Welcome, Guest
Username: Password: Remember me

NOTE: This is a "Community" forum. Please be mindful that community members are here to help as part of a community effort. We therefore appreciate your effort in keeping this forum a happy place!

If you have a specific issue (e.g. hardware, failure) and want help from our support team, please use our tech support portal (Support menu - > Contact Us).
Thanks a lot of your help in making a better community.
  • Page:
  • 1

TOPIC:

DDRC-88D vs 88A latency and quality 1 year 1 month ago #50714

  • mch42
  • mch42's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 5
  • Thank you received: 0
Hi

Has any by chance measured the actual latency of 88A vs 88D?

In the D, I assume some latency is added by double ASRC (both input and output are resampled). While in the 88A, the converters probably add a bit of latency. (Yes, we're talking <1ms probably, but for recording purposes I'm chasing the absolute minimum..

Same question goes for sound quality: which one has more impact on sound quality: double ASRC processing in the 88D vs the sound quality of the converters in the 88A?

Please Log in or Create an account to join the conversation.

DDRC-88D vs 88A latency and quality 1 year 2 weeks ago #51114

  • slm3654
  • slm3654's Avatar
  • Offline
  • New Member
  • New Member
  • Posts: 7
  • Thank you received: 6
Can't help with the "D" model but here are some measurements I did on the "A" model:

Analog input to output mean delay with Dirac off: 18.20msec. / with Dirac on but not programmed: 19.24msec.
Analog input to output jitter (1 sigma): 194.84nsec (bimodal)
Analog output 1 to output 2 jitter with both channels fed with the same signal (1 sigma): 19.55nsec. (gaussian)

I have the graphs for this if you are interested.

Steve

Please Log in or Create an account to join the conversation.

  • Page:
  • 1
Moderators: devteam