On Thu, 02 Apr 2009 11:16:39 +0200 Atte André Jensen <atte.jensen@xxxxxxxxx> wrote: > Hi > > I tried measuring my latency with jdelay. Started in on the > commandline, first it said > > Signal below threshold... > > Then I connected it's input to the output of system:capture_1 with my > microphone connected and it output to the input of > system:playback_1+2. Now I get a squareish tone and when "singing" > into the microphone I get reading like these: > 22442.483 Inv > 58010.411 ?? > 43602.390 ?? Inv > 43474.474 > 43474.474 ?? Inv > Signal below threshold... > Signal below threshold... > Signal below threshold... > 25549.731 ?? > 25549.731 ?? Inv > 37749.225 ?? > 37749.225 ?? Inv > 37749.225 ?? > 24653.357 ?? > 24653.228 ?? Inv > 25677.165 ?? > 11013.134 ?? Inv > 25677.153 ?? > 2821.046 ?? Inv > 2821.046 ?? > > The man page says the values are in samples, so for instance a value > of 37749.225 should be 0.77 seconds at 48000, right? This seems bogus > (qjackctl reports 10 ms). > > What am I doing wrong? > Hi Atte. I made the same mistake at first. Simply don't use a microphone, just a patch cable. Latencies are calculated by frames/samplerate, the resulting numbers are milliseconds. What interface are you using? Maybe some comparison would be possible (I have a usb interface). Best regards, Philipp _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
