PRODUCTS
- Acoustic related products
- Head and Torso Simulator
DUMMY HEAD HATS
SAMURAI HATS®
TYPE 8328A
TYPE 8328B
TYPE 8328C
- ・TYPE 8328A – JPY 1,200,000
・TYPE 8328B – JPY 980,000
・TYPE 8328C – JPY 2,500,000
・TYPE 8328A（Head only） – JPY 650,000
・TYPE 8328B（Head only） – JPY 550,000
・Model Pinna（Left/Right 1set） – JPY 50,000
With ACO’s HATS (Dummy Head) that complies with ANSI and IEC standards, measurements can be made taking effects by diffraction or reflection that occurs when the acoustic wave propagates near the head and body into consideration. It uses omnidirectional type microphone and it is possible to record the sound with high presence that is very close to the real sound heard by human ear. (Binaural recording)
It is ideal for evaluation of headphones or earphones and measurement of automobile interior acoustic field. Also, highly precise analysis for architectural acoustics can be achieved by using Handheld Analyzer.
TYPE 8328A has ear simulator coupler (both ears) and is suitable for development/evaluation of headphones or earphones or measurement of acoustic characteristics of cell phones, etc.
TYPE 8328B has 2 microphones positioned near the ear canals and is suitable for measurement of automobile interior acoustic environment (interior noise, voice recognition), reflecting effects on response caused by human head and body.
■ Measurement for development or evaluation of headphones/earphones
■ Measurement for acoustic characteristics of cell phones, etc.
■ Binaural recording
■ Measurement for Head Related Transfer Function (HRTF)
■ Measurement of automobile interior acoustic environment (interior noise, voice recognition)
| When performing acoustic measurements in the car, existence of human body in relatively small room cubic capacity cannot be ignored. For that reason, it is essential to make measurement of acoustic characteristics using HATS that simulates upper torso of human body having microphones at the positions of ears. It enables measurement of phenomena that are peculiar to the automobile interior including effects of human body, which is otherwise impossible to measure with ordinary microphones. In addition, by using FFT analysis software SpectraPLUS-SC, analysis of 2ch frequency into cosideration for both of left and right ears, and measurement of phase and transfer function can be performed. |
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Feature
■ It is selectable from head only (dummy head) or with torso (HATS)
■ It has built-in Ear Simulator couplers (for both ears)
(IEPE (constant current) 2ch power source included)
■ It is possible to connect to various acoustic measurement equipments.
SAMURAI HATS specification
| Applicable standards | ITU-T Rec. P. 58, ANSI S3.36-1985 IEC 60318-7 acoustic characteristic |
| Frequency range | 100 Hz – 10 kHz |
| Operational temperature range | -20 ̊C - +60 ̊C |
| Height (overall height) | 724 mm |
| Height (torso) | 474 mm |
| Width | 400 mm |
| Depth | 170 mm |
| Weight | Approx. 10 kg |
Ear Simulator specification
| Applicable standards | IEC 60318-4（former 60711)/ITU-T Rec. P57 |
| TYPE No. | TYPE 2128E |
| Microphone | TYPE 7813 (Sound pressure type) |
| Sound pressure sensitivity | -39 dB re 1 V/Pa (11.2 mV/Pa) |
| Frequency characteristic | 100 Hz – 10 kHz |
| Volume | 1.28 cm3 +/- 0.03 cm3 |
Preamplifier Integrated Microphone specification
| TYPE No. | TYPE 4246N |
| Polarizing voltage | 0 V |
| Frequency range | 20 Hz – 20 kHz |
TYPE 8328A
| SAMURAI HATS | 1 ea |
| Ear Simulator TYPE 2128E | 2 ea |
| 2CH Microphone Power Supply TYPE 5006 | 1 ea |
| BNC Cable 3 m BC-0070-3 | 2 ea |
TYPE 8328B
| SAMURAI HATS | 1 ea |
| Microphone TYPE 4246N | 2 ea |
| 2CH Microphone Power Supply TYPE 5006 | 1 ea |
| BNC Cable 3 m BC-0070-3 | 2 ea |
TYPE 8328C
| SAMURAI HATS | 1 ea |
| Ear Simulator TYPE 2128E | 2 ea |
| 2CH Microphone Power Supply TYPE 5006 | 1 ea |
| BNC Cable 3 m BC-0070-3 | 2 ea |
| Audio Tester | 1 ea |
| Mouth Simulator | 1 ea |
| Handset Positioning System | 1 ea |
| Microphone Attachment Adapter | 1 ea |
| Reference Microphone × 1, Preamplifier × 1, and Adapter × 1 | 1 set |
TYPE 8328A（Head only）
| SAMURAI HATS（Head only） | 1 ea |
| Ear Simulator TYPE 2128E | 2 ea |
| 2CH Microphone Power Supply TYPE 5006 | 1 ea |
| BNC Cable 3 m BC-0070-3 | 2 ea |
| Tripod Mounting Fixture | 1 ea |
TYPE 8328B（Head only）
| SAMURAI HATS（Head only） | 1 ea |
| Microphone TYPE 4246N | 2 ea |
| 2CH Microphone Power Supply TYPE 5006 | 1 ea |
| BNC Cable 3 m BC-0070-3 | 2 ea |
| Tripod Mounting Fixture | 1 ea |
Optional Items
| Sound Level Meter | TYPE 6236 |
| Real Sound Recording Card | NA-0038R |
| Waveform Analysis Software | NA-0038X |
| Handheld Analyzer | TYPE 6240 |
| FFT Analysis Software | SpectraPLUS-SC |
| A/D Convertor (Sound Card) | Spectra DAQ-200 |
| Calibrator (Pistonphone) | TYPE 2124A |
| Pistonphone Adapter | |
| Carrying Case | NA-0081 |
| Calibration Certificate | |
| Head | |
| Pinna (Left, Right) |
Example of system configuration
TYPE 8328A Frequency Response
TYPE 8328B Frequency Response
Dimension
Calibration of HATS by Pistonphone
Side panel
Model Pinna（Left/Right）
