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Active Noise Control FAQ



Frequently Asked Questions: Active noise control

The FAQ you are now reading discusses active noise control, a novel way of using basic physics to control noise and/or vibration. What is an FAQ, you say? Well, the Internet supports thousands of "newsgroups" -- discussion forums covering every imaginable topic. An FAQ (Frequently Asked Questions list) is a summary written to answer specific questions that arise repeatedly in the newsgroups. This particular FAQ was written for the newsgroups news:alt.sci.physics.acoustics and news:comp.dsp, which focus on acoustics and digital signal processing, respectively. This FAQ has four purposes:

  • Provide concise, accurate answers to common questions about active noise control.
  • Dispel popular misconceptions about what active noise control can and cannot do.
  • Refer interested readers to web links, magazine articles, technical references, and other sources of information.
  • Stimulate public interest in acoustics.

Part I: Introduction

-1.1. What's new in the Active Control FAQ
alt.sci.physics.acoustics FAQ: . What's new in the Active Control FAQ
-1.2. Finding the most recent FAQ
alt.sci.physics.acoustics FAQ: . Finding the most recent FAQ
-1.3. Contributors.
alt.sci.physics.acoustics FAQ: . Contributors.
-1.4. Administrative trivia
alt.sci.physics.acoustics FAQ: . Administrative trivia
-1.5. Basics: what is sound? Frequency? Wavelength?
alt.sci.physics.acoustics FAQ: . Basics: what is sound? Frequency? Wavelength?

Part II: General discussion of active control

-2.1. What is active control of noise/vibration?
alt.sci.physics.acoustics FAQ: . What is active control of noise/vibration?
-2.2. Is active control new?
alt.sci.physics.acoustics FAQ: . Is active control new?
-2.3. Are there different kinds of active control?
alt.sci.physics.acoustics FAQ: . Are there different kinds of active control?
-2.4. Is active noise control like noise masking?
alt.sci.physics.acoustics FAQ: . Is active noise control like noise masking?
-2.5. How can adding sound make a system quieter?
alt.sci.physics.acoustics FAQ: . How can adding sound make a system quieter?
-2.6. When does active control work best?
alt.sci.physics.acoustics FAQ: . When does active control work best?
-2.7. What is adaptive active control?
alt.sci.physics.acoustics FAQ: . What is adaptive active control?
-2.8. What are some typical applications?
alt.sci.physics.acoustics FAQ: . What are some typical applications?
-2.9. Are all 'active headphones' the same?
alt.sci.physics.acoustics FAQ: . Are all 'active headphones' the same?
-2.10. What are the benefits of active control?
alt.sci.physics.acoustics FAQ: . What are the benefits of active control?
-2.11. What was that short story by Arthur C. Clarke?
alt.sci.physics.acoustics FAQ: . What was that short story by Arthur C. Clarke?
-2.12. How can I do a simple, inexpensive active control demo?
alt.sci.physics.acoustics FAQ: . How can I do a simple, inexpensive active control demo?

Part III: Finding more information

-3.1. What is the active control newsletter?
alt.sci.physics.acoustics FAQ: . What is the active control newsletter?
-3.2. What companies produce active control products?
alt.sci.physics.acoustics FAQ: . What companies produce active control products?
-3.3. What universities teach active noise control?
alt.sci.physics.acoustics FAQ: . What universities teach active noise control?
-3.4. How can I learn more via Internet?
alt.sci.physics.acoustics FAQ: . How can I learn more via Internet?
-3.5. Are there short courses about active control?
alt.sci.physics.acoustics FAQ: . Are there short courses about active control?
-3.6. References from the general literature
alt.sci.physics.acoustics FAQ: . References from the general literature
-3.7. References from the technical literature
alt.sci.physics.acoustics FAQ: . References from the technical literature









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