Patents by Inventor Fabian Küch

Fabian Küch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11990142
    Abstract: There are disclosed several examples of encoding and decoding technique. In particular, an audio synthesizer for generating a synthesis signal from a downmix signal includes: an input interface for receiving the downmix signal, the downmix signal having a number of downmix channels and side information, the side information including channel level and correlation information of an original signal, the original signal having a number of original channels; and a synthesis processor for generating, according to at least one mixing rule, the synthesis signal using: channel level and correlation information of the original signal; and covariance information associated with the downmix signal.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: May 21, 2024
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Alexandre Bouthéon, Guillaume Fuchs, Markus Multrus, Fabian Küch, Oliver Thiergart, Stefan Bayer, Sascha Disch, Jürgen Herre
  • Publication number: 20240163628
    Abstract: Apparatus for processing a sound field representation related to a defined reference point or defined listening orientation for the sound field representation including: a sound field processor for processing the sound field representation using a deviation of a target listening position from the defined reference point or a target listening orientation from the defined listening orientation to obtain a processed sound field description which, when rendered, provides an impression of the sound field representation at the target listening position being different from the defined reference point or for the target listening orientation being different from the defined listening orientation, or for processing the sound field representation using a spatial filter to obtain the processed sound field description which, when rendered, provides an impression of a spatially filtered sound field description, the sound field processor being configured to process the sound field representation to apply the deviation or t
    Type: Application
    Filed: January 2, 2024
    Publication date: May 16, 2024
    Inventors: Oliver THIERGART, Alexander NIEDERLEITNER, Emanuel HABETS, Moritz WILD, Axel PLINGE, Achim KUNTZ, Alexandre BOUTHÉON, Dirk MAHNE, Fabian KÜCH
  • Patent number: 11984131
    Abstract: Audio encoder for encoding audio input data to obtain audio output data includes an input interface for receiving a plurality of audio channels, a plurality of audio objects and metadata related to one or more of the plurality of audio objects; a mixer for mixing the plurality of objects and the plurality of channels to obtain a plurality of pre-mixed channels, each pre-mixed channel including audio data of a channel and audio data of at least one object; a core encoder for core encoding core encoder input data; and a metadata compressor for compressing the metadata related to the one or more of the plurality of audio objects, wherein the audio encoder is configured to operate in at least one mode of the group of two modes.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: May 14, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Alexander Adami, Christian Borss, Sascha Dick, Christian Ertel, Simone Neukam, Juergen Herre, Johannes Hilpert, Andreas Hoelzer, Michael Kratschmer, Fabian Kuech, Achim Kuntz, Adrian Murtaza, Jan Plogsties, Andreas Silzle, Hanne Stenzel
  • Patent number: 11937075
    Abstract: An apparatus for generating a sound field description using an input signal having a mono-signal or a multi-channel signal comprises: an input signal analyzer for analyzing the input signal to derive direction data and diffuseness data; a low-order components generator for generating a low-order sound field description from the input signal up to a predetermined order and mode; a mid-order components generator for generating a mid-order sound field description above the predetermined order or at the predetermined order and above the predetermined mode and below or at a first truncation order using a synthesis of at least one direct portion and of at least one diffuse portion using the direction data and the diffuseness data; and a high-order components generator for generating a high-order sound field description having a component above the first truncation order using a synthesis of at least one direct portion.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: March 19, 2024
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWAND FORSCHUNG E.V
    Inventors: Guillaume Fuchs, Oliver Thiergart, Srikanth Korse, Stefan Döhla, Markus Multrus, Fabian Küch, Alexandre Bouthéon, Andrea Eichenseer, Stefan Bayer
  • Publication number: 20240040330
    Abstract: An apparatus for generating a sound field description using an input signal having a mono-signal or a multi-channel signal includes: an input signal analyzer for analyzing the input signal to derive direction data and diffuseness data; a low-order components generator for generating a low-order sound field description from the input signal up to a predetermined order and mode; a mid-order components generator for generating a mid-order sound field description above the predetermined order or at the predetermined order and above the predetermined mode and below or at a first truncation order using a synthesis of at least one direct portion and of at least one diffuse portion using the direction data and the diffuseness data; and a high-order components generator for generating a high-order sound field description having a component above the first truncation order using a synthesis of at least one direct portion.
