Acoustics

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Acoustics (from Greek ακουστικός pronounced akoustikos meaning "of or for hearing, ready to hear") is the science that studies sound, in particular its production, transmission, and effects. Sound can often be considered as something pleasant; an example of this would be music. In that case a main application is room acoustics, since the purpose of room acoustical design and optimisation is to make a room sound as good as possible. But some noises can also be unpleasant and make people feel uncomfortable. In fact noise reduction is a major challenge, particularly within the transportation industry as people are becoming more and more demanding. Furthermore ultrasounds also have applications in detection, such as sonar systems or non-destructive material testing. The articles in this Wikibook describe the fundamentals of acoustics and some of the major applications.

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Fundamentals

1. Fundamentals of Acoustics
2. Fundamentals of Room Acoustics
3. Fundamentals of Psychoacoustics
4. Sound Speed
5. Filter Design and Implementation
6. Flow-induced oscillations of a Helmholtz resonator
7. Active Control

Applications

Applications in Transport Industry

1. Rotor Stator interactions
2. Car Mufflers
3. Sonic Boom
4. Sonar
5. Interior Sound Transmission

Applications in Room Acoustics

1. Anechoic and reverberation rooms
2. Basic Room Acoustic Treatments

Applications in Psychoacoustics

1. Human Vocal Fold
2. Threshold of Hearing/Pain

Musical Acoustics Applications

1. How an Acoustic Guitar Works
2. Basic Acoustics of the Marimba
3. Bessel Functions and the Kettledrum
4. Acoustics in Violins
5. Microphone Technique
6. Microphone Design and Operation
7. Acoustic Loudspeaker
8. Sealed Box Subwoofer Design

Miscellaneous Applications

1. Bass-Reflex Enclosure Design
2. Polymer-Film Acoustic Filters
3. Noise in Hydraulic Systems
4. Noise from Cooling Fans
5. Piezoelectric Transducers