Exam 1

Question 1

Microphone level

Answer 1

0.001V

Question 2

Line level

Answer 2

1V

Question 3

Speaker level

Answer 3

10V

Question 4

Amplitude

Answer 4

amount of displacement of the medium at any moment within each cycle of the waveform

Question 5

Period

Answer 5

The time it takes for two successive wave crests to pass a given point.

Question 6

Wavelength

Answer 6

The physical length of one cycle of a wave

Question 7

Frequency

Answer 7

the number of complete cycles a vibration or waveform makes in a second

Question 8

Phase

Answer 8

A measurement (expressed in degrees) of the time difference between two similar waveforms.

Question 9

Polarity

Answer 9

The direction of current flow or magnetizing force.

Question 10

Complex waves

Answer 10

a waveform consisting of a fundamental frequency and superimposed harmonics

Question 11

Noise floor

Answer 11

amplitude of device with no signal present

Question 12

Dynamic range

Answer 12

amplitude of nose floor to threshold of distortion

Question 13

Signal to noise ratio

Answer 13

The comparison of the strength of a signal level to the amount of noise emitted by the device, expressed in dB.

Question 14

Pressure transducers

Answer 14

A microphone where the diaphragm moves because of the pressure of the sound wave having one side of the diaphragm working against the normal or controlled air pressure inside the microphone case. carbon granule, piezoelectric, condenser, dynamic (moving coil)

Question 15

Velocity transducers

Answer 15

A microphone whose diaphragm is exposed front and back and diaphragm movement is caused by the pressure difference between its front and back. ribbon

Question 16

Dynamic (moving coil)

Answer 16

A microphone in which sound pressure waves are converted to an electrical audio signal by an induction coil moving within a magnetic field

Question 17

Dynamic (ribbon)

Answer 17

A microphone that converts sound waves to electrical current via a thin conductive ribbon set between magnetic poles.

Question 18

Condenser

Answer 18

A microphone in which sound is converted into electrical current through changes in a capacitor. The sound pressure waves move the diaphragm, producing changes in capacitance which are then changed into electrical voltage.

Question 19

Phantom power

Answer 19

A system used to supply DC voltage to condenser mics and other components through the audio cables, eliminating the need for external power supplies.

Question 20

Polar pattern

Answer 20

a graphic display of the area around the microphone that is sensitive to sound waves, detailing the audio output levels in dB of sound arriving from different directions

Question 21

Multitracking

Answer 21

is process of recording a collective of sound sources onto separate tracks, each with its own audio channel, then combining the tracks to play back simultaneously.

Question 22

Overdubbing

Answer 22

The process of recording an additional musical performance over an existing recording

Question 23

Sensitivity

Answer 23

the amount of output that a microphone can produce from a standard level of sound, as compared to the output of another microphone from the same sound level.

Question 24

Mixdown

Answer 24

The processes of creating a final mix by combining multiple audio tracks into a single track