    Type: Application
    Filed: October 6, 2023
    Publication date: February 1, 2024
    Inventors: Guillaume FUCHS, Oliver THIERGART, Srikanth KORSE, Stefan DÖHLA, Markus MULTRUS, Fabian KÜCH, Alexandre BOUTHÉON, Andrea EICHENSEER, Stefan BAYER
  • Patent number: 11877141
    Abstract: 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.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: January 16, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Juergen Herre, Fabian Kuech, Michael Kratschmer, Achim Kuntz, Christoph Faller
  • Patent number: 11856389
    Abstract: An apparatus for generating a sound field description from an input signal having at least two channels has: an input signal analyzer for obtaining direction data and diffuseness data from the input signal; an estimator for estimating a first energy- or amplitude-related measure for an omnidirectional component derived from the input signal and for estimating a second energy- or amplitude-related measure for a directional component derived from the input signal, and a sound component generator for generating sound field components of the sound field, wherein the sound component generator is configured to perform an energy compensation of the directional component using the first energy- or amplitude-related measure, the second energy- or amplitude-related measure, the direction data and the diffuseness data.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: December 26, 2023
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Guillaume Fuchs, Oliver Thiergart, Srikanth Korse, Stefan Döhla, Markus Multrus, Fabian Küch, Alexandre Bouthéon, Andrea Eichenseer, Stefan Bayer
  • Patent number: 11854560
    Abstract: 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.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: December 26, 2023
    Inventors: Guillaume Fuchs, Stefan Bayer, Markus Multrus, Oliver Thiergart, Alexandre Bouthéon, Jürgen Herre, Florin Ghido, Wolfgang Jaegers, Fabian Küch
  • Publication number: 20230410819
    Abstract: 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.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 21, 2023
    Inventors: Guillaume FUCHS, Jürgen HERRE, Fabian KÜCH, Stefan DÖHLA, Markus MULTRUS, Oliver THIERGART, Oliver WÜBBOLT, Florin GHIDO, Stefan BAYER, Wolfgang JAEGERS
  • Publication number: 20230396949
    Abstract: An apparatus for generating a sound field description from an input signal having at least two channels has: an input signal analyzer for obtaining direction data and diffuseness data from the input signal; an estimator for estimating a first energy- or amplitude-related measure for an omnidirectional component derived from the input signal and for estimating a second energy- or amplitude-related measure for a directional component derived from the input signal, and a sound component generator for generating sound field components of the sound field, wherein the sound component generator is configured to perform an energy compensation of the directional component using the first energy- or amplitude-related measure, the second energy- or amplitude-related measure, the direction data and the diffuseness data.
    Type: Application
    Filed: August 10, 2023
    Publication date: December 7, 2023
    Inventors: Guillaume FUCHS, Oliver THIERGART, Srikanth KORSE, Stefan DÖHLA, Markus MULTRUS, Fabian KÜCH, Alexandre BOUTHÉON, Andrea EICHENSEER, Stefan BAYER
  • Patent number: 11838743
    Abstract: An apparatus for generating a sound field description from an input signal having one or more channels including: an input signal analyzer for obtaining diffuseness data from the input signal; a sound component generator for generating, from the input signal, one or more sound field components of a first group of sound field components having for each sound field component a direct component and a diffuse component, and for generating, from the input signal, a second group of sound field components having only a direct component, the sound component generator being configured to perform an energy compensation when generating the first group of sound field components, the energy compensation depending on the diffuseness data and a number of sound field components in the second group, a number of diffuse components in the first group, or a maximum order of sound field components.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: December 5, 2023
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Guillaume Fuchs, Oliver Thiergart, Srikanth Korse, Stefan Döhla, Markus Multrus, Fabian Küch, Alexandre Bouthéon, Andrea Eichenseer, Stefan Bayer
  • Publication number: 20230379652
    Abstract: An apparatus generating a sound field description includes an input signal analyzer acquiring diffuseness data from the input signal; a sound component generator for generating, from the input signal, one or more sound field components of a first group of sound field components comprising for each sound field component a direct component and a diffuse component, and for generating, from the input signal, a second group of sound field components comprising only a direct component. The sound component generator is configured to perform an energy compensation when generating the first group of sound field components, the energy compensation depending on the diffuseness data and at least one of a number of sound field components in the second group, a number of diffuse components in the first group, a maximum order of sound field components of the first group and a maximum order of sound field components of the second group.
