公开(公告)号：US10785588B2

公开(公告)日：2020-09-22

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

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.

公开(公告)号：US10602267B2

公开(公告)日：2020-03-24

申请号：US15978688

申请日：2018-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peter Grosche ,  Karim Helwani ,  Christian Schörkhuber ,  Franz Zotter ,  Robert Höldrich ,  Matthias Frank

IPC: H04R3/00 ,  G10L25/21 ,  H03G3/20 ,  H04R1/40 ,  H04R3/04

Abstract: A sound signal processing apparatus including a plurality of microphones, where each microphone is configured to receive the sound signal from the target source, a processor configured to estimate a first power measure on the basis of the sound signal from the target source received by a first microphone of the microphones and a second power measure on the basis of the sound signal from the target source received by at least a second microphone of the microphones, which is located more distant from the target source than the first microphone, and the processor is further configured to determine a gain factor on the basis of a ratio between the second power measure and the first power measure, and an amplifier configured to apply the gain factor to the sound signal from the target source received by the first microphone.

公开(公告)号：US20180262832A1

公开(公告)日：2018-09-13

申请号：US15978688

申请日：2018-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peter Grosche ,  Karim Helwani ,  Christian Schörkhuber ,  Franz Zotter ,  Robert Höldrich ,  Matthias Frank

IPC: H04R3/00 ,  H04R1/40 ,  G10L25/21 ,  H04R3/04 ,  H03G3/20

CPC classification number: H04R3/005 ,  G10L25/21 ,  H03G3/20 ,  H03G3/3005 ,  H04R1/406 ,  H04R3/04 ,  H04R2430/01

Abstract: A sound signal processing apparatus including a plurality of microphones, where each microphone is configured to receive the sound signal from the target source, a processor configured to estimate a first power measure on the basis of the sound signal from the target source received by a first microphone of the microphones and a second power measure on the basis of the sound signal from the target source received by at least a second microphone of the microphones, which is located more distant from the target source than the first microphone, and the processor is further configured to determine a gain factor on the basis of a ratio between the second power measure and the first power measure, and an amplifier configured to apply the gain factor to the sound signal from the target source received by the first microphone.