公开(公告)号：US20240274139A1

公开(公告)日：2024-08-15

申请号：US18644449

申请日：2024-04-24

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Guillaume FUCHS ,  Jürgen HERRE ,  Fabian KÜCH ,  Stefan DÖHLA ,  Markus MULTRUS ,  Oliver THIERGART ,  Oliver WÜBBOLT ,  Florin GHIDO ,  Stefan BAYER ,  Wolfgang JAEGERS

IPC分类号： G10L19/008 ,  G10L19/02 ,  G10L19/032 ,  G10L19/038 ,  G10L19/16 ,  G10L19/26 ,  H03M7/30

CPC分类号： G10L19/008 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/038 ,  G10L19/167 ,  G10L19/26 ,  H03M7/3082 ,  H03M7/6005 ,  H03M7/6011

摘要： An apparatus for encoding directional audio coding parameters comprising diffuseness parameters and direction parameters having a parameter calculator (100) for calculating the diffuseness parameters with a first time or frequency resolution and for calculating the direction parameters with a second time or frequency resolution; and a quantizer and encoder processor (200) for generating a quantized and encoded representation of the diffuseness parameters and the direction parameters.

公开(公告)号：US20240087582A1

公开(公告)日：2024-03-14

申请号：US18515502

申请日：2023-11-21

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Jürgen HERRE ,  Florin GHIDO

IPC分类号： G10L19/022

CPC分类号： G10L19/022

摘要： There are disclosed apparatus and methods for encoding and decoding of acoustic environment.
In accordance with an example, there is provided an apparatus for decoding an acoustic environment, the acoustic environment including at least one audio source and at least one audio object, the at least one audio object being represented by a structural-acoustic data which links positional data of polygons with acoustic properties of acoustic materials, wherein the positional data includes, for each polygon, the position of the vertexes, the apparatus comprising:



a bitstream reader for reading, from the bitstream, an encoded version of structural-acoustic data and at least one audio stream to be rendered as generated by the at least one audio source in the acoustic environment;
an audio source decoding block to decode the at least one an audio stream representing the at least one audio source;
a structural-acoustic data decoding block to decode the structural-acoustic data.

公开(公告)号：US20220150635A1

公开(公告)日：2022-05-12

申请号：US17585169

申请日：2022-01-26

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Guillaume FUCHS ,  Jürgen HERRE ,  Fabian KÜCH ,  Stefan DÖHLA ,  Markus MULTRUS ,  Oliver THIERGART ,  Oliver WÜBBOLT ,  Florin GHIDO ,  Stefan BAYER ,  Wolfgang JAEGERS

IPC分类号： H04R5/04 ,  H04S7/00

摘要： An apparatus for generating a description of a combined audio scene, includes: an input interface for receiving a first description of a first scene in a first format and a second description of a second scene in a second format, wherein the second format is different from the first format; a format converter for converting the first description into a common format and for converting the second description into the common format, when the second format is different from the common format; and a format combiner for combining the first description in the common format and the second description in the common format to obtain the combined audio scene.

公开(公告)号：US20190272836A1

公开(公告)日：2019-09-05

申请号：US16415490

申请日：2019-05-17

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Alexander ADAMI ,  Jürgen HERRE ,  Sascha DISCH ,  Florin GHIDO

IPC分类号： G10L19/022 ,  G10L19/008 ,  G10L21/028 ,  G10L21/0232 ,  H04S3/00

摘要： An apparatus for decomposing an audio signal into a background component signal and a foreground component signal, has: a block generator for generating a time sequence of blocks of audio signal values; an audio signal analyzer for determining a characteristic of a current block of the audio signal and for determining a variability of the characteristic within a group of blocks having at least two blocks of the sequence of blocks; and a separator for separating the current block into a background portion and a foreground portion wherein the separator is configured to determine a separation threshold based on the variability and to separate the current block into the background component signal and the foreground component signal, when the characteristic of the current block is in a predetermined relation to the separation threshold.

公开(公告)号：US20220130404A1

公开(公告)日：2022-04-28

申请号：US17571970

申请日：2022-01-10

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Guillaume FUCHS ,  Jürgen HERRE ,  Fabian KÜCH ,  Stefan DÖHLA ,  Markus MULTRUS ,  Oliver THIERGART ,  Oliver WÜBBOLT ,  Florin GHIDO ,  Stefan BAYER ,  Wolfgang JAEGERS

IPC分类号： G10L19/038 ,  G10L19/008 ,  G10L19/16 ,  G10L19/26 ,  G10L19/02 ,  G10L19/032 ,  H03M7/30

摘要： An apparatus for encoding directional audio coding parameters comprising diffuseness parameters and direction parameters having a parameter calculator (100) for calculating the diffuseness parameters with a first time or frequency resolution and for calculating the direction parameters with a second time or frequency resolution; and a quantizer and encoder processor (200) for generating a quantized and encoded representation of the diffuseness parameters and the direction parameters.

