公开(公告)号：US20190253826A1

公开(公告)日：2019-08-15

申请号：US16393602

申请日：2019-04-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peter GROSCHE ,  Franz ZOTTER ,  Christian SCHÖRKHUBER ,  Matthias FRANK ,  Robert HÖLDRICH

IPC: H04S7/00 ,  G10L19/008 ,  H04R1/40 ,  H04R3/00 ,  H04R3/12 ,  H04R5/02 ,  H04R5/04 ,  H04S3/00

CPC classification number: H04S7/303 ,  G10L19/008 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R3/12 ,  H04R5/02 ,  H04R5/04 ,  H04R2430/01 ,  H04S3/008 ,  H04S7/30 ,  H04S7/302 ,  H04S7/304 ,  H04S2400/01 ,  H04S2400/15

Abstract: A method for acoustic scene playback is described, which comprises: providing recording data comprising microphone signals of microphone setups positioned within an acoustic scene and microphone metadata of the microphone setups, each of the microphone setups has a recording spot which is a center position of the respective microphone setup; specifying a virtual listening position within the acoustic scene; assigning each microphone setup Virtual Loudspeaker Objects, VLOs, wherein each VLO is an abstract sound output object within a virtual free field; generating an encoded data stream based on the recording data, the virtual listening position and VLO parameters of the VLOs assigned to the microphone setups; and decoding the encoded data stream based on a playback setup, thereby generating a decoded data stream; and feeding the decoded data stream to a rendering device, thereby driving the rendering device to reproduce sound of the acoustic scene at the virtual listening position.