公开(公告)号：EP3678136A1

公开(公告)日：2020-07-08

申请号：EP19219425.6

申请日：2019-12-23

Applicant: STMicroelectronics Inc. ,  STMicroelectronics International N.V.

Inventor： CHOWDHARY, Mahesh ,  KUMAR, Arun ,  SINGH, Ghanapriya ,  BAHL, Rajendar

IPC: G10L25/51 ,  H04M1/725 ,  H04W4/38 ,  G10L25/24

Abstract: A method and apparatus for classifying a spatial environment as open or enclosed are provided. In the method and apparatus, one or more microphones (102) detect ambient sound in a spatial environment and output an audio signal representative of the ambient sound. A processor (104) determines a spatial environment impulse response (SEIR) for the audio signal and extracts one or more features of the SEIR. The processor classifies the spatial environment as open or enclosed based on the one or more features of the SEIR.