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RE: It’s not about averages, it about instantaneous. (nt)

I think I get it. Your current step from idle to peak represents the PS
response to the leading edge of a musical event, for example the attack of
a drum note (or a piano note for that matter).

I think this is an interesting parameter to look at and will probably add
it to my analysis regimen. But, the caveat is there is no DC in musical events. i.e...
There are certeinly asymmetric waveforms and big peaks, but immediately
following the drum attack, there is a negative peak of nearly similar
amplitude and equal "area under the curve". This tends to produce the
averaging behavior you claim it isn't about ;-) at least well within the
50mS interval of interest.

However, I agree that the response needs to settle very quickly,
much less than 50mS ideally, which eliminates (for me) the use of huge
capacitors as energy reservoirs. I like the approach of low DCR, fast
settling, relatively low storage PS filters because I believe that
approach has the leas impact on the dynamics of the amp than high storage
capacity, long settling filters.

It's also rather surprising how easy it is to get a ringing response if
you don't analyze the damping. The PSUD step function has taken a lot of
math out of the job.

Cheers,

Michael


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