Infineon and XMOS collaborate for voice recognition devices
Able to provide far field voice capture by audio beamforming and radar target presence detection, Infineon Technologies’ radar and silicon microphone sensors are combined with audio processor from XMOS for smart home products, smart TV and set top boxes, secure keyless entry systems, and other voice-operated consumer devices. According to the company, the devices guarantee optimal sound recognition and flawless execution for digital voice assistance across a broad range of voice-controlled devices.
Infineon’s 60GHz 2Tx/4Rx radar IC with accompanying antenna and 70dB SNR microphone, are based on the company’s dual backplate MEMS technology. The XMOS audio processor analyses the signal data from an array of digital microphones, adjusting the angular and distance data from each microphone to produce a beam at an angle identified by the radar data. A lit LED indicates presence detection and where sound is taken from.
The combination of an Infineon radar and the XMOS beamformer allows the microphone to target a specific object precisely, even with the object moving and indistinctive noise, claims Infineon. It also claims that the microphone delivers a superior user experience compared to existing voice-controlled systems, with clear understanding of commands and flawless execution that prevents unwanted activations of devices.