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Artificial Ear&Mouth
44AA/44AB mouth simulation
The artificial mouth sound source simulation of the mouth in the measurement of sound, mobile phone, telephone and other communication products when the microphone, need to simulate mouth sound reputation, AM012 continuous emission standard in the lip ring position 25 mm 94 dB, frequency of 200 - 8000 Hz, covering the range of speech communication. 1/4 "or 1/2" microphone, can accurate measurement and calibration of AM012 issued by the sound pressure level of the prestigious AM012 in accordance with IEEE 269, IEEE 661 and ITU-T Rec. P51. The artificial mouth is widely used in acoustic measurement of mobile phone, telephone, microphone, acoustic device.
Function IntroductionTechnical ParametersConfiguration Checklist
Artificial mouth is simulated human mouth sound source close to the sound field for the telephone receiver, and acoustic testing other microphones used in voice communications network. Its built a speaker, IEEE 269,661 in line with international standards and ITU-T P51 recommendations in the "mouth reference point" to an acoustic signal requirements
Model 44AA 44AB
In the mouth reference point
Minimum continuous sound level
10dB re.20μPa(200Hz - 6 kHz)
100dB re.20μPa(100Hz - 10 kHz)
110dB re.20μPa(200Hz - 6 kHz)
100dB re.20μPa(100Hz - 10 kHz)
Speaker 8Ω/ 20W (连续最大值) 8Ω/ 20W (连续最大值)
Amplifiers 增益:10dB
输入阻抗:20 kΩ
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-
Mouth  size 直径20 mm 直径20 mm

The gauge lip ring Specifications

The outer diameter Distance from the mouth


48 mm
10 mm

48 mm
10 mm
Dimensions Diameter Height
104 mm
104 mm

104 mm
104 mm
Weight 1.3 kg 0.93 kg
Configuration content
Number
44AA/44AB simulation nozzle
1



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