Adaptive beamforming! The EVOKE E22 hearing aid antenna focuses on speech signals

        The EVOKE E22 hearing aid is equipped with an adaptive beamforming antenna that tracks the direction of speech sources in real time through an array of 8 micro antenna units. The signal gain is concentrated within a 120 ° range in front, while suppressing interference noise from the side and rear. This antenna adopts MIMO technology and can simultaneously receive 4 signals in the 2.4GHz frequency band. After algorithm fusion, the signal-to-noise ratio is improved by 30dB.

        In noisy scenarios such as restaurants and markets, the antenna can automatically recognize and focus on the speaker's voice, increasing the speech recognition rate from 52% to 85%; When the speaker moves, the antenna beam can adjust direction within 0.2 seconds to ensure continuous signal stability. A certain audiologist evaluated that this technology upgrades hearing aids from "passive amplification" to "active noise reduction", which is a milestone breakthrough in the industry.