SBIR Phase I: High Performance Directional MEMS Microphones for Communication Devices

SBIR 第一阶段：用于通信设备的高性能定向 MEMS 麦克风

• 批准号: 0839518
• 负责人: Caesar Garcia
• 金额: --
• 依托单位: Silicon Audio, LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0839518&HistoricalAwards=false
• 关键词: SBIR; Phase; Performance; Directional; MEMS

This Small Business Innovation Research (SBIR) Phase I project will investigate a novel MEMS based microphone based on entirely new design principles. By abandoning the traditional 100 year-old microphone architecture common to both full-scale microphones as well as recently commercialized MEMS microphones, this project will explore a vastly superior acoustical design that will result in substantial improvements in fidelity and SNR (20 dB SNR improvement over existing MEMS microphones). Furthermore, the microphone will have an inherently directional response with the benefit of focusing on a speaker or event of interest while rejecting ambient background noise. These attributes make this innovation ideal for addressing an emerging need of high volume consumer communication device manufactures that are looking for acoustic sensing innovations with the unique combination of high performance and low manufacturing cost. If successful the proposed innovation will enable, for the first time, the introduction of performance-audio quality into a suite of consumer communication devices. The primary customer focus for this innovation is high volume consumer communication device manufacturers with applications on their horizon that demand substantial improvements in microphone component performance. Presently, commercial suppliers of MEMS microphones all use variations of a traditional microphone architecture which has proven incapable of addressing high performance applications, in particular those that require high fidelity and directionality. Additional markets and applications for this innovation include acoustic instrumentation, performance audio, military and defense, intelligence gathering, speech recognition (ex. in laptop computers), and hearing aids. Addressing hearing aid markets will have a societal impact as well, as patient satisfaction with hearing aid devices is presently very low. The innovation is also expected to have other audiological applications including use in hearing health monitoring systems based on otoacoustic principles. Clinical tools and instruments based on this innovation will serve to enhance scientific and technological understanding in many fields of acoustics.

这项小型企业创新研究（SBIR）第一阶段项目将研究一种基于全新设计原则的新型MEMS麦克风。该项目放弃了全尺寸麦克风和最近商业化的MEMS麦克风所使用的传统的100年历史的麦克风架构，将探索一种非常优越的声学设计，从而大大提高保真度和信噪比（比现有MEMS麦克风提高20 dB信噪比）。此外，麦克风将具有固有的方向性响应，可以在排除环境背景噪声的同时专注于演讲者或感兴趣的事件。这些特性使得这种创新非常适合满足大量消费通信设备制造商的新兴需求，这些制造商正在寻找具有高性能和低制造成本的独特组合的声学传感创新。如果成功的话，这个创新方案将首次将性能音频质量引入一套消费者通信设备中。这项创新的主要客户焦点是大批量消费通信设备制造商，他们的应用需要大幅提高麦克风组件的性能。目前，MEMS麦克风的商业供应商都使用传统麦克风架构的变体，这种架构已被证明无法解决高性能应用，特别是那些需要高保真度和方向性的应用。这种创新的其他市场和应用包括声学仪器，表演音频，军事和国防，情报收集，语音识别（例如笔记本电脑）和助听器。解决助听器市场也将产生社会影响，因为患者对助听器的满意度目前非常低。这项创新也有望有其他听力学应用，包括基于耳声学原理的听力健康监测系统。基于这一创新的临床工具和仪器将有助于加强声学许多领域的科学和技术理解。