About Phonak

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Learn more about our latest key technologies and gain more insight into what makes our products truly unique.

Capturing all of life’s most challenging soundscapes

Binaural VoiceStream Technology™ is the exclusive ability of Phonak hearing aids to stream the full audio bandwidth in real-time and bi-directionally for improved sound quality and unmatched speech understanding. This unique technology enables programs and features such as Speech in Wind, Speech in 360°, and DuoPhone.

Icon Binaural Voicestream

Speech in Wind has been proven to improve speech intelligibility by up to 28%. Speech in 360° achieves 80% speech intelligibility even at –10 dB signal-to-noise ratio.

(M. Latzel, 2013) (Phonak Field Study News, September 2010)


Speech in Wind

Detects and reduces wind noise and streams speech to the side most affected by wind, making voices clearer while improving comfort thereby improving the speech intelligibility by up to 28%.

  • What is Binaural VoiceStream Technology?
  • How does it work?
  • Where can it be used?
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Binaural VoiceStream TechnologyTM enables Phonak hearing aid wearers to focus on a single voice in challenging listening situations. This means more signal, less noise, and better understanding in more listening situations.

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With Binaural VoiceStream TechnologyTM Phonak has the unique ability to stream, in real-time and bi-directionally, the full audio bandwidth. This unique technology enables programs and features such as Speech in Wind, Speech in 360°, and DuoPhone.

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Binaural VoiceStream TechnologyTM is useful in the following situations:

  1. In loud noise - StereoZoom
  2. In wind – Speech in Wind
  3. On the phone - DuoPhone

Products with Binaural VoiceStream Technology™

Binaural VoiceStream Technology is available on Quest and Venture Platform products.

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