公开(公告)号：US20220014850A1

公开(公告)日：2022-01-13

申请号：US17297330

申请日：2019-10-25

申请人： ams Sensors UK Limited

发明人： Robert Alcock

IPC分类号： H04R3/04 ,  H04R1/10 ,  H04R29/00 ,  G10L21/0232 ,  G10L21/0264

摘要： In a method for tuning at least one parameter of a noise cancellation enabled audio system with an ear mountable playback device comprising a speaker and a feedforward microphone the playback device is placed onto a measurement fixture, the speaker facing a test microphone located within an ear canal representation. The parameter is varied between a plurality of settings while a test sound is played. A measurement signal from the test microphone is received and stored in the audio system at least while the parameter is varied. A power minimum in the stored measurement signal and a tune parameter associated with the power minimum are determined in the audio system from the plurality of settings of the varied parameter.