pipe to snd-aloop

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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