公开(公告)号：US20250061902A1

公开(公告)日：2025-02-20

申请号：US18940536

申请日：2024-11-07

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

Inventor： Bernhard GRILL ,  Roch LEFEBVRE ,  Bruno BESSETTE ,  Jimmy LAPIERRE ,  Philippe GOURNAY ,  Redwan SALAMI ,  Stefan BAYER ,  Guillaume FUCHS ,  Stefan GEYERSBERGER ,  Ralf GEIGER ,  Johannes HILPERT ,  Ulrich KRAEMER ,  Jérémie LECOMTE ,  Markus MULTRUS ,  Max NEUENDORF ,  Harald POPP ,  Nikolaus RETTELBACH

IPC: G10L19/008 ,  G10L19/00 ,  G10L19/02 ,  G10L19/16 ,  G10L19/18

Abstract: An audio encoder has a first information sink oriented encoding branch such as a spectral domain encoding branch, a second information source or SNR oriented encoding branch such as an LPC-domain encoding branch, and a switch for switching between the first and second encoding branches, the second encoding branch having a converter into a specific domain different from the spectral domain such as an LPC analysis stage generating an excitation signal, and the second encoding branch having a specific domain coding branch such as LPC domain processing branch, and a specific spectral domain coding branch such as LPC spectral domain processing branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder, a second domain decoder, and a third domain decoder as well as two cascaded switches for switching between the decoders.

公开(公告)号：US20170309283A1

公开(公告)日：2017-10-26

申请号：US15643908

申请日：2017-07-07

Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.

Inventor： Nikolaus RETTELBACH ,  Bernhard GRILL ,  Guillaume FUCHS ,  Stefan GEYERSBERGER ,  Markus MULTRUS ,  Harald POPP ,  Juergen HERRE ,  Stefan WABNIK ,  Gerald SCHULLER ,  Jens HIRSCHFELD

IPC: G10L19/035 ,  G10L19/032 ,  G10L19/02 ,  G10L19/028 ,  G10L19/008 ,  G10L25/18

CPC classification number: G10L19/035 ,  G10L19/008 ,  G10L19/02 ,  G10L19/0204 ,  G10L19/028 ,  G10L19/032 ,  G10L25/18

Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error.A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

公开(公告)号：US20240420714A1

公开(公告)日：2024-12-19

申请号：US18819733

申请日：2024-08-29

Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.

Inventor： Nikolaus RETTELBACH ,  Bernhard GRILL ,  Guillaume FUCHS ,  Stefan GEYERSBERGER ,  Markus MULTRUS ,  Harald POPP ,  Juergen HERRE ,  Stefan WABNIK ,  Gerald SCHULLER ,  Jens HIRSCHFELD

IPC: G10L19/035 ,  G10L19/008 ,  G10L19/02 ,  G10L19/028 ,  G10L19/032 ,  G10L25/18

Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error.
A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

公开(公告)号：US20240096337A1

公开(公告)日：2024-03-21

申请号：US18522732

申请日：2023-11-29

Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.

Inventor： Nikolaus RETTELBACH ,  Bernhard GRILL ,  Guillaume FUCHS ,  Stefan GEYERSBERGER ,  Markus MULTRUS ,  Harald POPP ,  Juergen HERRE ,  Stefan WABNIK ,  Gerald SCHULLER ,  Jens HIRSCHFELD

IPC: G10L19/035 ,  G10L19/008 ,  G10L19/02 ,  G10L19/028 ,  G10L19/032

CPC classification number: G10L19/035 ,  G10L19/008 ,  G10L19/02 ,  G10L19/0204 ,  G10L19/028 ,  G10L19/032 ,  G10L25/18

Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error.
A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

