Mouth simulators

  1. 44AB Mouth Sim ITU-T P51
    ITU-T rec.: P.51
    IEEE standards: 269, 661

    G.R.A.S. 44AB Mouth Simulator according to ITU-T Rec. P51

    G.R.A.S. 44AB Mouth Simulator is a sound source which simulates the sound field around the human mouth at close quarters and complies with the Standards IEEE 269, 661 and ITU-T Rec. P51.

    G.R.A.S. 44AB is for testing telephone mouthpieces as well as other microphones similarly used in communication networks.

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  2. 44AA Mouth Sim ITU-T P51, power amp
    ITU-T rec.: P.51
    Special feature: Built-in power amplifier

    G.R.A.S. 44AA Mouth Simulator according to ITU-T Rec. P51 with built-in power amplifier

    G.R.A.S. 44AA Mouth Simulator  is a sound source which simulates the sound field around the human mouth at close quarters and complies with the Standards IEEE 269, 661 and ITU-T Rec. P51.

    G.R.A.S. 44AA is for testing telephone mouthpieces as well as other microphones similarly used in communication networks.

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