"Arny Krueger" wrote in message
...
: "Ruud Broens" wrote in message
:
:
: First: studio recording of acoustical instruments result
: in music registrations --what's your hangup with 'concert
: hall noise floor' as being in some way relevant with such
: a registration? Self-noise of competent microphones is
: below 20 dB SPL, eg. AT 3035 - a USD 200 job - states 12
: dB SPL eq. noise level
:
: While $200 will get you a mic with a 12 dB SPL noise figure,
: no amount of money will get you a concert hall with 100
: people in it that has a 12 dB SPL noise floor.

studio recording of acoustical instruments - doesn't read like
"concert hall with 100 people" agreed ?

: Close miking just about anything will quickly get you in the
: 110+ dB SPL range, so a 100 dB range is possible for sure.
:
: Ignorance of concert hall noise floors, particularly those
: with people, even just the musicians in them, noted.

studio recording of acoustical instruments - doesn't read like
"concert hall with 100 people" agreed ?
:
: Of course
: this also depends on the lowest acoustical level
: attainable from the instrument/environment . Directional
: microphones / noise gates, etc. are used to minimize
: mechanical noise, if necessary.
:
: The noise floor of a concert hall is usually quite
: pervasive. Furthermore, its pretty much guaranteed that the
: noisiest part of the room is where the people are, even if
: its just the musicians.
:
studio recording of acoustical instruments - doesn't read like
"concert hall with 100 people" agreed ?

: The master recording's dynamic range can, depending on
: composition, etc., very well be in excess of 90 dB.
:
: It just doesn't seem to happen.
:
: I believe it was DBX claiming a 100 dB requirement for
: the recording of acoustical instruments' performances.
:
: I guess you haven't figured out that vendor claims and the
: fact can be slightly divergent at times.
:
: A lot of recordings are said to be made without compression
: or gain riding, and I see no reason for so many people to
: lie about it. If you look at actual recording, the dynamic
: range pretty well peaks out below 75 dB.
:
: Second: many types of music don't use acoustical
: instruments, or exclusively so, yet also do not start out
: as amplified music, so another straw man there noted.
: Electronically generated signals can have pretty much a
: dynamic range that is limited by the electronics used,
: that is *well over 100 dB*.
:
: Again, your ignorance is showing. While electronic
: instruments may create sounds over 100 dB, their dynamic
: range is often quite less. I routinely record electronic
: keyboards for example. They often have noise floors that are
: only 60-70 dB down. Remember, they have analog circuitry in
: them as well, even if the notes are generated digitally.
:
physical modeling, eg. from applied acoustics systems, use
the available soundcard, calculated at 32 bit floating, up to 24
bit 192 kHz sample size, why would that 60-70 be the case, Arny ?
Kurzweil, Korg, Yamaha, Alesis, etc. keyboards of today all use
that or similar formats, not really comparable with stuff from the 70's.
...so who's the ignorant party here ?
R.