On Semi 公司的BelaSigna R261是完整的系统级芯片办理方案,能为便携式电脑,平板电脑,手机和其它手提音频设备提供双麦克风的低落噪音,提高语音清晰度. BelaSigna R261和各种的CODEC,基带芯片和麦克风兼容,不需要校准.主要用在便携式电脑,平板电脑,手机和其它手提音频设备.本京电港论坛文章先容了BelaSigna R261主要特点, 架构图,典范应用电路和接地方案图. Advanced Noise Reduction Solution for Voice Capture Devices BelaSignaR261 is a complete system−on−chip (SoC) solution that provides advanced dual−microphone noise reduction in voice capture applications such as laptops, mobile phones, webcams, tablet computers and other applications that will benefit from improved voice clarity. Featuring a novel approach to removing mechanical, stationary and non−stationary noise, the chip preserves voice naturalness for greater speech intelligibility even when the talker is further away or not optimally aligned with microphones providing unmatched freedom of movement for end−users. Designed to be compatible with a wide range of codecs, baseband chips and microphones without the need for calibration, BelaSigna R261 is easy to integrate, improving manufacturers’ speed to market. Additional features include the ability to customize multiple voice capture modes and tune the algorithm to the unique needs of a manufacturer’s device. The chip includes a highly optimized DSP−based application controller with industry−leading energy efficiency and is packaged in two highly compact 5.3 mm2 WLCSPs to fit into even the most sized−constrained architectures and allow the use of the cheapest printed circuit board design technologies. BelaSigna R261主要特点: Advanced Two−Microphone Noise Reduction Algorithm Preserves Voice Naturalness Supports Close−Talk and Far−Talk Conference Mode enables 360 Degrees Voice Pick−up Configurable Algorithm Performance Ultra Low Power Consumption Ultra Miniature Form Factor Complete System−on−Chip (SoC) Highly Flexible Clocking Architecture Hardware Configuration Interfaces Prototyping Tools These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant BelaSigna R261典范应用: Laptop Computers Mobile Phones Tablet PCs Webcams Any Portable Audio Application with Voice Pick−up |