公开(公告)号：US20250069608A1

公开(公告)日：2025-02-27

申请号：US18940483

申请日：2024-11-07

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

Inventor： Bernhard GRILL ,  Roch LEFEBVRE ,  Bruno BESSETTE ,  Jimmy LAPIERRE ,  Philippe GOURNAY ,  Redwan SALAMI ,  Stefan BAYER ,  Guillaume FUCHS ,  Stefan GEYERSBERGER ,  Ralf GEIGER ,  Johannes HILPERT ,  Ulrich KRAEMER ,  Jérémie LECOMTE ,  Markus MULTRUS ,  Max NEUENDORF ,  Harald POPP ,  Nikolaus RETTELBACH

IPC: G10L19/008 ,  G10L19/00 ,  G10L19/02 ,  G10L19/16 ,  G10L19/18

Abstract: An audio encoder has a first information sink oriented encoding branch such as a spectral domain encoding branch, a second information source or SNR oriented encoding branch such as an LPC-domain encoding branch, and a switch for switching between the first and second encoding branches, the second encoding branch having a converter into a specific domain different from the spectral domain such as an LPC analysis stage generating an excitation signal, and the second encoding branch having a specific domain coding branch such as LPC domain processing branch, and a specific spectral domain coding branch such as LPC spectral domain processing branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder, a second domain decoder, and a third domain decoder as well as two cascaded switches for switching between the decoders.

公开(公告)号：US20210272577A1

公开(公告)日：2021-09-02

申请号：US17322656

申请日：2021-05-17

Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.

Inventor： Nikolaus RETTELBACH ,  Bernhard GRILL ,  Guillaume FUCHS ,  Stefan GEYERSBERGER ,  Markus MULTRUS ,  Harald POPP ,  Juergen HERRE ,  Stefan WABNIK ,  Gerald SCHULLER ,  Jens HIRSCHFELD

IPC: G10L19/035 ,  G10L19/02 ,  G10L19/028 ,  G10L19/032 ,  G10L19/008

Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error.
A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

公开(公告)号：US20170004839A1

公开(公告)日：2017-01-05

申请号：US15266862

申请日：2016-09-15

Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.

Inventor： Nikolaus RETTELBACH ,  Bernhard GRILL ,  Guillaume FUCHS ,  Stefan GEYERSBERGER ,  Markus MULTRUS ,  Harald POPP ,  Juergen HERRE ,  Stefan WABNIK ,  Gerald SCHULLER ,  Jens HIRSCHFELD

IPC: G10L19/035 ,  G10L19/028 ,  G10L19/02 ,  G10L19/008

CPC classification number: G10L19/035 ,  G10L19/008 ,  G10L19/02 ,  G10L19/0204 ,  G10L19/028 ,  G10L19/032 ,  G10L25/18

Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error.A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

Abstract translation: 用于基于表示音频信号的频带的频带的频谱分量的编码音频流提供音频信号的解码表示的解码器包括噪声填充器，用于将噪声引入多个频带的频谱分量中，分频频带 增益信息是根据共同的多频带噪声强度值相关联的。

公开(公告)号：US20150154967A1

公开(公告)日：2015-06-04

申请号：US14580179

申请日：2014-12-22

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. ,  VoiceAge Corporation

Inventor： Bernhard GRILL ,  Roch LEFEBVRE ,  Bruno BESSETTE ,  Jimmy LAPIERRE ,  Philippe GOURNAY ,  Redwan SALAMI ,  Stefan BAYER ,  Guillaume FUCHS ,  Stefan GEYERSBERGER ,  Ralf GEIGER ,  Johannes HILPERT ,  Ulrich KRAEMER ,  Jeremie LECOMTE ,  Markus MULTRUS ,  Max NEUENDORF ,  Harald POPP ,  Nikolaus RETTELBACH

IPC: G10L19/008 ,  G10L19/16

CPC classification number: G10L19/008 ,  G10L19/0017 ,  G10L19/0212 ,  G10L19/173 ,  G10L19/18 ,  G10L2019/0008

Abstract: An audio encoder has a first information sink oriented encoding branch, a second information source or SNR oriented encoding branch, and a switch for switching between the first encoding branch and the second encoding branch, wherein the second encoding branch has a converter into a specific domain different from the spectral domain, and wherein the second encoding branch furthermore has a specific domain coding branch, and a specific spectral domain coding branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder, a second domain decoder for decoding a signal, and a third domain decoder and two cascaded switches for switching between the decoders.

