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Example 1: Using a control signal coming in on the input pin
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In this example, the control signal which we wish to delay at a lower sample rate is coming in on the layout’s input pin on channel 2 at 48 kHz with a block size of 32. Channel 1 carries the audio data which will have its gain adjusted by the delayed control signal.
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The total delay time includes the latency of the Buffering, Decimation, and Interpolation stages in addition to the Delay module itself.
View the accumulated delay by selecting View->Accumulated Delay.
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The accumulated delay in this example is 6591 samples @ 1500 Hz or 4.394 seconds.
Example 2: Using a control signal coming from a DC Source.
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This is very much like the first example, with the exception that we set the DC Source to run at 1500 Hz (input sample rate/input block size) with a Block Size of 1, so the first BlockStatistics module is not needed.
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Options and considerations:
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When using FIR interpolator, if the filter length is too short, you will see artifacts in the delayed control signal.
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