arrow_back_ios

Main Menu

See All Simulação e Análise See All DAQ See All Drivers API See All Utilitário See All Controle de vibração See All Calibração See All DAQ See All Portátil See All Industrial See All Analisadores de potência See All Condicionadores de sinal See All Acústica See All Tensão e Corrente See All Deslocamento See All Força See All Células de carga See All Multicomponente See All Pressão See All Deformação See All Strain Gauges See All Temperatura See All Inclinação See All Torque See All Vibração See All Acessórios See All Controladores See All Excitadores de medição See All Excitadores modais See All Amplificadores de potência See All Sistemas Shaker See All Soluções de teste See All Atuadores See All Motores de combustão See All Durabilidade See All eDrive See All Sensores de teste de produção See All Caixas de transmissão See All Turbo Charger See All Acústica See All Monitorização de activos e processos See All Energia eléctrica See All NVH See All Sensores personalizados do OEM See All Integridade estrutural See All Vibração See All Transporte automotivo e terrestre
arrow_back_ios

Main Menu

See All nCode - Análise de Durabilidade e Fadiga See All ReliaSoft - Análise e gerenciamento de confiabilidade See All API See All Eletroacústica See All Ruído ambiental See All Identificação da Fonte de Ruído See All Ruído do produto See All Potência Sonora e Pressão Sonora See All Ruído de passagem de veículos See All Teste de produção e garantia de qualidade See All Análise e Diagnóstico de Máquinas See All Monitoramento de integridade estrutural See All Teste de bateria See All Introdução à Medição de Energia Elétrica Durante Transitórios See All Diagrama de circuito equivalente do transformador | HBM See All Sensores OEM para a indústria agrícola See All Sensores OEM para aplicações robóticas e de torque See All Dinâmica estrutural See All Ensaio das propriedades dos materiais

Teste de dispositivos mãos-livres

When evaluating the acoustic performance of hands-free communication devices, it is important to take into consideration the surroundings, as well as the acoustic influence of the head and body.

In addition to traditional parameters for characterization of communication devices, such as frequency response, loudness rating and directivity response, it is necessary to determine transmission quality in the presence of background noise, switching, and echo cancelling, as these are known to have close correlation with the audio performance and perceived quality of the reproduction of the human voice of hands-free equipment.

System suggestion

Testing of hands-free devices system overview

For testing hands-free devices, we suggest a system that simulates real life communication situations as closely as possible, without letting the physical presence of a human interfere with the measurements.

The system consists of a HATS with ear and mouth simulators, a measurement front end and the PULSE-based Voice Testing Software for Hands-free-equipment Type 7909-NS1. The software has capabilities for both data acquisition and data analysis, according to standards set by VDA (Verband der Automobilindustrie). The system can be used in a lab setting and for in-vehicle testing of audio performance

 

TYPE 7907-NS1

PULSE Electroacoustics Type 7907-NS1

A versatile platform for electroacoustic transducer evaluation, PULSE Electroacoustics includes a wide range of advanced analysis capabilities required by audio engineers working in acoustical design research and development.

Electroacoustic test automation and data management

PULSE software for automating repetitive test sequences by scripting, and for archiving results for easy recall and overviewing

TYPE 4128-C

Head and Torso Simulator (HATS)

Designed to be used for in situ electroacoustics tests on, for example, telephone handsets, headsets, audio conference devices, microphones, headphones, hearing aids, hearing protectors and smart speakers.

TYPE 3160

Generator Module

Designed for applications where system excitation is required, such as audio and electro-acoustic test applications.

TYPE 2735

Measurement Power Amplifier

A compact, highperformance, 2 × 35 W power amplifier designed for electroacoustic and general-purpose applications.

TYPE 4938-A-011

1/4" Pressure-field Microphone With Preamplifier Type 2670, Ext. Polarized

Pressure-field TEDS Microphone designed for high-level and high-frequency measurements with a frequency response of 4 Hz to 70 kHz.