At 16:02 01-05-13, Fons Adriaensen wrote:

>The difficult part in writing any software emulation of the Dolby-A
>or similar systems is modelling the dynamic behaviour of the compander,
>not the actual audio processing. Such systems will have 'designed' and
>documented attack/release times, but analog electronics being what they
>are, the dynamic behaviour of the compressors and expanders will very
>probably not fit to any simple equations. Nor does it have to: the way
>Dolby-A and Telcom switch between encoding and decoding (by making the
>decoding algorithm the mirror image of the encoding) guarantees that
>the two will cancel each other, whatever they are.

So, analog still rules!

David

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