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An electro-acoustic transducer housing a sensor (MEMS) and an application-specific integrated circuit (ASIC) together is referred to as a MEMS microphone.
Variable incoming sound pressure is converted by the sensor into capacitance fluctuations, which are then converted by the ASIC into analogue or digital output.
The top or bottom port nomenclature refers to the location of the sound inlet where the acoustic wave enters the microphone.
All audio applications that need tiny size, excellent sound quality, dependability, and cost are the focus of MEMS microphones.
The Global Automotive MEMS Microphone market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Knowles launched the SPH1878 and SPH9855 in a new line of automotive-grade MEMS microphones.
The new microphones from Knowles are built to a higher standard of quality and supply assurance to satisfy the growing demands of the automotive market for hands-free calling, cutting-edge voice assistance, and in-cabin noise reduction for passenger comfort.
By introducing these most recent microphones, Knowles is demonstrating its continued commitment to the automotive market and advancing its already high standards for quality and innovation, which are unrivalled in the sector.
A new grade of MEMS microphones for the automobile industry is something we are happy to provide.
As connected-world commuters and customers, we look forward to giving automakers more tools to improve voice call quality, provide cutting-edge audio features, and enable quieter travel for years to come.
While SPH9855 has a PDM digital interface, SPH1878 has both single-ended and differential analogue interfaces.
The two microphones may work with the European eCall communication system and are intended for beamforming applications.
High dynamic range for better call and sound quality, a wider working temperature range for automotive applications, minimal phase distortion for increased noise cancellation performance, and improved manufacturing stability and traceability are key benefits.
