arrow_back_ios

Main Menu

See All Software See All Instruments See All Transducers See All Vibration Testing Equipment See All Electroacoustics See All Acoustic End-of-Line Test Systems See All Academy See All Resource Center See All Applications See All Industries See All Services See All Support See All Our Business See All Our History See All Global Presence
arrow_back_ios

Main Menu

See All nCode - Durability and Fatigue Analysis See All ReliaSoft - Reliability Analysis and Management See All Test Data Management See All DAQ Software See All Drivers & API See All Utility See All Vibration Control See All High Precision and Calibration Systems See All DAQ Systems See All S&V Hand-held Devices See All Industrial Electronics See All Power Analyzer See All S&V Signal Conditioner See All Acoustic See All Current and Voltage Sensors See All Displacement See All Force sensors See All Load Cells See All Pressure See All Strain Gauges See All Temperature Sensors See All Torque Sensors See All Vibration See All Accessories for Vibration Testing Equipment See All Vibration Controllers See All Measurement Exciters See All Modal Exciters See All Power Amplifiers See All LDS Shaker Systems See All Test Solutions See All Actuators See All Combustion Engines See All Durability See All eDrive See All Production Testing Sensors See All Transmission & Gearboxes See All Turbo Charger See All Training Courses See All Acoustics See All Asset & Process Monitoring See All Custom Sensors See All Data Acquisition & Analysis See All Durability & Fatigue See All Electric Power Testing See All NVH See All Reliability See All Smart Sensors See All Vibration See All Weighing See All Automotive & Ground Transportation See All Calibration See All Installation, Maintenance & Repair See All Support Brüel & Kjær See All Release Notes See All Compliance See All BKSV Worldwide Contacts
arrow_back_ios

Main Menu

See All API See All Microphone Cartridges See All Microphone Sets See All Microphone Pre-amplifiers See All Sound Sources See All Acoustic Calibrators See All Special Microphones See All Accessories for acoustic transducers See All Experimental testing See All Transducer Manufacturing (OEM) See All Piezoelectric Charge Accelerometers See All Piezoelectric CCLD (IEPE) accelerometers See All Electroacoustics See All Noise Source Identification See All Environmental Noise See All Sound Power and Sound Pressure See All Noise Certification See All Industrial Process Control See All Structural Health Monitoring See All Electrical Devices Testing See All Electrical Systems Testing See All Grid Testing See All High-Voltage Testing See All Vibration Testing with Electrodynamic Shakers See All Structural Dynamics See All Machine Analysis and Diagnostics See All Dynamic Weighing See All Vehicle Electrification See All Calibration Services for Transducers See All Calibration Services for Handheld Instruments See All Calibration Services for Instruments & DAQ See All On-Site Calibration See All Resources See All Software License Management

Hearing loss at call centres

Kindai University, japan

Introduction

Noise-induced hearing loss is the second most common occupational disease. For years it was believed that being a call-centre operator was a low-risk occupation. But personal-injury claims from call-centre workers are on the rise.

In 2012 – 13, Professor Setsuo Maeda of Kindai University*, Japan carried out research at a call centre on the island of Okinawa. Dr Maeda compared the noise-exposure risks and speech intelligibility of traditional headsets with those of the latest bone-conducting devices, using technology from Brüel & Kjær.

chevron_left
chevron_right
knowledge, resource center, case studies, kinki university

No scientific, controlled acoustic experiments had been conducted with actual call-centre workers to compare the two leading headset technologies. There was a need to establish baseline measurements and to conduct carefully monitored changes in hearing. This required a carefully designed experiment coupled with highly sensitive measurement equipment.

Using a Head and Torso Simulator (HATS), measurements were made over a six-day period. To evaluate the relative merits and dangers of the two alternative systems, incoming call signals were divided between two headsets used in parallel by HATS and workers making real calls. A Personal Noise Dose Meter Type 4448 was also used.

“My conclusion is that hearing damage could occur at levels above 90 dB(A),” says Dr Maeda. He has also reported: “bone conducting devices help to prevent hearing loss.” This has since been confirmed by studies carried out at the University of Southampton in the United Kingdom – to the benefit of call-centre workers the world over.

* Formerly Kinki University

KINDAI UNIVERSITY

Kindai University was founded in 1925. Now one of Japan’s largest universities, it has six campuses in western Japan and boasts research facilities across the nation—from Hokkaido in the north to Kagoshima in the south. Currently, Kindai University comprises 15 faculties with 49 departments, 11 graduate schools, 18 research facilities, two junior colleges, 18 associated primary and secondary schools, and two teaching hospitals. The university has over 30,000 students and more than 550,000 alumni.

About Kindai University

Kindai logo

Technology used

Other case studies

No more result to load