What are the differences between the different types of envelope follower algorithms?

Envelope Peak - Tracks the absolute peak value of the signal. This will update every sample.

Signal Envelope - The mean value of the signal (averaged over many samples, as determined by the time constant control) squared. The output can be connected to a square root cell for true RMS, although this is very expensive in terms of DSP processing.

Running Average - An approximation of RMS that calculates the average value of the input signal. This is much less expensive than a true RMS implementation and it is fairly accurate.

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