Mike Isely wrote: > OK, I tried a couple things. > > First, I have 3 PVR USB2 devices here of various ages. So I looked at > the packaging. The newest two devices have the same box, while the > oldest device was packaged in a box with different artwork on it (same > size box however). On that old box, I found one spot where it says > this: "125 channel cable ready TV tuner and FM stereo radio receiver". > However on the other two boxes the best I could find just had "FM radio > receiver". > > I listened briefly to FM radio (using mplayer) on a model 29032 device > (one of the newer ones). You're right. It's mono. > > Wondering if perhaps the stereo FM capability had been lost during a > "cost reduction" for the newer devices, I pulled my oldest device out of > my mythtv setup and tried its FM radio. (This was the device that > arrived in the packaging that said "FM stereo radio receiver".) Result? > Same as before: mono audio for the FM radio. > > This could very well be a bug in the V4L chip-level driver for the > demodulator. Or it could be that the FM radio simply doesn't work in > stereo (which would be rather astounding). There are a few other leads > to chase here. I'm going to try this same experiment under Windows. > If someone would like to try that first, I'd welcome hearing about the > result. Before I can try this under Windows, I've got to reinstall the > WinTV package and drivers under Windows. I haven't had to run this > under Windows for quite a while and have since replaced all the hardware > and reinstalled the operating system. (For me the half-life of a stable > Windows installation seems to be about 6 months. Stupid P.O.S.) > OK, I installed the USB2 onto a WinXP laptop. The WinTV Radio program is stereo. A red STEREO 'led' lights up, and there's a MONO toggle button that does what it says. My original package just says "FM radio receiver". It doesn't mention stereo (but their web site does).
I thought I've seen on the web where other devices such as my PVR-150 explicitly state FM mono, but in most places it doesn't say either way. Rather than search again I think I'll boot up WinXP and see what happens. Not that the PVR-150 is of much interest to this list, but if it is also stereo under WinXP then the problem could be in low-level code shared by pvrusb2 and ivtv (or wherever it is). ...RickM... _______________________________________________ pvrusb2 mailing list [email protected] http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2
