Audio 2

Front 1

Microphone

Back 1

Used to pick up acoustic vibrations and convert them into low level electrical signal. Types include: dynamic, condenser and ribbon.

Front 2

Condenser Mic

Back 2

Microphone consisting of a capacitor with one single plate fixed and the other forming the diaphragm moved by sound waves 🌊. Needs phantom power.

Front 3

Dynamic Mic

Back 3

Moving coil microphone using the same dynamic principles as in a loudspeaker 📢, only reversed. Does not need phantom power.

Front 4

Ribbon Microphone 🎙

Back 4

A type of 🎤 that uses a thin, electrically conductive ribbon (made of aluminium, duralumin, or nanofilm) placed between the poles of a magnet 🧲 to generate voltage by electromagnetic induction. Ribbon mics are bi-directional, meaning that they pick up sounds equally from either side of the microphone.

Front 5

Cardiod Microphone

Back 5

The most common unidirectional mic is a cardioid microphone, so named because the sensitivity pattern is a cardioid.

Front 6

Hyper Cardioid Mic

Back 6

Better quality on a zero access than a traditional cardioid. Rejects more sound from other directions. Greater front directionality. Styles include shotgun or rifle mic, mostly used in film.

Front 7

Polar Patterns

Back 7

The polar pattern shows the variation in sensitivity 360 degrees around the microphone, assuming that the microphone is in the Center and 0 degrees, 90 degrees, 180 degrees, and 270 degrees Omni, cardioid, bi-polar, hyper-cardioid.

Front 8

Polar Patterns

Back 8

The polar pattern shows the variation in sensitivity 360 degrees around the microphone, assuming that the microphone is in the Center and 0 degrees, 90 degrees, 180 degrees, and 270 degrees Omni, cardioid, bi-polar, hyper-cardioid.

Front 9

Omnidirectional

Back 9

Picks up sound waves equally from all directions.

Front 10

Sound Wave

Back 10

Physical energy propagated by air or by some other medium.

Front 11

Speed of Sound

Back 11

1130 feet per second.

Front 12

Wave Length

Back 12

1130 feet / frequency = wave 🌊 length.

Front 13

Delay

Back 13

Used to compensate for the speed of sound in air.

Front 14

How a Sound System Operates:

Back 14

A sound system handles sound 🌊, converts them into electrical current and manipulates them as desired, them converts them back into sound waves 🌊.

Front 15

Basic Sound System

Back 15

Back (Definition)

Front 16

Speaker

Back 16

Used to convert an electrical signal into acoustic audio vibrations which can be picked up by the human ear 👂. Types include passive and active. Passive requires an amplifier and a crossover.

Front 17

Woofer

Back 17

A loudspeaker designed for the reproduction of low frequency sounds.

Front 18

Midrange

Back 18

A loudspeaker 📢 that produces the frequency range of 300-5,000 hertz is known as a midrange. They are also called, less commonly, squawkers.

Front 19

Tweeter

Back 19

Is a loudspeaker designed to produce high frequencies. Ex: Dynamic, condenser, ribbon, compression driver, horn, piston and dome tweeters.

Front 20

Mixing Console

Back 20

Routes audio signals from inputs to the output transducers. Ex: analog, digital, powered, automated, non-automated, small format, large format.