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Jabra's product range includes wireless earbuds, noise-cancelling headphones, headsets, hearing aids, video conferencing cameras, and fitness-tracking sports headphones designed for use during exercise. GN Group announced in a press-release on 11 June 2024 that Jabra would gradually wind down their Elite and Talk product lines.
In 1957 Willard Meeker developed a working model of active noise control applied to a circumaural earmuff. This headset had an active attenuation bandwidth of approximately 50–500 Hz, with a maximum attenuation of approximately 20 dB. [3] By the late 1980s the first commercially available active noise reduction headsets became available.
Most external microphone designs are of either omnidirectional or noise-canceling type. Noise-canceling microphone headsets use a bi-directional microphone as elements. A bi-directional microphone's receptive field has two angles only. Its receptive field is limited to only the front and the direct opposite back of the microphone.
In 2024, Nature Electronics reported on noise-canceling headsets that can create sound bubbles around the wearer. [ 45 ] [ 46 ] These devices combine artificial intelligence with noise-canceling technology to create customizable auditory zones—known as sound bubbles—that let users focus on speakers within a designated area around them while ...
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A truck converted to run on biofuel. Walmart's truck fleet logs millions of miles each year, and the company planned to double the fleet's efficiency between 2005 and 2015. [73] Fifteen based at Walmart's Buckeye, Arizona, distribution center were converted to run on biofuel from reclaimed cooking grease made during food preparation at Walmart ...