Hi,

beeing busy with a live looping mechanism, I need a patch to measure the latency of my system.
I've found the roundtrip latency tester: http://www.pdpatchrepo.info/patches/patch/92

It works well under two conditions:

1. A microphone is plugged in and placed directly in front of the speakers.
2. There is no loud noise in the background.

Both conditions might be problematic in live situations, especially the second.

My question is, if there's any other possibility to measure the latency?

@xgr You could temporarily plug the [dac~] directly to the [adc~] while testing the latency...... bypassing the "air"..........
David.

Thanks for reply.

OK, just to be shure:
Do you mean, I should plug the cable from the output of my soundcard directly to the input?

Xaver

@xgr Yes........ with the latency meter...... not if you have an amplifier (mix) patch or program running as that would cause feedback...

You could reduce the click output being sent from the [dac~] with a [*~ 0.01] maybe if the soundcard does not "auto" to "line in"........ or change the soundcard input to "line in" if possible.
David.

I connected the output of my soundcard to it's input, and it makes a great difference.
Via microphone I get a latency of 533 samples (12.08 msec), via cable 440 samples (9.97 msec)

My Soundcard is set to 64 samples, pd delay to 5 msec. Smaller delays on pd have no influence.

My soundcard has the option to set the latency to 48 samples. Doing that, the measured latency increases. I tried a [block~ 48], but that didn't change anything.
Isn't it possible to set the latency of the soundcard to smaller values than 64 samples?