On 2005-08-01, 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?

I don't think you need to bring in compressor time constants into the
reasoning [1].

If the top level signals are compressed at all, by any means, that will
(I assume) lead to a perceived reduction in average level. If so,
restoring the perceived level to that of the uncompressed signal will
mean the lower level signals will be higher (and perceived as such).


[1] If so, at least the attack time constant needs to be very short to
prevent over-deviation.

--
John Phillips