Abstract translation: 音频编码器具有第一信息汇集编码分支，第二信息源或SNR定向编码分支，以及用于在第一编码分支和第二编码分支之间进行切换的开关，其中第二编码分支具有转换器到特定的域 并且其中第二编码分支还具有特定的域编码分支，以及特定频域编码分支，以及用于在特定的域编码分支与特定频域编码分支之间切换的附加开关。 音频解码器具有第一域解码器，用于对信号进行解码的第二域解码器，以及用于在解码器之间切换的第三域解码器和两个级联开关。

公开(公告)号：US20140257557A1

公开(公告)日：2014-09-11

申请号：US14282103

申请日：2014-05-20

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

Inventor： Stefan KRAEGELOH ,  Harald POPP ,  Josef BERNHARD ,  Harald FUCHS ,  Marc GAYER ,  Manfred LUTZKY ,  Thomas SPORER ,  Sandra BRIX

IPC: B65G51/03

CPC classification number: B65G51/03 ,  A63F3/00 ,  A63F3/00697 ,  A63F3/02 ,  A63F7/3603 ,  A63F2009/0087 ,  A63H18/002

Abstract: A basic idea of the present application is that in case of determining a position of the object on the surface, it is possible to also use transport mechanisms for the transport of the object on the surface which leads to less reproducible transport movements as the regulation may be executed directly on the basis of the observed movement as compared to the desired movement. Embodiments using compressed air, magnetism and/or bending waves are described.

Abstract translation: 本申请的基本思想是，在确定物体在表面上的位置的情况下，也可以使用传送机构来传送物体在表面上，导致运输运动的可再现性较小，因为调节可能 与所期望的运动相比，可以基于观察到的运动直接执行。 描述了使用压缩空气，磁力和/或弯曲波的实施例。

公开(公告)号：US20140064527A1

公开(公告)日：2014-03-06

申请号：US14077062

申请日：2013-11-11

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： Andreas WALTHER ,  Andreas SILZLE ,  Oliver HELLMUTH ,  Berhnhard GRILL ,  Harald POPP

IPC: H04S3/00

CPC classification number: H04S3/006 ,  H04S3/008

Abstract: An apparatus for generating an output signal having at least two output channels from an input signal having at least two input channels, has an ambient/direct decomposer, an ambient modification unit and a combination unit. The ambient/direct decomposer is adapted to decompose at least two input channels of the input signal such that each one of the at least two input channels is decomposed into a signal of a first signal group and into a signal of a second signal group. The ambient modification unit is adapted to modify a signal of the ambient signal group or a signal derived from a signal of the ambient signal group to obtain a modified signal as a first output channel. The combination unit is adapted to combine a signal of the ambient signal group or a signal derived from a signal of the ambient signal group and a signal of the direct signal group or a signal derived from a signal of the direct signal group as a second output channel.

Abstract translation: 一种用于从具有至少两个输入通道的输入信号产生具有至少两个输出通道的输出信号的装置，具有环境/直接分解器，环境修改单元和组合单元。 环境/直接分解器适于分解输入信号的至少两个输入通道，使得至少两个输入通道中的每一个分解成第一信号组的信号并分解成第二信号组的信号。 环境修改单元适于修改环境信号组的信号或从环境信号组的信号导出的信号，以获得作为第一输出通道的修改信号。 组合单元适于组合环境信号组的信号或从环境信号组的信号和直接信号组的信号或从直接信号组的信号导出的信号的信号作为第二输出 渠道。