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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