公开(公告)号：US20240195916A1

公开(公告)日：2024-06-13

申请号：US18555018

申请日：2022-03-24

Applicant: RTX A/S

Inventor： Sebastian Biegel SCHIØLER ,  Christian BRANDT

IPC: H04M3/56 ,  G10L21/0216 ,  G10L21/0232 ,  G10L21/034 ,  G10L21/0364 ,  G10L25/84 ,  H04R1/10 ,  H04R3/00

CPC classification number: H04M3/568 ,  G10L21/0232 ,  G10L21/034 ,  G10L21/0364 ,  G10L25/84 ,  H04R1/1041 ,  H04R3/005 ,  G10L2021/02165 ,  G10L2021/02166 ,  H04R2201/107 ,  H04R2410/05 ,  H04R2420/07

Abstract: A method and device, e.g. a headset, for notifying a user of a mute state of a primary microphone during a call, in case the user speaks while the primary microphone is muted. The method comprises performing a noise cancellation algorithm (ENC) on output signals from the primary microphone and on output signals from an additional microphone capturing sound in the user's surroundings to suppress surrounding noise at the user location. Further processing output signals from the primary microphone according to a Voice Activity Detection (VAD) algorithm by means of a processor system while the primary microphone is muted. The VAD algorithm is used to determine if speech is present, and next it is determined if an additional condition if fulfilled. Then, finally providing a mute state notification to the user only if it is determined that speech is present and the additional condition is fulfilled.