On Tue, Aug 3, 2010 at 7:02 AM, Jean-Yves Poilleux <jypllx(a)gmail.com> wrote:
Hi
Actually, there is some info that can be found here and there on some forums
(see below)
JDelay is, from what I've understood, a command-line tool that allows you to
determine your sound card latency.
#1 : start jack
#2 : type jdelay in a terminal
#3 : patch connections in jack : input -> jdelay, jdelay -> output, you
should get a tone in your speakers
this is totally and utterly wrong. you have to patch the PHYSICAL
output connector of your soundcard to the PHYSICAL input of your
soundcard.
#4 : latency is calculated, using phase difference
between input and output
#5 : in the terminal, the latency is printed in msec.
It never worked on my soundcard, "signal below threshold"
yes, because jdelay is sending a signal out of the soundcard expecting
it to come back, but you have not connected it so that it can.