uw3

UW Course Outline
Microphones

London Bridge Studios Past Session Downloads

UWCLASS DAY1_16_LBS
UWCLASS DAY2_16_LBS

A. The Transducer

1. The overall sound of an audio signal will be no better than the “weakest link” in its signal path.
2. The “psychology” of microphone pickups
– There is a psychology but there are no rules
– The “Good Principle”

B. Microphone Design

1. Dynamic
– Magnetic Principles of operation
– Whenever metal cuts across a magnetic field, a current (of a specific intensity and direction) is “induced” into the metal… conversely, whenever a current is introduced into metal a magnetic field (of a specific intensity and direction) will be set up.
2. Ribbon

3. Condenser

– Q=CV
– powered condenser
– electret

3. Microphone characteristics
– directionality
– omni
– cardioid
– figure 8 (bi-directional)
– frequency response
– to EQ, or not to EQ… chosing the right mic
– proximity effect
– rumble (p.108)
– transient response
– pop-filtering
– wind screen
– popper-stoppers (stocking stuffers)
– output characteristics
– sensitivity/noise
– overload capacity
– input trim/padding
– impedance (resistance)
– mics are ~200
– lines are high Z
– balanced lines
– advantages
– phantom powering
– unbalanced

C. Professional Microphone Techniques Book

1. group discussion – Talk about some of your favorite mics and techniques

D. Microphone Techniques

1. Really, folks, it’s mostly a matter of common sense
– Stick to MRT-6 so as not to go over (pp. 118-148)

2. Working Distances (PP. 113-121)
– distant
– close
– accent
– ambient
– general ideas about “workin the room”

3. Stereo Techniques
– XY
– Blumlein
– MS
– MS
– hardware matrix
– plug-in matrix

4. Surround Techniques

5. Recording Direct
– DI Box
– Mixing the signals (surround)

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