Yes, I think you are thinking too deep. :) You just need to get the audio stream directed to the mixer and then I think you will be ok. The trick is to figure out what the configuration is. Good luck.
--- On Sat, 4/6/13, Dermot Buckley <[email protected]> wrote: > From: Dermot Buckley <[email protected]> > Subject: Re: [pvrusb2] Hauppauge HVR-1900 - PAL-Nc, no audio > To: "Communications nexus for pvrusb2 driver" <[email protected]> > Date: Saturday, April 6, 2013, 11:08 AM > Thanks for the response Lorne. > > Sound works ok on the machine (and in fact I've tried the > device on two others - all with working audio). > But I'm inclined to believe that the issue is lower level > than that anyway (note that the mpeg I've linked to has an > mp3 48kHz audio stream, but it's simply silence). > > My own guess (and it is just that), is that this could be > one of two things: > > 1. The audio tuning is wrong for PAL-N/Nc. The "norm" > for PAL would be either 5.5 or 6.5MHz offset from the video > tuning. But for PAL-N/Nc, the offset should be > 4.5MHz. (so for the example I gave below, with video > at 163.25MHz, the correct audio tuning would be > 167.75MHz). I don't know any way to specifically check > (or set) the audio tuning however, so I don't know how to > check this. I had a look through the pvrusb2 source to > see if I could work this out, but I couldn't find anything > relevant. > > or > > 2. Audio here generally has 2 audio streams (they call the > second the "SAP" stream, I believe it's a variation on MTS > used in NTSC). The primary stream would generally be > in spanish, and the second stream in english. Possibly > this is confusing things (but, if this is truly the issue, I > would expect to get *some* audio, rather than just the > current silence). > > > Maybe I'm digging a little bit too deep here, it might be > just something silly like the audio being switched off > somewhere (but note that I've tried explicitly setting the > audio input also via: v4l2-ctl -d /dev/video1 > --set-audio-input=0) > > > On 6 Apr 2013, at 13:57, Lorne Shantz <[email protected]> > wrote: _______________________________________________ pvrusb2 mailing list [email protected] http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2
