FM Stereo Reception on rPi 3

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dononeil
Posts: 4
Joined: Thu Feb 04, 2021 4:25 pm

FM Stereo Reception on rPi 3

Post by dononeil » Thu Feb 04, 2021 4:53 pm

I just picked up an rtl-sdr dongle, and quickly got it to work on tuning in FM, but I was un-aware that the rtl-sdr tools in linux are only mono.

I've read that there is a patch to add stereo, has this been incorporated into the mainline code yet? If not, where can I get the patch for the latest code base and re-build the tools?

My goal is to get a simple command line FM wideband stereo receiver going on the rPi 3 so I can set it up to launch on startup.

Thanks!

ckoval7
Posts: 91
Joined: Fri Sep 27, 2019 8:54 pm

Re: FM Stereo Reception on rPi 3

Post by ckoval7 » Thu Feb 04, 2021 5:03 pm

What tools are you using? GQRX supports stereo

dononeil
Posts: 4
Joined: Thu Feb 04, 2021 4:25 pm

Re: FM Stereo Reception on rPi 3

Post by dononeil » Fri Feb 05, 2021 3:30 pm

I'm using the rtl_sdr/rtl_fm command line.

Does GQRX support non-gui command line playback like rtl_fm does?

Thanks!

dononeil
Posts: 4
Joined: Thu Feb 04, 2021 4:25 pm

Re: FM Stereo Reception on rPi 3

Post by dononeil » Fri Feb 05, 2021 5:28 pm

Was just playing around with GQRX, cool app, but I need a command line option with low-overhead. Any suggestions on how to get FM-Stereo playback from the CLI?

Thanks!

rtlsdrblog
Site Admin
Posts: 2873
Joined: Mon Nov 19, 2012 11:54 pm

Re: FM Stereo Reception on rPi 3

Post by rtlsdrblog » Wed Feb 10, 2021 2:43 am

Try and see if you can get SoftFM to run, this should support stereo

https://github.com/jorisvr/SoftFM

dononeil
Posts: 4
Joined: Thu Feb 04, 2021 4:25 pm

Re: FM Stereo Reception on rPi 3

Post by dononeil » Sat Feb 13, 2021 5:15 pm

Thanks, that was pretty straightforward of a build and seems to work good!

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