Acoustics

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Chapter Nine

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Central topic

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ProtocolBuffers

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Laura Secord Sound System Set up Jake Hagan

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Acoustics

Digital sound

Window size

Compression

Containers

Bit rate

Sampling rate

Sampling theorem

Nyquist frequency

Digitization

DAC

ADC

Electro-acoustics

Speakers

Actuators

Headphones

Loudspeakers

Microphones

Contact

Condenser

Dynamic

Instrument acoustics

Organology

Frequency range

Instruments

Room acoustics

Reverberation

T60

Sound alterations

Absorption

Diffusion

Diffraction

Reflection

Materials

Modes

Flutter echo

Standing waves

Online calculator

Room size and shape

Fundamental concepts

Speed of sound

Iron

5120 m/s

Water

1481 m/s

Air

343 m/s

Sound pressure level

3dB rule

Perceived as twice as loud

Inverse-square-law

decibel = dB

Time vs frequency domain

Fourier transform

Beating waves

Glicol

Complex waves

Phase

Frequency

Hertz = Hz

Sound waves

Vibrations

Evelyn Glennie

Definitions

Cause and effect

ANSI/ASA S1.1-2013

(b) Those qualities of a room that, together, determine its character with respect to auditory effects.

(a) Science of sound, including its production, transmission, and effects, including biological and psychological effects

ἀκουστικός (akoustikos): "of or for hearing, ready to hear"

Types of acoustics