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John Baylies

Here are some details on what the H9000's latency depends on:

1) What IO you are using

  • Using analog IO will add about 1ms of latency due to the converters.
  • Digital IO will have much lower latency, probably a sample or two.
  • Network audio will add some latency.  For Dante, this is configurable.
  • There is an additional but very small latency due to the internal H9000 audio router, which is 3 samples in and 3 samples out, so a total of 6 samples, or 0.125ms at 48k.

2) The structure of the FX Chain that you are running audio through

  • A single algorithm FX chain, or an FX chain in which the algorithms are in parallel, will add about 1.3ms of buffering latency.  Each additional series algorithm will add another 0.7ms of buffering latency.  So four algorithms in series will add about 3.3ms.
  • The internal FX chain routing compensates for buffering latency, so you will not hear comb-filtering artifacts due to running e.g. 2 series algorithms in parallel with one.

3) Whether any of the algorithms add latency as part of the processing (e.g. a lookahead limiter).

  • We don't currently have information on the processing latency added by the algorithms.
  • In many cases it will be zero.
  • Reporting and compensating for processing latency where necessary is something we'll consider implementing in future software versions.

Keep in mind that the H9000 does not have any microphone or Hi-Z inputs.