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公开(公告)号：US10074377B2
公开(公告)日：2018-09-11
申请号：US15272653
申请日：2016-09-22
发明人： Fabian Kuech , Christian Uhle , Michael Kratschmer , Bernhard Neugebauer , Michael Meier , Stephan Schreiner
IPC分类号： G10L19/022 , G10L19/16 , H03G7/00
CPC分类号： G10L19/167 , G10L19/022 , H03G7/007
摘要： An audio encoder device includes an audio encoder configured for producing an encoded audio bitstream from an audio signal having consecutive audio frames; a dynamic range control encoder configured for producing an encoded dynamic range control bitstream from an dynamic range control sequence corresponding to the audio signal and having consecutive dynamic range control frames, wherein each dynamic range control frame of the dynamic range control frames has one or more nodes, wherein each node of the one or more nodes has gain information for the audio signal and time information indicating to which point in time the gain information corresponds.
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公开(公告)号：US11477594B2
公开(公告)日：2022-10-18
申请号：US16740290
申请日：2020-01-10
发明人： Emanuel Habets , Juergen Herre , Axel Plinge , Oliver Thiergart , Fabian Kuech
摘要： An apparatus for generating an enhanced sound field description includes: a sound field generator for generating at least one sound field description indicating a sound field with respect to at least one reference location; and a meta data generator for generating meta data relating to spatial information of the sound field, wherein the at least one sound field description and the meta data constitute the enhanced sound field description. The meta data can be a depth map associating a distance information to a direction in a full band or a subband, i.e., a time frequency bin.
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3.发明授权公开(公告)号：US10930293B2
公开(公告)日：2021-02-23
申请号：US15136324
申请日：2016-04-22
发明人： Fabian Kuech , Christian Uhle , Michael Kratschmer , Bernhard Neugebauer , Michael Meier , Arne Borsum
IPC分类号： G10L21/034 , G10L19/16 , H03G11/00 , H03G9/00 , G06F3/16 , G10L19/018 , G10L19/008
摘要： The invention provides a concept for combined dynamic range compression and guided clipping prevention for audio devices. An audio decoder for decoding an audio bitstream and a metadata bitstream related to the audio bitstream according to the concept includes an audio processing chain including a plurality of adjustment stages including a dynamic range control stage for adjusting a dynamic range of the audio output signal and a guided clipping prevention stage for preventing clipping of the audio output signal; and a metadata decoder configured to receive the metadata bitstream and to extract dynamic range control gain sequences and guided clipping prevention gain sequences from the metadata bitstream, at least a part of the dynamic range control gain sequences being supplied to the dynamic range control stage, and at least a part of the guided clipping prevention gain sequences being supplied to the guided clipping prevention stage.
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公开(公告)号：US20190267022A1
公开(公告)日：2019-08-29
申请号：US16381770
申请日：2019-04-11
发明人： Anthony Lombard , Bernhard Birzer , Dirk Mahne , Edwin Mabande , Fabian Kuech , Emanuel Habets , Paolo Annibale
IPC分类号： G10L21/0216 , G10L21/0324 , H03G3/00 , H03G7/00
摘要： An apparatus for processing an audio signal includes an audio signal analyzer and a filter. The audio signal analyzer is configured to analyze an audio signal to determine a plurality of noise suppression filter values for a plurality of bands of the audio signal, wherein the analyzer is configured to determine a noise suppression filter value so that a noise suppression filter value is greater than or equal to a minimum noise suppression filter value and so that the minimum noise suppression value depends on a characteristic of the audio signal. The filter is configured for filtering the audio signal, wherein the filter is adjusted based on the noise suppression filter values.
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5.发明授权公开(公告)号：US10154362B2
公开(公告)日：2018-12-11
申请号：US15002094
申请日：2016-01-20
摘要： An apparatus for mapping a first input channel and a second input channel of an input channel configuration to at least one output channel of an output channel configuration, wherein each input channel and each output channel has a direction in which an associated loudspeaker is located relative to a central listener position, configured to map the first input channel to a first output channel of the output channel configuration; and despite of the fact that an angle deviation between a direction of the second input channel and a direction of the first output channel is less than an angle deviation between a direction of the second input channel and the second output channel and/or is less than an angle deviation between the direction of the second input channel and the direction of the third output channel, map the second input channel to the second and third output channels by panning between the second and third output channels.
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公开(公告)号：US09936327B2
公开(公告)日：2018-04-03
申请号：US15000876
申请日：2016-01-19
CPC分类号： H04S7/303 , G10L19/008 , H04R5/02 , H04S3/002 , H04S3/02 , H04S7/30 , H04S7/302 , H04S7/305 , H04S7/308 , H04S2400/01 , H04S2400/03 , H04S2420/03
摘要： A method for mapping a plurality of input channels of an input channel configuration to output channels of an output channel configuration includes providing a set of rules associated with each input channel of the plurality of input channels, wherein the rules define different mappings between the associated input channel and a set of output channels. For each input channel of the plurality of input channels, a rule associated with the input channel is accessed, determination is made whether the set of output channels defined in the accessed rule is present in the output channel configuration, and the accessed rule is selected if the set of output channels defined in the accessed rule is present in the output channel configuration. The input channels are mapped to the output channels according to the selected rule.
