[pvrusb2] pvrusb2-mci-20070114 radio support - stereo?
isely at isely.net
Fri Jan 19 22:17:42 CST 2007
Got it! I've got stereo FM radio working now. The root cause was a
VIDIOC_S_TUNER command (which carried instructions to switch to stereo
mode) which wasn't making it to the tuner core.
A new snapshot will be forthcoming.
On Fri, 19 Jan 2007, Rick Macdonald wrote:
> Rick Macdonald wrote:
> > 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).
> This is a resend - the first attempt never showed up.
> Well, I booted this PC into WinXP MCE and tried the internal
> WinTV-PVR-150 (26552 LF NTSC/NTSC-J with Conexant CX23416-22) and lo and
> behold, the FM radio is also stereo!
> So, my WinTV-PVR-150 plays FM mono through ivtv-radio (which just sets
> the frequency and then runs aplay -f dat < /dev/video24), and the
> PVR-USB2 plays FM mono with pvrusb2, but both devices are indeed stereo.
> But wait! After I booted back into Linux, my internal PVR-150 now plays
> stereo FM!
> Unfortunately, the USB2 is still giving me mono.
> I hope this helps.
> pvrusb2 mailing list
> pvrusb2 at isely.net
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