Re: Pinnacle PCTV Pro no stereo sound

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On Wed, Apr 02, 2003 at 12:57:35PM +0200, Gerd Knorr wrote:
> Jordan <lx_xero@xxxxxxxx> writes:
> 
> > Apr  1 20:56:01 [kernel] msp3410: status=0x14 (pri=yes, sec=no, mono)
> 
> > It says setting mode btsc stereo no matter what I do but this seems to have no
> > effect. The status line also seems to say mono no matter what I do.
> 
> That's just the msp34xx status register decoded.  For some reason the
> msp34xx thinks there is no stereo signal available ...
> 
> > the second to last line that says BTSC setstereo: stereo changes if I set
> > output to mono, or lang1, or lang2, and it changes to those accordingly. I only
> > see that line after I close mplayer, which I thought was odd. Mplayer still says
> > that v4l reports mono, no matter what I do.
> 
> ... and that's why trying to force stereo doesn't work too.
> 
> According to the data sheets that version of the chip should be able
> to handle a BTSC stereo signal.  I have no idea what is going on.  Any
> chance the TV station really sends a mono signal only?

It's possible. I was using my vcr to test it, plugging in a stereo cd player
and running the output to the card. It seemed not to work, but later proved to
be an unreliable way to test as it seems not to output true stereo despite it
being a stereo vcr. I'll see if I can find another way to test it and verify
this for sure.

There's another issue now which I didn't even notice before. Interference. The 
picture just doesn't look good at all when using the tuner. I have no idea how 
it looks on svideo or composite inputs but it seems as if the MT2032 is much 
more picky about signal quality then my pctv studio (non pro) was. There's fuzzy
vertical lines going down the screen. Also, color seems off. I used a signal
amplifier and it helped a bit but color gets even more distorted then. Taking 
off my splitter and not using the amplifier seemed to help even more. I don't 
know why it's acting like this as the other card gave really good picture 
quality with the same signal. Any ideas?


> 
>   Gerd
> 
> -- 
> Michael Moore for president!
> 
> 
> 
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