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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]
Plantronics, Inc. is an American electronics company producing audio communications equipment for business and consumers. Its products support unified communications , mobile use, gaming and music. Plantronics is headquartered in Santa Cruz, California , and most of its products are produced in China and Mexico .
This category gathers the mobile phones equipped with multimicrophone Active noise control (for "uplink"). Pages in category "Active noise control mobile phones" The following 12 pages are in this category, out of 12 total.
After successful sales for the DSP-500 and the Xbox Communicator headsets, [3] In 2004, Plantronics announced the GameCom brand with four new headsets for Xbox Live and Online PC gamers: GameCom X10 and X20 for Xbox Communicator, and GameCom 1 (analog) and GameCom Pro 1 with digital signal processing built-in sound card and connected to a PC via USB port.
This page was last edited on 23 February 2005, at 23:41 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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