[LAU] Zoom H5 jack_iodelay
dak at gnu.org
Sat Mar 20 18:47:11 CET 2021
Lorenzo Sutton <lorenzofsutton at gmail.com> writes:
> 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
>> 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
Ok, that's not really brilliant. When latency is already a problem,
this would end up contributing to it more than most soundcards.
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