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公开(公告)号：US09699552B2
公开(公告)日：2017-07-04
申请号：US13867311
申请日：2013-04-22
发明人： Fabian Kuech , Markus Schmidt , Alexis Favrot , Christof Faller
IPC分类号： H04R3/00 , H04M9/08 , G10L21/0208
CPC分类号： H04R3/002 , G10L2021/02082 , H04M9/085
摘要： An apparatus for computing filter coefficients for an adaptive filter is disclosed. The adaptive filter is used for filtering a microphone signal so as to suppress an echo due to a loudspeaker signal. The apparatus has: an echo decay modeling means for modeling a decay behavior of an acoustic environment and for providing a corresponding echo decay parameter; and computing means for computing the filter coefficients of the adaptive filter on the basis of the echo decay parameter. A corresponding method has: providing echo decay parameters determined by means of an echo decay modeling means; and computing the filter coefficients of the adaptive filter on the basis of the echo decay parameters.
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8.发明授权Apparatus for generating a decorrelated signal using transmitted phase information 有权用于使用传输的相位信息产生解相关信号的装置公开(公告)号：US09368122B2
公开(公告)日：2016-06-14
申请号：US14248747
申请日：2014-04-09
发明人： Achim Kuntz , Sascha Disch , Juergen Herre , Fabian Kuech , Johannes Hilpert
IPC分类号： G10L19/008 , G10L19/00 , G10L19/025
CPC分类号： G10L19/0017 , G10L19/008 , G10L19/025
摘要： An apparatus for generating a decorrelated signal having a receiving unit for receiving phase information, a transient separator, a transient decorrelator, a second decorrelator and a combining unit, wherein the transient separator is adapted to separate an input signal into a first signal component and into a second signal component such that the first signal component has transient signal portions of the input signal and such that the second signal component has non-transient signal portions of the input signal. The transient decorrelator is adapted to apply the phase information received by the receiving unit to a transient signal component.
摘要翻译： 一种用于产生具有用于接收相位信息的接收单元，瞬态分离器，瞬态解相关器，第二去相关器和组合单元的去相关信号的装置，其中所述瞬态分离器适于将输入信号分离成第一信号分量并且进入 第二信号分量，使得第一信号分量具有输入信号的瞬态信号部分，并且使得第二信号分量具有输入信号的非瞬态信号部分。 瞬态解相关器适于将由接收单元接收的相位信息应用于瞬态信号分量。
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9.发明授权Apparatus for generating a decorrelated signal using transmitted phase information 有权用于使用传输的相位信息产生解相关信号的装置公开(公告)号：US08831931B2
公开(公告)日：2014-09-09
申请号：US13775011
申请日：2013-02-22
发明人： Achim Kuntz , Sascha Disch , Juergen Herre , Fabian Kuech , Johannes Hilpert
IPC分类号： G10L19/00
CPC分类号： G10L19/0017 , G10L19/008 , G10L19/025
摘要： An apparatus for generating a decorrelated signal having a receiving unit for receiving phase information, a transient separator, a transient decorrelator, a second decorrelator and a combining unit, wherein the transient separator is adapted to separate an input signal into a first signal component and into a second signal component such that the first signal component has transient signal portions of the input signal and such that the second signal component has non-transient signal portions of the input signal. The transient decorrelator is adapted to apply the phase information received by the receiving unit to a transient signal component.
摘要翻译： 一种用于产生具有用于接收相位信息的接收单元，瞬态分离器，瞬态解相关器，第二去相关器和组合单元的去相关信号的装置，其中所述瞬态分离器适于将输入信号分离成第一信号分量并且进入 第二信号分量，使得第一信号分量具有输入信号的瞬态信号部分，并且使得第二信号分量具有输入信号的非瞬态信号部分。 瞬态解相关器适于将由接收单元接收的相位信息应用于瞬态信号分量。
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公开(公告)号：US11664040B2
公开(公告)日：2023-05-30
申请号：US17210415
申请日：2021-03-23
发明人： Anthony Lombard , Bernhard Birzer , Dirk Mahne , Edwin Mabande , Fabian Kuech , Emanuel Habets , Paolo Annibale
IPC分类号： G10L21/0216 , G10L21/0324 , H03G3/00 , H03G7/00 , G10L21/0208 , G10L21/0316
CPC分类号： G10L21/0216 , G10L21/0208 , G10L21/0316 , G10L21/0324 , H03G3/002 , H03G7/007 , G10L2021/02161
摘要： An apparatus for processing an audio signal includes an audio signal analyzer and a filter. The audio signal analyzer is configured to analyze an audio signal to determine a plurality of noise suppression filter values for a plurality of bands of the audio signal, wherein the analyzer is configured to determine a noise suppression filter value so that a noise suppression filter value is greater than or equal to a minimum noise suppression filter value and so that the minimum noise suppression value depends on a characteristic of the audio signal. The filter is configured for filtering the audio signal, wherein the filter is adjusted based on the noise suppression filter values.
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