Provided by: jack-example-tools_4-4_amd64 

NAME
jack_rec - JACK toolkit client for recording audio
SYNOPSIS
jack_rec -f filename -d seconds [ -b bitdepth ] port1 [ port2 ... ]
DESCRIPTION
jack_rec is a basic, but useful, audio recorder that will record audio from 1 or more JACK ports to a
file on disk. The file format is always RIFF/WAV, with samples stored as signed integers. The sample bit
depth can be selected using the -b option. The file will have as many channels as there are ports
specified on the command line - each channel will contain the data recorded from one port. The user
should generally specify the duration (in seconds) using the -d option. If not specified, jack_rec will
record until terminated by a signal (eg. from Ctrl-c).
This application is not intended to be a heavy duty audio recorder, and originated as an example client
to show how to handle threading and disk I/O in a JACK client. However, it is a useful, simple recorder
and is included in the JACK toolkit as a result.
4 2022 JACK_REC(1)