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48
High-frequency Head and Torso Simulator (HF HATS) Type 5128 – User Manual
6.2
Specifications Tabletop HATS Type 5128-B
LISTENER FREQUENCY RESPONSE
Based on specifications in ITU-T Rec. P.58, IEC 60318–7 and
ANSI S3.36–1985
EAR SIMULATOR
Output BNC (Connector Panel)
Sensitivity: 15.8 mV/Pa = –37.7 dB (±2.2 dB) re 1 V/Pa @ 250 Hz
Sound Pressure Level at 3% Harmonic distortion: 160 dB re
20 Pa at eardrum position
Typical Noise Level: 27.5 dB SPL(A) re 20 Pa at eardrum
position
TYPICAL LEFT EAR TO RIGHT EAR TRACKING
Better than ±1 dB up to 5 kHz, better than ±3 dB up to 20 kHz
6.3
Specifications HF HATS Types 5128-C and 5128-D
LISTENER FREQUENCY RESPONSE
Based on specifications in ITU-T Rec. P.58, IEC 60318–7 and
ANSI S3.36–1985
EAR SIMULATOR
Output BNC (Connector Panel)
Sensitivity: 15.8 mV/Pa = –37.7 dB (±2.2 dB) re 1 V/Pa @ 250 Hz
Sound Pressure Level at 3% Harmonic distortion: 160 dB re
20 Pa at eardrum position
Typical Noise Level: 27.5 dB SPL(A) re 20 Pa at eardrum
position
TYPICAL LEFT EAR TO RIGHT EAR TRACKING
Better than ±1 dB up to 5 kHz, better than ±3 dB up to 20 kHz
PINNA SIMULATORS
Dimensions comply with ITU-T Rec. P.58, IEC 60318 – 7 and
ANSI S3.36.
Types 5128-C/D are supplied with calibrated pinnae and ear
simulators
MOUTH SIMULATOR
Input BNC (Connector Panel)
Sound Pressure Distribution: conforms to ITU-T Rec. P.58
Mouth Opening (W H): 30 11 mm (1.18 0.43)
Equivalent Lip Plane Position, CL: 6 mm (0.24) in front of
the mouth opening
Mouth Reference Point, MRP: 25 mm (0.98) in front of
mouth CL
Continuous Output Level at MRP with sine tones:
• Min. 110 dB SPL, 200 Hz to 3 kHz
• Min. 100 dB SPL, 100 Hz to 11.8 kHz
• Min. 95 dB SPL, 100 Hz to 12.5 kHz
*
For example when using ITU-T P.50 artificial speech and real speech signals according to ITU-T P.501.
PINNA SIMULATORS
Dimensions comply with ITU-T Rec. P.58, IEC 60318 – 7 and
ANSI S3.36.
Type 5128-B is supplied with calibrated pinnae and ear
simulators
DIMENSIONS AND WEIGHT
The main dimensions comply with the dimensional
requirements of ITU-T Rec. P.58 and the reports from
IEC 60318–7 and ANSI S3.36–1985
Total Head Height: 290 mm (11.42)
External Neck Diameter: 112 mm (4.4)
Head Angles: Vertical or tilted 17 forwards
Weight: 6.8 kg (14.99 lb)
Continuous Output Level at MRP with 1/3-octave pink noise
• Min. 106 dB SPL, 50 Hz to 16 kHz
• Min. 100 dB SPL, 20 Hz to 20 kHz
Typical Sensitivity at 1 kHz at MRP:
• 94 dB SPL @ 35 mV
rms
• 110 dB SPL @ 0.2 V
rms
• 120 dB SPL @ 0.7 V
rms
Harmonic Distortion at 94 dB SPL: Less than 14% at 100 Hz;
less than 1% from 300 Hz to 11.8 kHz
Max. Input Voltage: 0.7 V
rms
20 C (68 F))
Input Impedance: greater than 30 k
Typical Amplifier Gain: 19 dB ±0.3 dB
Protection Circuit:
• Threshold voltage: 1 V
• Detection time: 12 s
• Recovery time: 2 s (loudspeaker muted)
DIMENSIONS AND WEIGHT
The main dimensions comply with the dimensional
requirements of ITU-T Rec. P.58 and the reports from
IEC 60318–7 and ANSI S3.36–1985
Total Height, Head and Torso: 695 mm (27.4)
Torso: Height: 460 mm (18), Width: 410 mm (16), Depth:
183 mm (7.2)
External Neck Diameter: 112 mm (4.4)
Head Angles: Vertical or tilted 17 forwards
Weight: 9 kg (19.8 lb)
continuous input voltage (at
*
:
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