公开(公告)号：US20200273473A1

公开(公告)日：2020-08-27

申请号：US16871223

申请日：2020-05-11

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Guillaume FUCHS ,  Jürgen HERRE ,  Fabian KÜCH ,  Stefan DÖHLA ,  Markus MULTRUS ,  Oliver THIERGART ,  Oliver WÜBBOLT ,  Florin GHIDO ,  Stefan BAYER ,  Wolfgang JAEGERS

IPC分类号： G10L19/032 ,  G10L19/02 ,  G10L19/008 ,  H03M7/30

摘要： An apparatus for encoding directional audio coding parameters including diffuseness parameters and direction parameters includes: a parameter calculator for calculating the diffuseness parameters with a first time or frequency resolution and for calculating the direction parameters with a second time or frequency resolution; and a quantizer and encoder processor for generating a quantized and encoded representation of the diffuseness parameters and the direction parameters.

公开(公告)号：US20190272835A1

公开(公告)日：2019-09-05

申请号：US16415392

申请日：2019-05-17

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Alexander ADAMI ,  Jürgen HERRE ,  Sascha DISCH ,  Florin GHIDO

IPC分类号： G10L19/022 ,  G10L19/008 ,  G10L21/028 ,  G10L21/0232 ,  H04S3/00

摘要： An apparatus for decomposing an audio signal into a background component signal and a foreground component signal includes: a block generator for generating a time sequence of blocks of audio signal values; an audio signal analyzer for determining a block characteristic of a current block of the audio signal and for determining an average characteristic for a group of blocks, the group of blocks including at least two blocks; and a separator for separating the current block into a background portion and a foreground portion in response to a ratio of the block characteristic of the current block and the average characteristic of the group of blocks, wherein the background component signal includes the background portion of the current block and the foreground component signal includes the foreground portion of the current block.

公开(公告)号：US20230317088A1

公开(公告)日：2023-10-05

申请号：US18330953

申请日：2023-06-07

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Guillaume FUCHS ,  Stefan BAYER ,  Markus MULTRUS ,  Oliver THIERGART ,  Alexandre BOUTHÉON ,  Jürgen HERRE ,  Florin GHIDO ,  Wolfgang JAEGERS ,  Fabian KÜCH

IPC分类号： H04R3/12 ,  H04S7/00 ,  G10L19/008 ,  H04R3/00 ,  G10L19/032 ,  H04R3/04 ,  H04R5/04

CPC分类号： G10L19/032 ,  G10L19/008 ,  H04R3/005 ,  H04R3/04 ,  H04R3/12 ,  H04R5/04 ,  H04S7/307 ,  H04S2420/11

摘要： An audio scene encoder for encoding an audio scene, the audio scene having at least two component signals, has: a core encoder for core encoding the at least two component signals, wherein the core encoder is configured to generate a first encoded representation for a first portion of the at least two component signals, and to generate a second encoded representation for a second portion of the at least two component signals, a spatial analyzer for analyzing the audio scene to derive one or more spatial parameters or one or more spatial parameter sets for the second portion; and an output interface for forming the encoded audio scene signal, the encoded audio scene signal having the first encoded representation, the second encoded representation, and the one or more spatial parameters or one or more spatial parameter sets for the second portion.

公开(公告)号：US20200265851A1

公开(公告)日：2020-08-20

申请号：US16867856

申请日：2020-05-06

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Guillaume FUCHS ,  Jürgen HERRE ,  Fabian KÜCH ,  Stefan DÖHLA ,  Markus MULTRUS ,  Oliver THIERGART ,  Oliver WÜBBOLT ,  Florin GHIDO ,  Stefan BAYER ,  Wolfgang JAEGERS

IPC分类号： G10L19/038 ,  G10L19/008 ,  G10L19/26 ,  G10L19/16

摘要： An apparatus for encoding directional audio coding parameters having diffuseness parameters and direction parameters, has: a parameter quantizer for quantizing the diffuseness parameters and the direction parameters; a parameter encoder for encoding quantized diffuseness parameters and quantized direction parameters; and an output interface for generating an encoded parameter representation having information on encoded diffuseness parameters and encoded direction parameters.

公开(公告)号：US20200221230A1

公开(公告)日：2020-07-09

申请号：US16821069

申请日：2020-03-17

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Guillaume FUCHS ,  Jürgen HERRE ,  Fabian KÜCH ,  Stefan DÖHLA ,  Markus MULTRUS ,  Oliver THIERGART ,  Oliver WÜBBOLT ,  Florin GHIDO ,  Stefan BAYER ,  Wolfgang JAEGERS

IPC分类号： H04R5/04 ,  H04S7/00

摘要： An apparatus for generating a description of a combined audio scene, includes: an input interface for receiving a first description of a first scene in a first format and a second description of a second scene in a second format, wherein the second format is different from the first format; a format converter for converting the first description into a common format and for converting the second description into the common format, when the second format is different from the common format; and a format combiner for combining the first description in the common format and the second description in the common format to obtain the combined audio scene.