sound final

What is a transducer?

A device that converts one type of energy to another.

What unit of measure represents the amount of power produced by a sound system?

Watts.

What unit of measure represents the amount of power needed to power a sound system?

Amps.

What is the standard municipal supply power unit outside the US?

Direct Current (DC).

What is the standard municipal supply power unit inside the US?

Alternating Current (AC).

Resistance is measured in what unit?

Ohms.

What unit measures sound levels?

Decibels.

What device can decrease/increase a current's voltage depending on its application?

Transformers.

A condenser mic is low impedance, true or false?

True.

An electric guitar is low impedance, true or false?

False.

What electronic component helps to regulate spikes in a current?

Resistor.

What substance allows something to flow through it?

Conductor.

What information do audio equipment manufacturers use as their baseline for product development?

Range of human hearing.

The widely accepted standard for the pin with a 3 conductor wire is?

Two pin hot.

A direct injection box is often used to capture?

Unbalanced signals from a musical instrument.

How many samples are taken a second with a sample rate of 192K?

192,000.

What process uses small amounts of noise to improve the recording process?

Dithering.

Pin 1 on an XLR is used for what?

Ground.

Sound reinforcement is used for what application?

Live sound.

What device is used to connect one device to any other device?

Patchbay.

The speakers facing the audio are typically called the?

Front of House / Mains.

Subs are usually a component of what speaker array?

Front of House / Mains.

Small speakers placed around the speakers to provide specific sound direction are called?

Specials.

The speakers for performers to hear themselves are called?

Monitors.

Speakers used for the closest part of the audience are called?

Front fills.

Condenser mics require what?

Phantom power.

Typically distant micing techniques are used to capture what?

Large ensembles.

In a TRS cable, which pin is usually the ground?

1 pin.

Put these in order: stage box, mic, mixer, speaker, amp.

Correct setup: mic -> stage box → mixer → amp → speaker.

Signal to noise ratio represents what?

The relationship of noise to the desired sound.

Which material is the most absorptive?

Fabric covered fiberglass.

What material is the most reflective?

Glass paneling.

What effect does a negative reflect on sound?

Reflects it.

What effect does an anechoic chamber have on sound?

Absorbs it.

When a mono signal is mixed with an identical mono signal but 180 degrees out of phase?

It cancels out completely.

When a mono signal is mixed with an identical mono signal in phase?

It increases by 6db.

If you surpass 0dbs in an analog signal, what will you have?

Harmonic distortion.

What is the precedence effect?

We base the direction of sound on which ear hears it first.

What is the Fletcher-Munson curve?

It shows how we perceive different frequencies at different volumes.

Tinning in electronics describes what?

Adding solder before conjoining two parts.

When you combine pins 1 and 3 of a connector, what are you creating?

An unbalanced signal.

What effect does a diffuser have?

Distributes sound equally.

What effect would sound have on a skyline diffuser?

Spreads it out randomly.

What effect does a quadratic diffuser have in a space?

Evenly distributes sound.

What kind of signal is designed to block electrical current?

Insulator.

Which audio engineer has control of the sound that reaches the audio members?

FoH Engineer.

Which engineer decides what effects the process on a recording?

Mix engineer.

Which engineer decides which mics to use in a recording?

Tracking engineer.

Which engineer adjusts the final volume of the project?

Mastering engineer.

What engineer adjusts the playback level of the performers?

Monitor engineer.