人工嘴测试麦克风

4227型口模拟器开发用于测试电话发射器和其他传声器，其中需要类似于口腔语音的声场。4227型可保证提供最少110 dB SPL的持续输出

用途

·                           Quality control testing of frequency response and distortion of telephone transmitters and close-talking microphones

·                           Sound source for acoustic measurements

·                           用于频率响应和电话传送失真和近讲麦克风质量控制测试

·                           在声学测量作为声源

特点

·                           urate simulation of human voice field

·                           Continuous SPL of 110 dB at25 mm from lip ring

·                           Low distortion

·                           Built-in overload protection circuit

·                           Optional regulating microphone for very urate frequency response control

·                           Calibration Jig included

·                           Conforms to Standards: IEEE 269, 661 and ITU-T Rec. P.51

模拟人的声音场

低失真

内置过载保护电路

的频率响应控制，可随意调节麦克风

包括校准夹具

符合IEEE 269，661和ITU-T Rec. p.51标准