智能火花测试
An often-used method to measure response accuracy rate in voice-operated devices is called“RAR”.The idea is to replay a recorded voice from aspeaker in order to evaluate if and how often a voice command is recognized.However asthedirectional character and frequency range of a human voice is different,this method can produce misleading results。
Smart speaker testing standards and requirements
In aroom,good acoustics require a design that is fit for purpose,such as easy communication and a high degree of intelligibility in office spaces or long reverberation times in concert halls.Issues with acoustics are normally caused by sound being reflected too much,too little or in the wrong rection。
速度和热模拟
To achieve the best result,Brüel&Kjér offers market-leading Mouth and Ear simulators,which provide high ly accurate means to secure quality in testing of voice-operated products。
Brüel&Kjér’s High-frequency Head and Torso Simulator complies with key features defined in the ITU-T P.58 standard for Objective Measurement Apparatus。