that the purpose of this is obvious). Next to it is a 4 pin >> connector that I think is an SB type connector and it is marked "AUDIO >> OUT". The card came without any card to motherboard cables and in the >> doco (Windows only naturally) makes no reference to any cabling from >> card to motherboard, but I suspect that such a cable is necessary. >> >> I do know that the sound systems work fine on both m/c 1 and m/c 2 >> under other circumstances. >> >> So, my questions are: >> >> 1. Do I need to cable the sound separately, or should the sound be >> being handled over the PCI bus along with the video stream? > > The DVB stream that is transfered over PCI includes both video and > audio, no need for cabling when DVB is in question. That's good. Am I right in assuming that this also applies to analogue signals as well as digital signals. > >> 2. What is the pin assignment for the SB connector? I'm assuming at >> this stage that it is the same as for the Molex, namely R G G L. > > Don't know that one. It doesn't matter then. > >> 3. What do I need to do to either alsa or oss on the backend machine, >> and also on the frontend machine? I really am clueless as to how >> Linux sound works. > > Backend machine does not need audio, the DVB stream is transfered to the > frontend machines. > >> 4. How does MythTV capture and store the sound? Does it do that as a >> combined stream together with the video into the .nuv files? > > I'm not familiar with MythTV, but I thought it recorded DVB into TS MPEG > files. If it has the ability to record DVB to .nuv files as well, they > contain audio as well. .nuv is the default format when recording analogue with MythTV apparently, I think MPEG2 is the default when recording digital. > >> Any clues or pointers gratefully received - I'm getting good at lip >> reading :) > > I'd guess MythTV frontend audio settings are not configured properly. It looks like I will need to focus on that then. > -- Howard. LANNet Computing Associates - Your Linux people <http://lannetlinux.com> When you want a computer system that works, just choose Linux; When you want a computer system that works, just, choose Microsoft. -- Flatter government, not fatter government; abolish the Australian states. _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
