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Market & review 市场和评论
Canalys: 2021年全球穿戴和耳机出货数据 - link
20 years on: How Sonos invented the future of wireless audio - link
New products and features 新产品和功能
OPPO released Enco Air2 Pro earphone with ANC - link
Sennheiser released a new sports TWS earphone, which provided open ear tips to release occlusion effect - link. They also released a new Momentum True Wireless 3 TWS earphone - link. 森海塞尔发布第三代 Momentum 耳机 - link
Bang & Olufsen introduces Beoplay EX ANC TWS earphones - link B&O推出新一代棒状ANC TWS耳机 - link
Audio technology 音频技术
The research from Meta Reality Labs shows that "a flat headphone response is preferred when listening to spatial audio content, whereas the Harman target was preferred for stereo content." - Link
Sonos will acquire Dutch Speaker Company Mayht whose Heartmotion technology could reduce the thickness of driver and the size of speaker enclosure, and also reduce the cabinet vibration of medium size of loudspeakers. - Link
The start-up company Niron Magnet is working on commercialization of a more environmental friendly magnet material, Iron Nitride (氮化铁). - link
This new MEMS microphone uses tiny laser sensor to capture silicone membrane movement instead of condenser principle. It results in much high SNR than conventional MEMS microphone. - link
CEVA article: How to Evaluate a 3D Audio Solution - Head Tracking Accuracy - link