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：US20190007781A1

公开(公告)日：2019-01-03

申请号：US15672058

申请日：2017-08-08

Applicant: QUALCOMM Incorporated

Inventor： Nils Günther Peters ,  Dipanjan Sen ,  Thomas Stockhammer

IPC: H04S7/00 ,  G06F3/01 ,  H04R1/40 ,  H04R1/02 ,  G06F3/16

CPC classification number: H04S7/303 ,  G06F3/013 ,  G06F3/165 ,  G06T19/006 ,  H04R1/028 ,  H04R1/406 ,  H04R2420/07 ,  H04S3/008 ,  H04S2400/11 ,  H04S2400/15 ,  H04S2420/11

Abstract: An example device includes a memory device, and a processor coupled to the memory device. The memory is configured to store a plurality of representations of a soundfield. The processor is configured to track a steering angle provided by one or more angles associated with the device, and to select, based on the steering angle, a representation of the soundfield from the plurality of representations stored to the memory device.

公开(公告)号：US20180357038A1

公开(公告)日：2018-12-13

申请号：US15619026

申请日：2017-06-09

Applicant: QUALCOMM Incorporated

Inventor： Ferdinando Olivieri ,  Jason Filos ,  Shankar Thagadur Shivappa ,  Dipanjan Sen

IPC: G06F3/16 ,  G06F3/01 ,  G10L19/008 ,  H04S7/00

CPC classification number: G06F3/165 ,  G06F3/017 ,  G06F3/162 ,  G06F3/167 ,  G10L19/008 ,  H04S7/303 ,  H04S2420/11

Abstract: An apparatus includes a network interface configure to receive an audio bitstream. The audio bitstream includes encoded audio associated with one or more audio objects and audio metadata indicating one or more sound attributes of the one or more audio objects. The apparatus also includes a memory configured to store the encoded audio and the audio metadata. The apparatus further includes a controller configured to receive an indication to adjust a particular sound attribute of the one or more sound attributes. The particular sound attribute is associated with a particular audio object of the one or more audio objects. The controller is also configured to modify the audio metadata, based on the indication, to generate modified audio metadata.

公开(公告)号：US20180317006A1

公开(公告)日：2018-11-01

申请号：US15727223

申请日：2017-10-06

Applicant: QUALCOMM Incorporated

Inventor： Wade Heimbigner ,  Ricardo De Jesus Bernal Castillo ,  Dipanjan Sen

IPC: H04R3/02 ,  H04R3/00

CPC classification number: H04R5/027

Abstract: A microphone device includes a microphone array configured to capture one or more audio objects associated with a three-dimensional sound field. The microphone array includes a first cluster and a second cluster. The first cluster includes a first set of two or more microphone elements and the second cluster includes a second set of two or more microphone elements. The microphone device also includes a processor coupled to the microphone array. The processor is configured to receive directionality information associated with a sound source. The processor is also configured to select a first microphone element configuration for the first cluster based on a condition, the directionality information, or both. Each microphone element of the first set of two or more microphone elements is deactivated in response to selection of the first microphone element configuration.

公开(公告)号：US20180077507A1

公开(公告)日：2018-03-15

申请号：US15266776

申请日：2016-09-15

Applicant: QUALCOMM Incorporated

Inventor： Ricardo De Jesus Bernal Castillo ,  Daniel Weber ,  Dipanjan Sen ,  Eric Mattis ,  Mark Cherry ,  Nils Günther Peters

IPC: H04R29/00 ,  H04R3/04 ,  G01H17/00

CPC classification number: H04R29/005 ,  G01H17/00 ,  G01P15/097 ,  G01P15/125 ,  H04R1/406 ,  H04R3/00 ,  H04R3/04 ,  H04R29/004 ,  H04R2201/401 ,  H04R2410/05 ,  H04R2430/03

Abstract: A method for reducing vibration noise by an electronic device is described. The method includes obtaining an audio signal. The audio signal includes vibration noise. The method also includes obtaining vibration data from one or more motion sensor signals. The method further includes processing the vibration data to produce microphone-response matched vibration data based on a transfer function. The method additionally includes reducing the vibration noise based on the microphone-response matched vibration data.

公开(公告)号：US09883310B2

公开(公告)日：2018-01-30

申请号：US14724615

申请日：2015-05-28

Applicant: QUALCOMM Incorporated

Inventor： Nils Günther Peters ,  Dipanjan Sen ,  Martin James Morrell

IPC: H04S3/02 ,  H04S7/00 ,  G10L19/008

CPC classification number: H04S3/02 ,  G10L19/008 ,  H04S7/30 ,  H04S7/301 ,  H04S2420/03 ,  H04S2420/11

Abstract: In general, techniques are described for obtaining audio rendering information in a bitstream. A device configured to render higher order ambisonic coefficients comprising a processor and a memory may perform the techniques. The processor may be configured to obtain sign symmetry information indicative of sign symmetry of a matrix used to render the higher order ambisonic coefficients to generate a plurality of speaker feeds. The memory may be configured to store the sparseness information.

