GRAS 44AB Mouth Simulator is a sound source that simulates the sound field around the human mouth at close quarters and complies with the Standards IEEE 269, 661 and ITU-T Rec. P51. GRAS 44AB is for testing telephone mouthpieces as well as other microphones similarly used in communication networks.

gras 44ab嘴模拟器是一种近距离模拟人体口腔周围声场的声源，符合标准ieee 269、661和itu-t rec.p51。 GRAS 44AB用于测试电话接口以及其他类似通信中使用的传声器。

GRAS 44AB Mouth Simulator is a sound source that simulates the sound field around the human mouth at close quarters and complies with the Standards IEEE 269, 661 and ITU-T Rec. P51. GRAS 44AB is for testing telephone mouthpieces as well as other microphones similarly used in communication networks. GRAS 44AB Mouth Simulator according to ITU-T ...

GRAS 44AB Mouth Simulator is a sound source that simulates the sound field around the human mouth at close quarters and complies with the Standards IEEE 269, 661 and ITU-T Rec. P51. GRAS 44AB is for testing telephone mouthpieces as well as other microphones similarly used in communication networks.

gras 44ab 口腔模拟器 产品简介： 在距离可拆卸唇环 25 毫米（距离 44AB 型的嘴部 35 毫米）的嘴部参考点 (MRP) 处，它可以在1 / 3倍频程频带内产生的最大连续信号 为 100dB re。

像B&K4153型或GRAS 43AA之类的人工耳是专门设计用于对明确的声学条件下的耳机和听筒进行电声测量。他们具有类似于人类耳朵的声学阻抗，并且满足IEC60318-1的要求。如需了解更多产品详情敬请联系我们的销售工程师或发送电子邮件至[email protected] 。

GRAS 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

GRAS 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

分销商 Gras 44AB 符合ITU-T建议书的GRAS 44AB嘴模拟器 P51 Bevs, Infitek, Kartell, Pilodist, SINEO, JFM, Biuged, Palintest, Benchmark, Mikrosize, HINOTEK, Corning Gosselin, MGC, DLAB, Teledyne Leeman Lab, GlobeCore, Junray, DaiHan, Cell Instruments, Wrindu. 价格合理详 …

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