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Noise Canceling

Music

V-MODA’s Vibe Duo headset

November 15, 2007 Mobile phones and personal media players are all about entertainment, communications and increasingly, fashion – and any good fashion statement needs fashionable accessories. Designed with assistance from Apple, V-MODA’s noise isolating Vibe Duo headset takes this approach seriously with high-definition sound and a discrete microphone rolled into a slick all-metal design.Read More

Mobile Technology

MOTOROKR T505: hands-free speakerphone and FM transmitter

November 8, 2007 Motorola’s latest in-car technology combines a Bluetooth In-Car Speakerphone and a Digital FM Transmitter for hands-free phone calls and music streamed to the car stereo. When calls come in, the T505 automatically mutes the music and audibly announces the Caller-ID, so drivers can keep their eyes on the road and echo and noise reduction technology are built-in along with "StationFinder" technology that identifies the best FM connection. When the ride’s over, the T505 can be easily unhooked and taken to another car for the next trip. features StationFinder, a technology that announces where the best FM connection can be found on the user’s car radio.Read More

Wearables

Plantronics convertible mono to stereo Bluetooth headset

September 12, 2007 Plantronics have introduced a Bluetooth convertible mono to stereo headset for MP3 Bluetooth enabled mobile phones. The Voyager 855 headset offers a convertible design for listening to calls in mono as well as listening to music in stereo as headphones via a detachable stereo cable. Drop the second earbud or detach the cable and the headset serves as a high-quality mono Bluetooth device. Read More

Mobile Technology

Quellan's QNx220 Noise Canceller boosts mobile signal strength

September 3, 2007 Quellan has announced a new RF Noise Canceller that extends the advantages of the technology beyond the realm of purely audio applications to enhance signal strength and clarity for video reception. In a weak signal area such as underground roadways or in high rise environments, a cell phone using the QNx220 can recover several bars of lost signal strength and a GPS receiver can obtain a location lock in just seconds rather than minutes.Read More

Telecommunications

Mini Bluetooth headset cancels background noise for clear mobile conversations

August 27, 2007 Background noise can make mobile phone conversations in bars, clubs and noisy workplaces virtually incomprehensible – which is why BlueAnt’s new Z9 Bluetooth headset features smart noise cancellation and voice boosting software. The difference is profound – with this tiny, 10-gram device you can now have natural, clear phone conversations in the noisiest environments.Read More

Telecommunications

Noise-cancelling hands-free office headset

May 4, 2007 Plantronics' latest wireless professional headset, the CS70N, incorporates noise-cancelling technology for clearer calls from up to 300 feet away from the receiver. Focusing on premium audio performance, style and comfort, the CS70N Wireless Headset System has been optimized for both traditional and IP telephony phones and provides office professionals with excellent hands-free mobility for increased accessibility and efficiency at work.Read More

Mobile Technology

B&O mobile headset with Bluetooth and DSP

May 4, 2007 Bang & Olufsen’s A8 earphones are now five years old but remain one of the most functional and aesthetic earphones on the market, having subsequently spawned the Earset 1 for mobile phones. Now the Danish tastemeister has evolved the distinctive, comfortable and stylish design to incorporate Bluetooth and Digital Signal Processing (DSP) noise cancellation technology. The US$420 Earset 2 offers four hours of talk time, weighs just 22g and will perform most admirably in any environment where background noise can take over. Exceptional transmission quality is achieved by two omni-directional microphones which filter and suppress background noise, giving the best voice transmission possible. The loudspeaker in Earset 2 is a fully-fledged closed cabinet loudspeaker unit in miniature. Supported by air vents and a bass port together with an ergonomic design, the loudspeaker has a frequency response that gives an exceptionally high degree of tonal precision.Read More

Marine

Noise-cancelling piezo-ceramic bearings

February 16, 2007 In an interesting development, the same technology that is used in noise-cancelling headphones (roughly speaking) is to be applied to heavy marine engines to reduce their noise and vibrations. The vibrations from marine diesels spreads through the entire hull, but researchers have now found a way of blocking the sound immediately below the engine with the help of computer-controlled counter-vibrations from an active damper between the engine and the bearing by which the engine is attached to the hull. This active bearing is made primarily from piezo-ceramics, materials that can change their shape when electrically stimulated. If they are stimulated very quickly, they generate high-frequency vibrations – which are exactly what marine engines need. Using sophisticated sensors, the scientists measure the engine’s vibrations and trigger the piezo-ceramics such that they precisely counteract this motion.Read More

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