    Type: Application
    Filed: August 2, 2023
    Publication date: November 23, 2023
    Inventors: Guillaume FUCHS, Oliver THIERGART, Srikanth KORSE, Stefan DÖHLA, Markus MULTRUS, Fabian KÜCH, Alexandre BOUTHÉON, Andrea EICHENSEER, Stefan BAYER
  • Patent number: 11783843
    Abstract: 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.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: October 10, 2023
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Guillaume Fuchs, Jürgen Herre, Fabian Küch, Stefan Döhla, Markus Multrus, Oliver Thiergart, Oliver Wübbolt, Florin Ghido, Stefan Bayer, Wolfgang Jaegers
  • Publication number: 20230317088
    Abstract: 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.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Inventors: Guillaume FUCHS, Stefan BAYER, Markus MULTRUS, Oliver THIERGART, Alexandre BOUTHÉON, Jürgen HERRE, Florin GHIDO, Wolfgang JAEGERS, Fabian KÜCH
  • Publication number: 20230298602
    Abstract: Apparatus for encoding a plurality of audio objects, having: an object parameter calculator configured for calculating, for one or more frequency bins of a plurality of frequency bins related to a time frame, parameter data for at least two relevant audio objects, wherein a number of the at least two relevant audio objects is lower than a total number of the plurality of audio objects, and an output interface for outputting an encoded audio signal having information on the parameter data for the at least two relevant audio objects for the one or more frequency bins.
    Type: Application
    Filed: April 6, 2023
    Publication date: September 21, 2023
    Inventors: Andrea EICHENSEER, Srikanth KORSE, Stefan BAYER, Fabian KÜCH, Oliver THIERGART, Guillaume FUCHS, Dominik WECKBECKER, Jürgen HERRE, Markus MULTRUS
  • Patent number: 11729554
    Abstract: 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.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: August 15, 2023
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Guillaume Fuchs, Jürgen Herre, Fabian Küch, Stefan Döhla, Markus Multrus, Oliver Thiergart, Oliver Wübbolt, Florin Ghido, Stefan Bayer, Wolfgang Jaegers
  • Publication number: 20230238007
    Abstract: An apparatus for encoding a plurality of audio objects and related metadata indicating direction information on the plurality of audio objects has: a downmixer for downmixing the plurality of audio objects to obtain one or more transport channels; a transport channel encoder for encoding one or more transport channels to obtain one or more encoded transport channels; and an output interface for outputting an encoded audio signal comprising the one or more encoded transport channels, wherein the downmixer is configured to downmix the plurality of audio objects in response to the direction information on the plurality of audio objects.
    Type: Application
    Filed: April 5, 2023
    Publication date: July 27, 2023
    Inventors: Andrea EICHENSEER, Srikanth KORSE, Stefan BAYER, Fabian KÜCH, Oliver THIERGART, Guillaume FUCHS, Dominik WECKBECKER, Jürgen HERRE, Markus MULTRUS
  • Patent number: 11664040
    Abstract: 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.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: May 30, 2023
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Anthony Lombard, Bernhard Birzer, Dirk Mahne, Edwin Mabande, Fabian Kuech, Emanuel Habets, Paolo Annibale
  • Publication number: 20230134916
    Abstract: 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.
    Type: Application
    Filed: December 29, 2022
    Publication date: May 4, 2023
    Inventors: Fabian KUECH, Christian UHLE, Michael KRATSCHMER, Bernhard NEUGEBAUER, Michael MEIER, Arne BORSUM
  • Patent number: 11551703
    Abstract: 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.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: January 10, 2023
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Fabian Kuech, Christian Uhle, Michael Kratschmer, Bernhard Neugebauer, Michael Meier, Arne Borsum