公开(公告)号：US20190355341A1

公开(公告)日：2019-11-21

申请号：US15983646

申请日：2018-05-18

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Brenton STEELE ,  Thomas HARVEY

IPC: G10K11/178 ,  G10L25/90 ,  G10L25/93

Abstract: An apparatus for playback of captured ambient sounds. The apparatus comprises a controller comprising a first input coupled to a respective first microphone for receiving an audio signal generated by the microphone, the audio signal representative of captured ambient sounds; a second input for receiving a playback instruction to instigate playback of ambient sounds; and an output coupled to a speaker. The apparatus further comprises data memory comprising a data structure for continuously buffering a most recent portion of the audio signal as an audio snippet. In response to detection of the playback instruction at the second input, the controller is configured to determine an output audio signal based on the audio snippet and provide the audio output signal to the output for substantially immediate playback through the speaker.