[LAU] Zoom H5 jack_iodelay

Lorenzo Sutton lorenzofsutton at gmail.com
Sat Mar 20 18:06:41 CET 2021

Hi David, all,

Creating a new thread as the old one was pretty long...

On 19/03/2021 15:22, David Kastrup wrote:

 >> - Zoom H5 shows 4 inputs in jack: the L/R mics and the inputs 1 and 2
 > Oh, can you just put the headphones right next to the mics (makes
 > astonishingly little difference in comparison to direct connections) and
 > use jack_iodelay for measuring out the latency of the H5 with your
 > settings?
 > Numbers are surprisingly hard to come by for any audio interface.

This is what I got by connecting jack_delay to one output and putting 
the headphone right in front of the microphones (connected only one to 
the jack_delay input). These are common jack settings I use or have used 
with this device, although the 32 Frames is very unstable and the 64 
Frames one gets a few xruns depending on what it's used with (but still 
more usable). The 128 Frames settings is very stable.

    SR    Fr/p   Avg. delay reported (ms)
	128,2	22.7
	64,3	18.7
	32,3	14.2

	128,2	25.2
	64,3	20.6

	128,2	22.6
	64,3	18.6

	64,3	18.6

Hope this is useful /interesting


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