Hi Frank,
the solution Werner solved is working the same way. The multiplier and delta gets computed once when receiving all necessary data. For each sample you then only have to run one multiplication and one addition plus reassignment. The math behind it looks a bit complicated but for very long (envelope) phases you might need to update the current value manually because floating errors will add up. There is Java code at the end of the article which should be easily portable to any other language. We are heavily make use of this code in many devices in our online DAW. Greetings ~ André https://www.audiotool.com <https://www.audiotool.com/> > The solution I hit upon to generate coefficients "multiplier" and "delta" for > the sample-by-sample calculation > current = previous * multiplier + delta > was to do the following calculations ONCE, AT INITIALIZATION TIME:
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