Comparing interface latency

yellow_eyez

@wim said:

Now, if they just add in a 5.8Ghz wireless transmitter and receiver, we're really in business.

lol I know. Right ?

McD

I bought the Onyx3 LatencyMeter app and tested my iPhone and iPad with the Pocket Master as the target audio device.
I get this message when starting LatencyMeter under all conditions (PM attached and verified in AUM, PM attached w no other apps running, no target audio interface attached (does it do an acoustic loop back from speaker to device mic?):

I will try other interfaces tomorrow… but I suspect that start-up message indicates a mismatch of current OS’es and the LatencyMeter app. I contacted the dev via the app and will see if its a need to update the app.

espiegel123

@McD said:
I bought the Onyx3 LatencyMeter app and tested my iPhone and iPad with the Pocket Master as the target audio device.
I get this message when starting LatencyMeter under all conditions (PM attached and verified in AUM, PM attached w no other apps running, no target audio interface attached (does it do an acoustic loop back from speaker to device mic?):

I will try other interfaces tomorrow… but I suspect that start-up message indicates a mismatch of current OS’es and the LatencyMeter app. I contacted the dev via the app and will see if its a need to update the app.

Did you try relaunching after that. There is a known iOS bug that results in apps getting an error changimg sample rate and/or buffer but generally relaunching the apps results in the settings being right.

Sometimes turning Siri on and then off solves it.

filo01

@McD said:
I suspect that start-up message indicates a mismatch of current OS’es and the LatencyMeter app.

What OS do you have? I'm running on 17.7.1 and no LM issues here.

espiegel123

@filo01 said:

@McD said:
I suspect that start-up message indicates a mismatch of current OS’es and the LatencyMeter app.

What OS do you have? I'm running on 17.7.1 and no LM issues here.

FWIW, the OS bug I mentioned is primarily encountered in iOS 18.x but is quite variable.

filo01

@McD , @espiegel123. I can confirm that LatencyMeter can't measure Sonicake Pocket Master even on iOS 17.7.1 version.
I've got the same message as McD posted. Still, I tried to measure PocketMaster with all possible internal USB settings but I got "Check connection/levels" or "Too much noise" messages.
Subjectively, the latency at 44kHz/64 is slightly worse than at 44kHz/512 for Zoom AMS22, which LatencyMeter measured at 29.6ms.

espiegel123

@filo01 said:
@McD , @espiegel123. I can confirm that LatencyMeter can't measure Sonicake Pocket Master even on iOS 17.7.1 version.
I've got the same message as McD posted. Still, I tried to measure PocketMaster with all possible internal USB settings but I got "Check connection/levels" or "Too much noise" messages.
Subjectively, the latency at 44kHz/64 is slightly worse than at 44kHz/512 for Zoom AMS22, which LatencyMeter measured at 29.6ms.

Thanks for checking

McD

The Onyx3 support contact replied to me regarding testing the SonicCake Pocket Master’s IOS latency.

Turns out a recent change in iOS 18 introduced this issue. We are
looking for a workaround, or it may go away with the next iOS update.

reference: https://developer.apple.com/forums/thread/769245

Meanwhile, you can request a refund as the app is of no use to you, here is how:
https://support.apple.com/en-us/118223

I will keep the app to measure latency and do some testing with an older iPad running a prior IOS version.

filo01

@McD said:
The Onyx3 support contact replied to me regarding testing the SonicCake Pocket Master’s IOS latency.

Turns out a recent change in iOS 18 introduced this issue. We are
looking for a workaround, or it may go away with the next iOS update.

reference: https://developer.apple.com/forums/thread/769245

Meanwhile, you can request a refund as the app is of no use to you, here is how:
https://support.apple.com/en-us/118223

I will keep the app to measure latency and do some testing with an older iPad running a prior IOS version.

Hmm, the bolded part of his answer doesn't match my findings from measuring Sonicake on iOS 17.7.1.

espiegel123

@filo01 said:

@McD said:
The Onyx3 support contact replied to me regarding testing the SonicCake Pocket Master’s IOS latency.

Turns out a recent change in iOS 18 introduced this issue. We are
looking for a workaround, or it may go away with the next iOS update.

reference: https://developer.apple.com/forums/thread/769245

Meanwhile, you can request a refund as the app is of no use to you, here is how:
https://support.apple.com/en-us/118223

I will keep the app to measure latency and do some testing with an older iPad running a prior IOS version.

Hmm, the bolded part of his answer doesn't match my findings from measuring Sonicake on iOS 17.7.1.

It may be that the sonicake has a bug itself with the same symptoms

Demay

**MOTU Ultralite MK5 ---> iPad Air 4 2020 (A14 Bionic) 48 kHz 32/64/128 frames **