sound info

analog- before 1976 everything was. 3 mics- dynamic, ribbon, condensor. a mic is a tranducer- device that changes one form of energy into another.  dyamic mic- moving coil. ribbon mic
condensor- wide, smooth freqency response detaild sound, extended highs.omin type has excellent low freq response, transiet attacks sound sharp and clear. preferred for acoustic, cymbals, studio vocals.can be miniaturized
dyname- rough response, rugged, handles heat cold humidity, handles high volume  w o distortion, prerred for amps/ drums. can take edge off woodwinds and brass. ribbons- warm, smoothe. delicate. complements digital recording. preferred for horns and guitar amps.
omnidirection mic- sensitive to sounds from all directions
unidirectional - coming from one direction in front of mic- soften sounds from sides or rear
bidirectional- sensitive to sounds from 2 directions but rejects entering from side.
cardioid, supercardioid, hypercardioid
omni- all around pickup not much isolation unless you mike close, low sensititivity to pops
low handling noise, no up close bass boost
most instruments 80hz to 15 khz
bass 40 hz to 9 khz
brass and voice 80 hz to 12 khz
piano 40 hz to 12 khz
cymbals and some perc 300 hz to 15 or 20 khz
orch symph 40 hz to 15 khz
low impedance- long cables wo pickup hum
spl sound pressure level
polarity
large diaphagm condensor mics
akg c12vr, perception 100
higher bit depth and sample rate=higher sound quality