{"id":10398,"date":"2024-02-15T14:38:38","date_gmt":"2024-02-15T21:38:38","guid":{"rendered":"https:\/\/mattfife.com\/?p=10398"},"modified":"2024-01-13T14:50:34","modified_gmt":"2024-01-13T21:50:34","slug":"ultrasonic-mems-may-be-about-to-take-over-your-ear-buds","status":"publish","type":"post","link":"https:\/\/mattfife.com\/?p=10398","title":{"rendered":"Ultrasonic MEMS may be about to take over your ear buds"},"content":{"rendered":"\n
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\u201cMost conventional speakers generate sound by actuating and pushing a diaphragm; you\u2019re pushing air to generate sound. We\u2019re actually going to use ultrasonic modulation and demodulation to create pressure and generate sound…this is fundamentally the first time humans are experiencing sound generated in a different way.\u201d \u00a0Mike Householder vice president of marketing and business development at xMEMS.<\/p>\n<\/blockquote>\n\n\n\n

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MEMS chips have already conquered the microphone market,\u00a0making up\u00a0the majority of microphones. But speakers have to propel a volume of air, rather than be pushed by it.\u00a0xMEMS speakers<\/a>\u00a0going into products\u00a0now<\/a>\u00a0are chips with multiple silicon flaps coated in piezoelectric material that vibrate at audible frequencies.<\/p>\n\n\n\n

MEMS chips specialize in generating audible frequencies with very low phase distortion. Phase distortion is the variation in the timing of an acoustic signal according to its frequency; and has been with us since speakers were created. <\/p>\n\n\n\n

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Phase inaccuracy is so ubiquitous that we simply accept it…. Driver technology up to now has never been able to be this accurate<\/em>.<\/p>\nBrian Lucey<\/a>, a mastering engineer on 9 Grammy-winning albums<\/cite><\/blockquote>\n\n\n\n

This means MEMS chips promise to deliver an audio experience without distortion in a way never before possible. If reports are to be believed, the improved quality and clarity is apparently immediately noticeable.<\/p>\n\n\n\n

Articles:<\/p>\n\n\n\n