The sensor is a high bandwidth, low-power specialised vibration sensor that has been developed to improve voice call quality in noisy environments by removing ambient sounds.
As more consumers use audio devices, such as True Wireless Stereo (TWS) earbuds, for voice communications and calling on the move, they often have to use them in loud public environments. Noisy distractors common in restaurants, airports, and public transportation, however, continue to present challenges for high-quality communication beyond what traditional noise suppression can do. High winds and traffic noise can also severely degrade voice call clarity in outdoor environments.
In response, the V2S200D looks to solve these challenges and selectively pick up the speaker’s voice while suppressing all other sounds. Blending low-band voice signals from the V2S200D together with the high-band audio signals using today’s TWS microphones it is possible to provide a more consistent and reliable voice call experience. In addition to enhancing voice call quality, this sensor enables other use cases like voice activity detection, imposter rejection, and personalisation.
The V2S200D, with its small size, high Signal-to-Noise ratio (SNR), and low power is intended for OEMs/ODMs looking to enhance the user experience of their products while working with significant Industrial Design (ID) and battery life constraints.
In addition, upon integration into the system, it emulates a digital mic with a Pulse Density Modulation (PDM) interface, which makes hardware and software development easier.
Commenting Peter Cooney, Founder and Research Director of SAR Insight, said that bone conduction sensors were fast becoming an essential feature in TWS designs to improve voice pick-up in noisy environments.
“Until now, however, solutions in the market have tended to deliver less than ideal-performance or have been challenging to integrate due to their size, robustness, high power consumption, or some other significant trade-off. The V2S200D sensor provides an impressive level of performance, with low power, in a tiny package – essentially, the sweet spot for many applications in today’s market.”
V2S200D is sampling with lead customers and is expected to be in mass production later this year.
