2. Applications
2.1 Active noise-canceling headphones
Conventional noise-canceling headphones, which are effective at medium and high frequencies, do little to protect the wearer from low-frequency noise, as the thickness of the shells becomes too small for the wavelength. To improve their effectiveness at low frequencies, it was thought early on to use active control, since a single muted point in the helmet shell is enough to reduce noise in the ear canal. The first attempts to develop active noise-cancelling headphones date back to the 1950s, with work by Olson, Simshauser and Hawley
The Ultimate Scientific and Technical Reference
This article is included in
Noise and vibration
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Applications
Psychoacoustic aspects of active control
Bibliography
Norms and Standards
(non-exhaustive list)
- Acoustics – Isosonic level calculation method – Part 1: Zwicker method. ISO - ISO 532-1 - 2017
- Acoustics – Normal isosonic lines - ISO 226 - 2023
Directory
Manufacturers and constructors
(non-exhaustive list)
Apple :
https://support.apple.com › fr-fr
Bose:
https://automotive.bose.com/technology-systems/active-sound-management
...
The Ultimate Scientific and Technical Reference
