* pipe to snd-aloop
@ 2017-12-09 21:43 Chris Percol
2017-12-10 13:10 ` Måns Rullgård
0 siblings, 1 reply; 2+ messages in thread
From: Chris Percol @ 2017-12-09 21:43 UTC (permalink / raw)
To: sox-users
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Hi,
I'm trying to pipe audio output on my raspberry pi3 to a snd-aloop device
(hw:0,0,0).
I have had no success so far and was hoping someone could point out how I
could update the following command to send the output to my loop device?
rtl_fm -f 132.076M -M usb -r 24k -l 0 -p 55 -E deemp -g 20 | play -r 24k -t
raw -e s -b 16 -c 1 -V1 -
I experimented with setting AUDIODEV=hw:0,0,0 but the command still seems
to output to the pi's default audio device.
My end goal is to receive the audio into my ham radio software, wsjt-x.
There are graphical ways to achieve this, like using gqrx, but it kills the
cpu on my pi.
Many thanks,
Chris
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* Re: pipe to snd-aloop
2017-12-09 21:43 pipe to snd-aloop Chris Percol
@ 2017-12-10 13:10 ` Måns Rullgård
0 siblings, 0 replies; 2+ messages in thread
From: Måns Rullgård @ 2017-12-10 13:10 UTC (permalink / raw)
To: Chris Percol; +Cc: sox-users
Chris Percol <chris.percol@gmail.com> writes:
> Hi,
>
> I'm trying to pipe audio output on my raspberry pi3 to a snd-aloop device
> (hw:0,0,0).
>
> I have had no success so far and was hoping someone could point out how I
> could update the following command to send the output to my loop device?
>
> rtl_fm -f 132.076M -M usb -r 24k -l 0 -p 55 -E deemp -g 20 | play -r 24k -t
> raw -e s -b 16 -c 1 -V1 -
>
> I experimented with setting AUDIODEV=hw:0,0,0 but the command still seems
> to output to the pi's default audio device.
Replace "play ..." with "sox ... -t alsa hw:0,0,0"
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