Mouth Simulator 44AA

  •  Part Number: 44AA
     Category: GRAS Sound & Vibration
  •  View: 393
     Status: Available

  • GRAS 44AA 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 and CCITT P.51.

  • Sale Price: Liên hệ
  • 0903368648
    +84903368648
Product Information

1. Introduction

At the mouth reference point (MRP), which is 25 mm from the detachable lip ring (35 mm from the mouth of the GRAS 44AA/AA-1), the maximum continuous signal it can produce in ⅓-octave bands is 100 dB re. 20 µPa in the frequency range of 100 Hz to 16 kHz. Its loudspeaker accepts an external signal either directly or via its own built-in power amplifier (when power is applied).

Jigs are included for calibration according to CCITT P.51 and IEEE 269. These are for use with 1/4in or 1/2in microphones. One jig holds the microphone at 0º incidence (1/4in only) to the sound source, the other at 90º incidence (1/4in or 1/2in).

NOTE: This type of mouth simulator can not be mounted inside a KEMAR head.

2. Specifications

ITU-T recommondations

P.51

Connector type

 BNC

IEEE standard

 269.661

Input impedance

 20kOhm

Maximum power, continuous

 10W
Maximum power, pulsed 2 sec. 50W

Dải nhiệt độ làm việc

 10 tới 35 °C

Gain

 10dB

Input signal, max.

 2Vrms

Weight

Tuân thủ CE/RoHS/WEEE registered

1050g

Có/Có/Có

Built-in power amplifier

Maximum continuous output level at MRP [200 Hz - 6 kHz] 110 dB re. 20 μPa

Maximum continuous output level at MRP [100 Hz - 16 kHz] 100 dB re. 20 μPa

Distortion 250 Hz - 8 kHz (Linear signal @ 94 dB at MRP) typically 1 %, max. 1.5 %

3. Download

Datasheet 44AA-AB

4. Contact

Unit 2209, Golden Park Tower, 2 Pham Van Bach Street, Yen Hoa, Cau Giay District, Ha Noi, Vietnam

cell: +84 90 336 8648

email: tuonglam@syscovn.com

 
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