You have to start a jackd server first, usually with the alsa backend.
jackd -d alsa
now jack_simple_client on another terminal should work
jack_simple_client
Question
I got this code to successfully compile http://dis-dot-dat.net/index.cgi?item=jacktuts/starting/wholesimple
How ever when I run it it tells me the following
usage: jack_simple_client
So I'm thinking it needs some kind of input so i try to run it like the following
./jack_simple_client 0
it tells me the following
jack_client_new: deprecated
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
So how do I got about getting a list of "jack"s?
La solution
You have to start a jackd server first, usually with the alsa backend.
jackd -d alsa
now jack_simple_client on another terminal should work
jack_simple_client