Microphones

Question 1

Transduce

Answer 1

acoustic energy to electrical energy - sound to signal

Question 2

Phantom power

Answer 2

power provided to through microphone cable to allow it to function

Question 3

name all Pickup patterns

Answer 3

Omnidirectional (all around )
Figure 8 (directly front and back equally like 8)
Cardioid (mostly in front)
Supercardioid (compared to cardioid more focused front with a bit at back)
Hypercardioid (compared to Supercardioid more focused front with a bit more at back)
Ultracardioid (compared to Hypercardioid more focused front with a bit more at back and sides)

Question 4

Frequency response

Answer 4

range of frequencies a microphone can reproduce at an equal level - allows adjustments to filter out low frequencies

Question 5

Capacitors

Answer 5

sensitive to SPL (sound pressure level) - expensive and fragile

Question 6

Dynamic microphone

Answer 6

less sensitive to SPL (sound pressure level) - less expensive and less fragile

Question 7

Self noise

Answer 7

inherent noise from the microphone

Question 8

Proximity effect

Answer 8

increase in low frequency sounds picked up due to how close the microphone is the the sound source -usually for cardioid microphones

Question 9

Inverse square law

Answer 9

strength of sound decrease by square of distance (from sound source) sound strength = 1/distance squared

Question 10

Types of microphones

Answer 10

Large/small diaphragm capacitor microphone
Handheld dynamic
Lavalier - small hideable
Shotgun - highly directional
Binaural - simulation of human hearing
Parabolic - long range recording
Stereo
Pressure Zone Microphone (PZM) - table mic
Sound field - all around recording - 4 rotating mics
Holophone - all around recording - 5 fixed mics