公开(公告)号：US10477310B2

公开(公告)日：2019-11-12

申请号：US15836660

申请日：2017-12-08

Applicant: QUALCOMM Incorporated

Inventor： S M Akramus Salehin ,  Ricardo De Jesus Bernal Castillo ,  Michael Ericson ,  Ferdinando Olivieri ,  Nils Gunther Peters ,  Dipanjan Sen

IPC: H04R3/00 ,  H04S7/00 ,  H04R1/40

Abstract: A method includes performing, at a processor, signal processing operations on signals captured by each microphone in a microphone array. The method also includes performing a first directivity adjustment by applying a first set of multiplicative factors to the signals to generate a first set of ambisonic signals. The first set of multiplicative factors is determined based on a position of each microphone in the microphone array, an orientation of each microphone in the microphone array, or both.

公开(公告)号：US20190069083A1

公开(公告)日：2019-02-28

申请号：US15836660

申请日：2017-12-08

Applicant: QUALCOMM Incorporated

Inventor： S M Akramus Salehin ,  Ricardo De Jesus Bernal Castillo ,  Michael Ericson ,  Ferdinando Olivieri ,  Nils Gunther Peters ,  Dipanjan Sen

IPC: H04R3/00 ,  H04R1/40 ,  H04S7/00

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2499/11 ,  H04S7/30 ,  H04S7/304 ,  H04S2400/11 ,  H04S2400/15 ,  H04S2420/11

Abstract: A method includes performing, at a processor, signal processing operations on signals captured by each microphone in a microphone array. The method also includes performing a first directivity adjustment by applying a first set of multiplicative factors to the signals to generate a first set of ambisonic signals. The first set of multiplicative factors is determined based on a position of each microphone in the microphone array, an orientation of each microphone in the microphone array, or both.

公开(公告)号：US10728689B2

公开(公告)日：2020-07-28

申请号：US16219714

申请日：2018-12-13

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Goutham Swaminathan ,  S M Akramus Salehin ,  Dipanjan Sen ,  Michael Ericson

IPC: H04S7/00 ,  G06F3/16 ,  G02B27/01

Abstract: Methods, systems, computer-readable media, and apparatuses for characterizing portions of a soundfield are presented. Some configurations include estimating a total energy of a soundfield associated with a scene space and, for each of at least some of a plurality of regions of the scene space, estimating an energy of a portion of the soundfield that corresponds to the region and creating a corresponding metadata field that indicates a location of the region within the space and a relation between the estimated total energy and the estimated energy that corresponds to the region.