Quote from: JerryK on June 18, 2025, 07:51:44 AMMy new iPad A16 is not directly responsible for this and possibly not at all, except that the now-discontinued 3.5mm socket required use of an adaptor - one that can also charge the iPad.Thanks for posting your findings! Seems like a good guess, and could be also what is happing with our setup using an older iPad. It uses an older interface... lightning to a (now old) charging / DAC / MIDI adapter (iConnectivity Audio2+). In addition to a DAC power-up delay theory I've also wondered if there's simply a bug in the way the Audio2+ buffers initial audio frames such that it effectively drops the first frame or two when starting up the DAC.
I think the adaptor - which in this case is not just a USB-C to 3.5mm 'cable' but also includes a USB-C socket for simultaneous charging - is probably converting USB Digital to Audio and trying to be clever by switching off the power to that D-to-A converter (in the adaptor) when there is no audio to convert. I wish it wouldn't.
Then, when some digital audio arrives, the adaptor switches on the D-to-A converter, but slowly, over more than 0.5 seconds at a guess, so that we don't hear a click. Of course, that's also hiding my wanted 1st click of the count-in.
This is largely guesswork but seems likely.
Another, similar adaptor but with Lightning connectors, from the same manufacturer, does not have this problem on my older iPads.
A cable-only adaptor works fine too but of course I can't also charge the iPad.