1 Topic by Potscrubber (edited by Potscrubber 2017-04-12 03:03:54)

  • From: Aotearoa
  • Registered: 2007-10-23
  • Posts: 255

Topic: Theoretical A/D/A latency

Hi there

I'm trying to work out my theoretical A to D latency at 96Khz with Micstasy input, cue mix in TMFX in Madiface XT (no DAW), and ADI8QS output.

Micstasy ADC = 9 samples in double speed
+ADI8QS DAC = 5 samples in double speed
+ 18 samples MADI card delay compensation at double speed
+ 15 samples for five devices (3 x Micstasy, 1 x ADI8QS, 1 x MF XT). From the manual: "RME's digital receiver's buffer and the out-put via the transmitter cause a typical delay of 3 samples."

So in total about 47 samples, 49 milliseconds, 0.049 seconds at 96Khz

If I've forgotten something or gone wrong somewhere, I'd appreciate being corrected.

Thanks!

Madiface XT, Madiface, 3x Micstasy, ADI8QS
Sequoia 17, W10 x64
https://bsound.co.nz/tools-nix

2 Reply by Potscrubber (edited by Potscrubber 2017-04-12 03:03:08)

  • From: Aotearoa
  • Registered: 2007-10-23
  • Posts: 255

Re: Theoretical A/D/A latency

FWIW I measured the total delay in the path described below with Smaart Live as 0.57ms at 96K, and 1.04ms at 48K.
Vs my estimated figure of 0.49ms at 96K from reading the docs.  This discrepency is outrageous and I demand an explanation!  lol

Edit:  I also measured by recording in Sequoia and measuring samples.  Here I got 54 samples at 96K, which is 0.56ms.



Potscrubber wrote:

Hi there

I'm trying to work out my theoretical A to D latency at 96Khz with Micstasy input, cue mix in TMFX in Madiface XT (no DAW), and ADI8QS output.

Micstasy ADC = 9 samples in double speed
+ADI8QS DAC = 5 samples in double speed
+ 18 samples MADI card delay compensation at double speed
+ 15 samples for five devices (3 x Micstasy, 1 x ADI8QS, 1 x MF XT). From the manual: "RME's digital receiver's buffer and the out-put via the transmitter cause a typical delay of 3 samples."

So in total about 47 samples, 49 milliseconds, 0.049 seconds at 96Khz

If I've forgotten something or gone wrong somewhere, I'd appreciate being corrected.

Thanks!

Madiface XT, Madiface, 3x Micstasy, ADI8QS
Sequoia 17, W10 x64
https://bsound.co.nz/tools-nix