Jack Meter is a basic console based DPM (Digital Peak Meter) for JACK. I wrote it for quickly checking remote signal levels, without having to run X11 to use a pretty graphical meter such as meterbridge.
Usage jack_meter [-f freqency] [-r ref-level] [-w width] [-n] [<port>, ...] where -f is how often to update the meter per second (8) -r is the reference signal level for 0dB on the meter -w is how wide to make the meter (79) -n changes mode to output meter level as number in decibels <port> the ports to monitor (multiple ports are mixed)
./jack_meter alsa_pcm:capture_1 Registering as 'meter-01'. Connecting 'alsa_pcm:capture_1' to 'meter-23750:meter'... -60-50 -40 -35 -30 -25 -20 -15 -10 -5 0 |___|_____|_____|_____|_______|_______|_________|_________|_________|_________| ################################### I