Characteristics; Construction Of Hats; Head And Torso Construction; Mouth Simulator Construction - BRUEL & KJAER HF HATS 5128 User Manual

Handset positioner and high-frequency head and torso simulator

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Table Of Contents

Table of Contents

3.1

Construction of HATS

3.1.1

Head and Torso Construction

The shell of HF HATS Types 5128-C/D is made up of two parts: the torso, which is in one piece and

cannot be dismantled, and the head. The head cap can be removed, but is not intended to be

dismantled.

Tabletop HATS Type 5128-B consists of the head and a support foot.

3.1.2

Mouth Simulator Construction

Fig.3.1

Construction of the HF

HATS mouth

The construction of the mouth simulator of HATS is shown in Fig.3.1. It features a

high-compliance loudspeaker and has a carefully adjusted acoustic transmission path between

the loudspeaker and the sound radiation opening, which ensures that the sound pressure level

in front of the mouth can easily be equalized.

Chapter 3

Mouth

Simulator

Mouth

Adaptor

Centre of

Lip (CL)

Mouth Reference

Point (MRP)

Equivalent

Lip Plane

Ref.

Microphone

Holder

6 mm

25 mm

170210