Mouth Simulator Type 4227 is designed to test telephone transmitters and other microphones where a sound field similar to the human voice field is required. Also used as accurate refence source for near field testing of handsets and microphones.
- Quality control testing of frequency response and distortion of telephone transmitters and close-talking microphones
- Sound source for acoustic measurements
Provision exists for fitting a microphone at the mouth opening, for use in a compressor loop to give constant sound pressure output. Accurate calibration is facilitated by a calibration jig provided with this product.