[GreenKeys] ITTY audio output using Raspberry Pi?

[Chris Elmquist]

On Thursday (12/04/2014 at 07:31PM -0800), epvgk at limpoc.com wrote:
> On Thu, Dec 04, 2014 at 07:47:10PM -0500, paul at paulnewland.com wrote:
> > Greetings --
> > 
> > I'm interested in using a Raspberry Pi and a USB sound card dongle to
> > recover the audio from the ITTY broadcast service to feed it to my TU.  Has
> > anyone already done this?  I'd be grateful for any suggestions or guidance
> > the GreenKeys members may offer on how they accomplished this.
> > 
> > 73,
> > 
> > Paul Newland, ad7i
> 
> to do it simply from commandline on the raspberry pi, install "mplayer" : 
> 
> sudo apt-get install mplayer
> 
> Then use mplayer to play the ITTY stream: 
> 
> mplayer http://209.180.212.65:8000/listen.pls 

Yes! I concur.  I have done it and also did it using the built-in audio.
I didn't use a USB sound adapter.

I was running ArchLinux however and not a Ubuntu/Debian thing but results
should be similar.

> Most any usb audio dongle should just work once it's plugged in. 
> You can (from the command like) use the command "alsamixer"
> to adjust volume, etc. 
> 
> If mplayer insists on using the useless builtin audio on the pi,
> you can run it like "mplayer -ao alsa:device=hw=1,0" to force it
> to use the newly installed sound device. 

I've also done it using the "mpg123" app.  It has a lot smaller
footprint than mplayer fwiw...

Chris N0JCF
-- 
Chris Elmquist