• Registered: 2023-12-10
  • Posts: 18

Topic: Roundtrip latency o.k.?; Logic at 96 kHz / 128 buffer size = 8.9 ms

Hi I was just wondering;

Is roundtrip latency of 8.9 ms normal in Logic at 96 kHz / 128 buffer size ?
I have an ADI-2 Pro FS R BE connected over USB to a M1 Mac mini OS Sonoma.
I was wondering if this is normal, cause my Motu M4 interface has a latency of only 3.5 ms on the same system.

Does anyone know if latency will be less when the converter is connected to a RME interface like the FireFace UCX II ? (using the same Mac mini)

Kind regards,

Michiel

2 Reply by waedi (edited by waedi 2023-12-10 05:29:00)

  • waedi
  • DAW Mastermind
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  • From: Swiss Zürich
  • Registered: 2020-12-08
  • Posts: 3,467

Re: Roundtrip latency o.k.?; Logic at 96 kHz / 128 buffer size = 8.9 ms

Logic Pro 10.8.1 M1 Sonoma 14.1.2
96kHz and 128 Buffer
roundtrip latency is 8.8ms Mac only, 6.8ms when buffer 32
roundtrip latency is 5.7ms Mac and Digiface USB, 3.7ms when buffer 32

so yes the latency will be less but not sure if it will be less than your Motu, thats low latency.

M1-Sonoma, Madiface Pro, Digiface USB, Babyface silver and blue
  • Registered: 2023-12-10
  • Posts: 18

Re: Roundtrip latency o.k.?; Logic at 96 kHz / 128 buffer size = 8.9 ms

Thank you !, just got the ADI-2, good to know the latency the device has is normal.
I'm surprised though that the Mutu is that fast smile

4 Reply by paulnajar (edited by paulnajar 2023-12-11 08:12:25)

  • From: Sydney Australia
  • Registered: 2007-06-09
  • Posts: 189

Re: Roundtrip latency o.k.?; Logic at 96 kHz / 128 buffer size = 8.9 ms

Yes. The RTL will be much lower if ADI is connected to UCX2 digitally over SPDIF/ AES. The reason is the UCX line uses RME’s own low latency driver - famous worldwide for low latency at low CPU overhead. The ADI does not use this driver on mac. Instead it uses Apple’s core audio driver class compliant. Apple’s own driver does not compete even close to the performance of the real RME one.

Always thought this was a bit odd given the ADI line on Windows can use RME’s own driver to access better performance.

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