公开(公告)号：US20180108341A1

公开(公告)日：2018-04-19

申请号：US15786873

申请日：2017-10-18

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Nigel BURGESS ,  Mark Allan WATTS ,  Darren HOLDING

IPC: G10K11/178 ,  G06F3/16

CPC classification number: G10K11/178 ,  G06F3/165 ,  G10K11/17853 ,  G10K11/17881 ,  G10K11/17885 ,  G10K2210/108 ,  G10K2210/3045 ,  G10K2210/3056

Abstract: A method of controlling an audio system comprises: receiving an audio signal, and applying a first gain to the audio signal and outputting an amplified audio signal. On receiving a user input to increase the first gain applied to the audio signal, if the first gain is at a first threshold value, the method comprises: receiving an ambient noise signal, processing the ambient noise signal with a second gain value and outputting a noise cancellation signal, and changing the second gain value in response to the user input.