In article .com,
Robert
wrote:
"I am sure such moderate compression on FM is euphonic in that it raises
the level of the decay of notes and the level of ambience, leading to a
greater impression of presence.. "

But for the reverberation decay (if that's what you refer to) to be
affected by the compression that would mean the compression was acting
with a timescale similar the reverberation time of the hall - typically
a few seconds. Surely the compression has a timescale of many tens of
seconds does it not?

Not necessarily. When I did some comparisons of DAB with FM a few years
ago, there were signs of rapid gain adjustments to lower the levels of
transients w.r.t. the sustain. Hence the level compression may be over
timescales from much less than a second, upwards.

Also, my impression was that it is the transient/sustain of the
instrumental sound that is being adjusted, not just the direct/reverberant
ratio. So it may be the decay characteristics of the instrument that
matter. However I'm hoping to re-investigate this soon - hence starting
this thread. :-)

Slainte,

Jim

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