# blkx3 - a bash script to feed I/Q data from a pulse audio device into baudline
parec --format=s16le --channels=2 --rate=$SAMPLE_RATE --latency-msec=5 | \
$BL_BIN -scrollcontrol -record -stdin -channels 2 -quadrature -samplerate \
$SAMPLE_RATE -basefrequency $1
You may need to change the path to baudline in the script and maybe also the sample rates. The script takes the baseband centre frequency as its only parameter.
$ blkx3.sh 7184500