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Active Noise Canceling (ANC): The hot headphone feature of the 21st century is active noise canceling, otherwise known as ANC. Flip a switch (or press a button) and the earpieces magically reduce ...
Extra features: Many hearing aids offer additional features such as rechargeable batteries, directional microphones, wind noise reduction, extended battery life, and advanced noise cancellation ...
Unfortunately, Amanda Cooper, a licensed hearing aid specialist, tells us "The average individual waits seven to 10 years after they first notice hearing loss to take steps toward addressing their ...
Active noise canceling is best suited for low frequencies. For higher frequencies, the spacing requirements for free space and zone of silence techniques become prohibitive. In acoustic cavity and duct-based systems, the number of nodes grows rapidly with increasing frequency, which quickly makes active noise control techniques unmanageable.
Fogel is considered to be the inventor of active noise cancellation, and he designed one of the first noise-cancelling headphones systems. Later on, Willard Meeker designed an active noise control model that was applied to circumaural earmuffs for advanced hearing protection. Noise-cancelling aviation headsets are now commonly available. [5] [6]
A prototype Bose product was used to prevent hearing loss in pilots during the first non-stop around-the-world flight in the Rutan Voyager. [1] The company was the first to release active noise cancelling headphones as a consumer product. [4]
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