Audio

Question 1

What is an Audio Source?

Answer 1

The Audio Source plays back an Audio Clip in the scene

Question 2

Where/How can an Audio Clip be played?

Answer 2

The Audio Clip can be played to an Audio Listener Or Through an Audio Mixer.

Question 3

What can an Audio Source play?

Answer 3

An Audio Source can play any type of Audio Clip and be configured to play these as:
2D, 3D or as a mixture (Spacial Blend)

Question 4

How is the Audio Spread out?

Answer 4

The Audio can be spread out between speakers (Stereo to 7.1) and morphed between 2D and 3D (Spacial Blend)

Question 5

How can Audio be controlled?

Answer 5

Audio can be controlled over distance with falloff curves

Question 6

Audio Listener and reverbs

Answer 6

The Audio Listener is within one or multiple Reverb Zones. Reverberations are applied to the source.

Question 7

Audio Filters

Answer 7

Individual filters can be applied to each Audio Source for an even richer Audio experience.

Question 8

Types of Audio Clips and effects

Answer 8

Audio Properties
Control Audio
Enable Audio
Manage Audio

Question 9

Audio Effects

Answer 9

Audio Effects can be applied to the Audio Mixer to modify the Mixers output. The Effects are applied using/adding effect components.

Question 10

Effect Components

Answer 10

The order of the components reflects the order the effects will be applied to the Audio Source.
Applyin audio effects to the audio mixer modifies its output

Question 11

What does a reverb zone do

Answer 11

Reverb Zones take an Audio Clip and distorts it depending on where the audio listener is located in the reverb zone

Question 12

Min-Distance…

Answer 12

Min represents the radius of the inner circle in the gizmo. This determines the zone where there is a gradual reverb effect and a full reverb zone.

Question 13

Max-Distance

Answer 13

Max represents the radius of the outer circle in the gizmo. This determines the zone where there is no effect and where the reverb starts to get applied gradually.

Question 14

Reverb preset

Answer 14

Reverb presets determine the reverb effect that will be used in the reverb zone.

Question 15

Reverb Zones

Answer 15

No reverb, Gradient reverb(max to min) , Full reverb(min)

You can mix Reverb Zones to create combined effects.

Question 16

What is the Doppler effect

Answer 16

The Doppler effect occurs when there is an Audio source that is moving towards (or moving away from) us in real life.
Everything that produces sound creates sound waves, which takes time in order to reach us.
If an object is moving towards you the sound waves are going to be more compressed, which results in a higher pitch sound.
When that object passes you, the pitch goes down as the sound waves are more stretched out.

Question 17

Audio Compression Formats enum

Answer 17

An enum containing different compression types

This enum is used within the Audio Importer to define what type of compression will be used for an imported Audio Clip

Question 18

AudioCompressionFormat Properties
PCM, Uncompressed
Compressed
ADPCM
VORBIS
MP3
XMA. Xbox sound format
GCADPCM. Nintendo audio format

Answer 18

PCM, Uncompressed pulse code modulation
Vorbis, Vorbis compression format
ADPCM, Adaptive differential pulse code modulation
MP3, MPEG Audio Layer 3
VAG, Sony property hardware format
HEVAG, Sony proprietary hardware codec
XMA, Xbox One proprietary hardware format
AAC, AAC audio compression
GCADPCM, Nintendo ADPCM audio compression format
ATRAC9, Sony proprietary hardware format

Question 19

Audio Mixer

A Singleton

Answer 19

Audio Mixer asset

This is a Singleton representing a specific audio mixer asset in the project

Question 20

Audio Properties

Answer 20

Output AudioMixerGroup, Routing target.

UpdateMode, How time should progress for this Audio Mixer. Used during Snapshot transitions.

Question 21

Standard audio compression formats
Audio Codec examples
PCM is the only lossless compression format. The rest are Lossy compression formats

Answer 21

Pcm. Pulse Code Modulation. Lossless, Uncompressed. Best for audio.
AdPcm. Adaptive Differential Pulse Code Modulation. 3.5x smaller Than PCM.
Vorbis. Compressed, small file size, reduced quality
Mp3 is also available for mobile. Compressed, small file size, reduced quality.
AAC. IOS format

Question 22

Sony Proprietary format

Lossy Compression Format

Answer 22

VAG
HEVAG
ATRAC9
XMA(XBOX)
GCADPCM(NINTENDO)

Question 23

For best sound quality in unity

Uncompressed format such as WAV or AIFF, containing PCM and let unity do the encoding

Answer 23

MAS or PC platforms
Ogg Vorbis. Vorbis comes with a slider which allows you to choose the quality, and size of your audio. The lower quality the lower size