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    High-Performance Digital Voice Vibration Sensor

    V2S200D: A First-of-its-Kind Digital Voice Vibration Sensor

    A high bandwidth, low-power specialized vibration sensor to improve voice call quality in noisy environments

    More than ever, consumers use audio devices, such as True Wireless Stereo (TWS) earbuds, for voice communications and calling on the move, often in loud public environments. Outdoors and wind noise, in particular, can severely degrade voice call clarity. V2S200D is designed to selectively pick up the speaker’s voice while suppressing all the other sounds, allowing for a comfortable and frustration-free voice call experience.

    In addition to enhancing voice call quality, voice activity detection, imposter rejection, and personalization are some of the other use cases made possible by this sensor.

    V2S200D, with its small size, high Signal-to-Noise ratio (SNR), and low power, offers an ideal solution to 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 Pulse Density Modulation (PDM) interface, which makes hardware and software development hassle-free.


    SNR / 64.5 dB(A)
    3.30 mm x 2.30 mm x 0.93 mm
    Current: As low as 290uA




    64.5dB Signal-to-Noise Ratio (SNR) in a small footprint 
    High SNR & B/W for clear voice pick-up in loud/windy conditions
    Low power consumption for always-on usage
    50dB acoustic isolation in a noisy environment (bars, airports, windy outdoor spaces) 
    Ease of integration from PDM interface; Stereo mode supported



    Self-Speech Detection
    Wind Noise Reduction
    Imposter Rejection

    Try It! Listen to the V2S200D Difference


    Listening ExperienceWind NoiseBackground Noise
    Conventional Microphone
    V2S – Raw Output
    V2S – 2kHz Low Pass Filter
    V2S – High Frequency Gain Band Gain 1.5kHz 25dB gain Q5 6kHz Low Pass Filter
    Blended solution –
    V2S Low Frequency (<2kHz) and Microphone High Frequency (>2kHz)

      V2S recordings have ~20dB gain applied to normalize the signal level of the microphone recording.



    Product Information

    V2S200D Product Brief
    V2S200D Datasheet
    V2S200D User Guide
    V2S200D Evaluation Kit User Guide
    V2S200D Flex Product Brief


    To Order

    V2S samples, V2S on Flex, and V2S Evaluation Kits are available on Digi-Key.

    Want to Evaluate V2S? Download the Evaluation Software to be used with the V2S Evaluation Kit*

    * The V2S200D Evaluation Kit is available on Digi-Key 

    By checking this box, you acknowledge the Knowles Licensing Agreement for the Voice Vibration Sensor Evaluation Tool.

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