Install jack-stdio by entering the following commands in the terminal:
sudo apt update sudo apt install jack-stdio
Description:
program to pipe audio-data from and to JACK
jack-stdout is a small tool that writes JACK audio-sample data to buffered standard output. jack-stdin reads raw audio data from standard input and writes it to a JACK audio port. . By default jack-stdout writes 16 bit signed integer raw audio data (much like mpg123 -s at JACK's samplerate, but it can output signed/unsigned 8/16/24/32 bit integer and 32bit floating-point data, both big/little endian.
Homepage: http://rg42.org/oss/jackstdout/
Version: 1.4-1build2
Section: universe/sound