SkillsUSA Audio/Radio Exam

Transducers

What converts electrical energy into acoustic energy and acoustic energy into electrical energy?

48 volts

Standard phantom power is how many volts?

At most commas, and at all semicolons and periods

When do you break in a script?

Transducer; (a)

Which of the following is not a type of microphone?
(a) transducer
(b) ribbon
(c) dynamic
(d) condenser

Condenser

Which type of microphone requires the use of phantom power?

Tip

The triangular bit at the far end of the connector is called what?

XLR

What type of connector is featured in the picture?

3

How many conductors does a balanced cable typically have?

2

How many conductors does an unbalanced cable typically have?

Basic communication skill

Personality is considered to be a ____________________.

Connector

Which of the following is found on the end of a cable?
(a) adapter
(b) connector
(c) pad/attenuator
(d) barrel

Pad; attenuator

Which of the following lowers the level of a signal?
(a) adapter
(b) connector
(c) pad/attenuator
(d) barrel

Dynamic process (?)

Radio is a ____________.

Air pressure

Sound can be defined as changes in what?

Amplitude

What does the height of a sound wave indicate when charted on a graph?

20 Hz to 20 kHz

The average human ear can hear between what frequencies?

60 Hz

AC (or electrical hum) generally occurs at what frequency in the U.S.?

+4 dBu

What is the Professional Line Level Signal?

-10 dBV

What is the Consumer (or Non-Professional) Line Level Signal?

Low frequency/bass

On the frequency spectrum, what is 100 Hz considered?

3 dB

To double the volume of a sound, you must increase it by how much?

Bi-directional

The polar pattern featured in the picture is known as what?

Hertz; Hz

What are audio frequencies measured in?

A sponsor

Stop sets should include _____________.

1,100 feet per second

What is the approximated speed of sound?

Bit depth = 16 bits; Sample rate = 44.1 kHz

What is the bit depth and sample rate for standard CD audio?

Digital audio workstation

What does DAW stand for?

Gate; (c)

Which of the following signal processors would you use to stop unwanted background noise below a specific level in your file?
(a) compressor
(b) normalizer
(c) gate
(d) graphic EQ

Compressor; (a)

Which of the following signal processors would you use to make your file sound louder without
directly affecting or altering frequencies?

Give a call to action

In the format of a commercial, one should ______________________.