公开(公告)号：US09788133B2

公开(公告)日：2017-10-10

申请号：US15041965

申请日：2016-02-11

Applicant: QUALCOMM Incorporated

Inventor： Dipanjan Sen ,  Pei Xiang

IPC: H04R5/00 ,  H04S3/00 ,  H04S7/00 ,  H04H20/89 ,  G10L19/008 ,  G10L19/18 ,  H04L29/06 ,  G10L19/16

CPC classification number: H04S3/006 ,  G10L19/008 ,  G10L19/167 ,  G10L19/18 ,  H04H20/89 ,  H04L65/605 ,  H04S3/002 ,  H04S3/008 ,  H04S7/30 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2400/07 ,  H04S2400/15 ,  H04S2420/11

Abstract: Systems, methods, and apparatus for backward-compatible coding of a set of basis function coefficients that describe a sound field are presented.

公开(公告)号：US09774977B2

公开(公告)日：2017-09-26

申请号：US15247364

申请日：2016-08-25

Applicant: QUALCOMM Incorporated

Inventor： Nils Günther Peters ,  Dipanjan Sen

IPC: H04S5/00 ,  G10L19/008 ,  G06F17/16 ,  G10L19/06 ,  G10L25/18 ,  H04S7/00 ,  G10L19/002 ,  G10L19/038 ,  G10L19/02 ,  G10L19/16 ,  G10L19/20 ,  G10L19/00

CPC classification number: H04S5/005 ,  G06F17/16 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/038 ,  G10L19/06 ,  G10L19/167 ,  G10L19/20 ,  G10L25/18 ,  G10L2019/0001 ,  G10L2019/0005 ,  H04R2205/021 ,  H04S7/30 ,  H04S7/304 ,  H04S7/40 ,  H04S2400/01 ,  H04S2400/15 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/11

Abstract: In general, techniques are described for obtaining spherical harmonic coefficients (SHC). A device comprising a processor and a memory may be configured to perform the techniques. The processor may obtain a set of coefficients of a vector representative a distinct component of a sound field, the vector having been decomposed from SHC representative of the sound field. The processor may obtain a configuration mode by which to extract the coefficients, where the configuration mode indicates that the coefficients include coefficients corresponding to an order greater than an order of a basis function to which one or more of the spherical harmonic coefficients correspond and exclude at least one of the coefficients corresponding to a greater order. The processor may extract the coefficients of the vector based on the obtained configuration mode. The memory may be configured to store the non-zero set of the coefficients of the vector.

公开(公告)号：US09763019B2

公开(公告)日：2017-09-12

申请号：US14289234

申请日：2014-05-28

Applicant: QUALCOMM Incorporated

Inventor： Nils Günther Peters ,  Dipanjan Sen

IPC: G06F17/00 ,  H04S5/00 ,  G10L19/008 ,  G06F17/16 ,  G10L19/06 ,  G10L25/18 ,  H04S7/00 ,  G10L19/002 ,  G10L19/038 ,  G10L19/02 ,  G10L19/16 ,  G10L19/20 ,  G10L19/00

CPC classification number: H04S5/005 ,  G06F17/16 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/038 ,  G10L19/06 ,  G10L19/167 ,  G10L19/20 ,  G10L25/18 ,  G10L2019/0001 ,  G10L2019/0005 ,  H04R2205/021 ,  H04S7/30 ,  H04S7/304 ,  H04S7/40 ,  H04S2400/01 ,  H04S2400/15 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/11

Abstract: In general, techniques are described for identifying distinct audio objects from spherical harmonic coefficients (which may also be denotes as higher order ambisonic coefficients). A device comprising one or more processors may perform the techniques so as to identify the distinct audio objects from the spherical harmonic coefficients (SHC) associated with the audio objects based on a directionality determined for one or more of the audio objects.

公开(公告)号：US09749768B2

公开(公告)日：2017-08-29

申请号：US15247244

申请日：2016-08-25

Applicant: QUALCOMM Incorporated

Inventor： Nils Günther Peters ,  Dipanjan Sen

IPC: H04S5/00 ,  G10L19/008 ,  G06F17/16 ,  G10L19/06 ,  G10L25/18 ,  H04S7/00 ,  G10L19/002 ,  G10L19/038 ,  G10L19/02 ,  G10L19/16 ,  G10L19/20 ,  G10L19/00

CPC classification number: H04S5/005 ,  G06F17/16 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/038 ,  G10L19/06 ,  G10L19/167 ,  G10L19/20 ,  G10L25/18 ,  G10L2019/0001 ,  G10L2019/0005 ,  H04R2205/021 ,  H04S7/30 ,  H04S7/304 ,  H04S7/40 ,  H04S2400/01 ,  H04S2400/15 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/11

Abstract: In general, techniques are described for obtaining decomposed versions of spherical harmonic coefficients. A device comprising a processor and a memory may be configured to perform the techniques. The processor may obtain a non-zero set of coefficients of a vector representative a distinct component of a sound field. The vector may have been decomposed from a plurality of spherical harmonic coefficients that describe the sound field. The processor may also obtain one of a plurality of configuration modes by which to extract the non-zero set of coefficients of the vector, where the one of the configuration modes indicates that the coefficients include all of the coefficients except for at least one of the coefficients. The processor may further extract the coefficients of the vector based on the obtained one of the configuration modes. The memory may be configured to store the non-zero set of the coefficients of the vector.