man jdelay (Commandes) - measure sound card latency
NAME
jdelay - measure sound card latency
SYNOPSIS
jdelay
DESCRIPTION
Jdelay is a simple JACK application that you can use to measure the latency of your sound card. It uses a phase measurements on a set of tones to measure the delay from the output to the input. Accuracy is about 1/1000 of a sample.
To use Jdelay, first start a JACK server and then start jdelay in a console. It will create an input port and an output port. Connect them in some manner (for instance with the QjackCtl patchbay), and check the output on the console to see the delay, measured in samples.
SUGGESTIONS AND BUG REPORTS
Any bugs found should be reported to the upstream author and/or package maintainer.
OTHER INFO
The project homepage is at http://users.skynet.be/solaris/linuxaudio/. Released under the GNU General Public License.
AUTHOR
Jdelay was written by Fons Adriaensen <fons.adriaensen@skynet.be>.
This manual page was written by Dana Olson <jdelay@ubuntustudio.com>, for the Ubuntu project (but may be used by others).