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China Shenzhen Baichuan electronics Co., LTD

Professional manufacturer of acoustic test instruments.


Mouth simulator/

CRY605 Mouth simulator

Technical specifications of CRY605
Min. continuous output SPL 200 Hz - 10 kHz: 110 dB (@ 25mm MRP)

100 Hz - 10 kHz: 100 dB (@ 25mm MRP)

Distortion 200 Hz - 10 kHz: <1.5%, generally <1%

(94 dB SPL @ 25 mm MRP)

Frequency response curve Output sound pressure after compensation: 94 dB ±1 dB (100 Hz - 10 kHz)
Sound aperture Ø20mm
Lip ring O.D.: Ø 51 mm

Height: 25 mm

Diameter Ø100mm
Height 88mm
Net weight 1.3kg
Interface BNC
Max. the input signal 1Vrms
The power supply of built-in power amplifier 15VDC
Gain of built-in power amplifier 20dB
Power of built-in power amplifier 20W

  • Product Detail
  • Features

CRY605 Mouth Simulator is used to simulate the sound source of the sound field near the mouth of a person and is suitable for the acoustic parameters testing of telephone transmitters and microphones, such as frequency response and distortion. It meets the requirements of the international standards IEEE 269 and IEEE 661 and the requirement for a “mouth reference point” for transmitting acoustic signals in ITU-T P51.

Test curve graph

Input voltage = 0.1 V (amplified to 1 V by built-in power amplifier), frequency response curve at 25 mm (MRP)


Test curve graph

The frequency response curve of 94 dB sound pressure after compensation


Test curve graph

Total harmonic distortion (THD) curve of 94 dB sound pressure after compensation



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