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Acoustics FAQ



Frequently Asked Questions about Acoustics

This FAQ about Acoustics was compiled and written by Andrew Silverman with numerous contributions by others.

DISCLAIMER - NO WARRANTY OF ANY KIND WHATSOEVER IS MADE FOR THE FITNESS OF THE CONTENTS OF THIS FAQ.

Aims

  • To make acoustics accessible to a wider public
  • To encourage cooperation within the acoustics community

Part I: Resource Pointers

-1.1 What acoustic related news groups and FAQs are there ?
acoustics FAQ: What acoustic related news groups and FAQs are there ?
-1.2 What World Wide Web sites are there ?
acoustics FAQ: What World Wide Web sites are there ?
-1.3 What acoustics software is available on the Net ?
acoustics FAQ: What acoustics software is available on the Net ?
-1.4 What acoustics books and journals are there ?
acoustics FAQ: What acoustics books and journals are there ?

Part II: Basic Acoustics

-2.1 What is sound ?
acoustics FAQ: What is sound ?
-2.2 What is a decibel (dB) ?
acoustics FAQ: What is a decibel (dB) ?
-2.3 How is sound measured ?
acoustics FAQ: How is sound measured ?
-2.4 What does dB(A) or "A-weighted" mean ?
acoustics FAQ: What does dB(A) or
-2.5 How do sound levels add ?
acoustics FAQ: How do sound levels add ?
-2.6 How does the ear work ?
acoustics FAQ: How does the ear work ?
-2.7 At what level does sound become unsafe ?
acoustics FAQ: At what level does sound become unsafe ?
-2.8 What is sound intensity ?
acoustics FAQ: What is sound intensity ?
-2.9 How does sound decay with distance ?
acoustics FAQ: How does sound decay with distance ?
-2.10 What is the sound power level ?
acoustics FAQ: What is the sound power level ?
-2.11 What is the speed of sound in air, water .. ?
acoustics FAQ: What is the speed of sound in air, water .. ?
-2.12 What is meant by loudness?
acoustics FAQ: What is meant by loudness?

Part III: Vibration

-3.1 What is vibration ?
acoustics FAQ: What is vibration ?
-3.2 How is vibration measured ?
acoustics FAQ: How is vibration measured ?
-3.3 How is vibration isolated and controlled ?
acoustics FAQ: How is vibration isolated and controlled ?

Part IV: Architectural & Building Acoustics

-4.1 What is reverberation time ?
acoustics FAQ: What is reverberation time ?
-4.2 What is the sound absorption coefficient ?
acoustics FAQ: What is the sound absorption coefficient ?
-4.3 What is the difference between insulation & absorption ?
acoustics FAQ: What is the difference between insulation & absorption ?
-4.4 How is sound insulation measured ?
acoustics FAQ: How is sound insulation measured ?
-4.5 How do I improve the noise insulation of my house/dwelling?
acoustics FAQ: How do I improve the noise insulation of my house/dwelling?

Part V: Miscellaneous Questions

-6.10 What is the doppler effect ?
acoustics FAQ: What is the doppler effect ?
-6.11 What is white noise, pink noise ?
acoustics FAQ: What is white noise, pink noise ?
-6.1 What is active noise control ?
acoustics FAQ: What is active noise control ?
-6.2 What causes a sonic boom ?
acoustics FAQ: What causes a sonic boom ?
-6.3 Can you focus sound ?
acoustics FAQ: Can you focus sound ?
-6.4 What is sonoluminescence ?
acoustics FAQ: What is sonoluminescence ?
-6.5 Why does blowing over a bottle make a note ?
acoustics FAQ: Why does blowing over a bottle make a note ?
-6.6 What is pitch ?
acoustics FAQ: What is pitch ?
-6.7 What are musical intervals ?
acoustics FAQ: What are musical intervals ?
-6.8 What causes "helium voice" ?
acoustics FAQ: What causes
-6.9 What is structural acoustics ?
acoustics FAQ: What is structural acoustics ?

Part VI: Appendices

-7.0 Index
acoustics FAQ: Index
-8.1 Formula for A weighting
acoustics FAQ: Formula for A weighting
-9.0 List of National Acoustical Societies
acoustics FAQ: List of National Acoustical Societies









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