Focus on a single voice in a noisy crowd
Monaural directional systems have a wide front focus and do not address the challenge of one-to-one communication in high levels of surrounding background noise. StereoZoom enables the wearer to narrow the beam further and focus on a single speaker, while suppressing other interfering sounds. StereoZoom employs exclusive wireless full bandwidth audio streaming and sophisticated processing technologies to create a bi-directional network of four microphones. The ipsilateral and streamed contralateral signals for each side are analyzed and processed in real time to create a narrow beam which effectively zooms in on a single voice.

StereoZoom significantly improves the Directivity Index (DI) across a broad frequency range. It is designed to perform best when the listening goal is to understand a single zoice in a noisy crowd. Phonak validation data shows, in such situations, StereoZoom achieves a valuable additional improvement of up to 3 dB signal-to-noise ratio.