[mythtv-users] using WinTV PVR-350 to play AM/FM radio? (slightly OT)

Steven Adeff adeffs.mythtv at gmail.com
Wed Apr 5 16:51:55 UTC 2006


On 4/5/06, Jeff Simpson <jeffsimpson at alum.wpi.edu> wrote:
> On 4/4/06, Brad DerManouelian <myth at dermanouelian.com> wrote:
> > On Apr 4, 2006, at 7:17 PM, Steven Adeff wrote:
> >
> > > On 4/4/06, Brad DerManouelian <myth at dermanouelian.com> wrote:
> > >> On Apr 4, 2006, at 6:51 PM, Steven Adeff wrote:
> > >>
> > >>> On 4/4/06, Brad DerManouelian <myth at dermanouelian.com> wrote:
> > >>>> Sorry to repost what's already in the thread, but:
> > >>>> I'm able to get FM playing through my MythTV box with
> > >>>> # ivtv-radio -f 90.3
> > >>>
> > >>> sadly, all I get is noise from mine...
> > >>>
> > >>> --
> > >>> Steve
> > >>
> > >> Do you have your antenna plugged in? You won't get anything
> > >> without it.
> > >
> > > first thing I did...  but in fact it gives me the same noise with
> > > or without it.
> >
> > Ok, well mine was working and doesn't any more. Not sure what I would
> > have changed to give me the same noise you're getting.
> >
>
> What noise are we talking about? Is it a static no-signal kind of white
> noise? or a high-pitch screetchy sort of noise?
>
> The output of /dev/video24 is raw audio, so if you don't tell aplay what
> format to read it in, it will sound like screetchy death-metal. Try using
> this command:
>
>
> aplay -f dat < /dev/video24
>
> the "dat" specifies 48000 Hz, 16 bits, stereo, little-endian
>
> alternatively, you can pipe it through sox for an ogg or mp3 conversion:
>
> cat /dev/video24 | sox -t raw -r 48000 -w -s -c 2 - -t ogg out.ogg
> cat /dev/video24 | sox -t raw -r 48000 -w -s -c 2 - -t mp3 out.mp3
>
> I just learned all of this yesterday :-)

it sounds like the tuner can't tune a station noise.

I also notice that when using "-j 100.1"  it says its tuning to freq
00.0, so I'm thinking it may be a bug in the driver/software and that
even though it *thinks* its tuning to the station you ask for, it is
in reality not.

--
Steve


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