[jeff c]

On Sep 10, 8:31 pm, wrote:
2K is where "Voice"

gets it's intelligibility.

Consonant sounds are up to 12K (for sibilance). In reinforcement I
often reduce 2 or 2.5 K to reduce harshness, while keeping everything
above 4K flat for intelligibility. 2K is the frequency at which the
human ear is most sensitive.

I said 2k as a generalization.... should have been 2k-8k maybeee...

12k is where extremely nellie boys, young girlz, and cymbals get their
intelligibility.... geeze, generate a 12k tone and listen to it....
Never had a problem with the bell sytems 200-4000 freq range on a
phone....not much sibilanssse but enough consonants to undersand what
is being said. I spent years with a third octave spectrum analyzer in
the 70-80s.... most stuff is getting rolled off at no more than 12k in
the real world... 20-20k is a big fat falshood perpetrated by stereo
marketers...when you dealing with the flethcher munson curve in the
response of the human ear...what does flat really mean??? Maybe one
day we will each get our own hemholtz resonator tuned for our tastes
and hearing ability...until then it's going to suck for some...

J