Patents by Inventor Christian Borss
Christian Borss 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).
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Patent number: 11910176Abstract: An apparatus for generating one or more audio channels. The apparatus comprises a metadata decoder for generating one or more reconstructed metadata signals from one or more processed metadata signals depending on a control signal, wherein each of the one or more reconstructed metadata signals indicates information associated with an audio signal of one or more audio signals, wherein the metadata decoder is configured to generate the one or more reconstructed metadata signals by determining a plurality of reconstructed metadata samples for each of the one or more reconstructed metadata signals. Moreover, the apparatus comprises an audio channel generator for generating the one or more audio channels depending on the one or more audio signals and depending on the one or more reconstructed metadata signals.Type: GrantFiled: April 25, 2022Date of Patent: February 20, 2024Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Christian Borss, Christian Ertel, Johannes Hilpert
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Publication number: 20230396950Abstract: A more efficient rendering of audio objects, which allows 3D panning, is achieved by performing the panning into two stages, namely at least one horizontal in-layer panning leading to a first virtual (speaker) position and a second virtual or real (speaker) position, which is vertically offset, and another panning vertically between the two positions. Although acting in such a manner seems to increase the computational complexity, this staged processing increases, in fact, the stability of the rendering and the location of the intended virtual position. Moreover, the staged processing, enables to perform, according to an embodiment, the panning by use of amplitude panning gains only, i.e. phase processing is not necessary, thereby rendering the computational complexity low. Even further, the rendering is flexible with respect to applicability to a variety of loudspeaker setups.Type: ApplicationFiled: August 24, 2023Publication date: December 7, 2023Inventors: Andreas WALTHER, Christof FALLER, Jürgen HERRE, Markus SCHMIDT, Christian BORSS, Julian KLAPP, Philipp GÖTZ
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Patent number: 11785414Abstract: An apparatus for generating a plurality of audio channels for a speaker setup, comprises a processor repeating an energy distribution from a speaker not contained in the speaker setup to the speakers in the speaker setup to acquire a downmix information for a downmix to the speaker setup; and a renderer for generating the plurality of audio channels using the downmix information.Type: GrantFiled: July 28, 2022Date of Patent: October 10, 2023Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.Inventors: Christian Borss, Christian Ertel, Johannes Hilpert, Achim Kuntz, Michael Fischer, Florian Schuh, Bernhard Grill
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Publication number: 20230217197Abstract: An apparatus for combining three or more audio signals is described. The apparatus includes a segmentation block for segmenting each audio signal into segments, a weight determination block, which is configured to determine a weight value for each of the temporally weighted audio signal segments, a combination block for combining the temporally weighted audio signal segments of each audio signal, and a synthesis block for generating an output audio signal. A method for combining three or more audio signals and a computer program product are also described.Type: ApplicationFiled: March 14, 2023Publication date: July 6, 2023Inventor: Christian BORSS
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Patent number: 11670307Abstract: A downmixer for downmixing at least two channels of a multichannel signal having the two or more channels includes: a processor for calculating a partial downmix signal from the at least two channels; a complementary signal calculator for calculating a complementary signal from the multichannel signal, the complementary signal being different from the partial downmix signal; and an adder for adding the partial downmix signal and the complementary signal to obtain a downmix signal of the multichannel signal.Type: GrantFiled: October 14, 2021Date of Patent: June 6, 2023Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Christian Borss, Bernd Edler, Guillaume Fuchs, Jan Buethe, Sascha Disch, Florin Ghido, Stefan Bayer, Markus Multrus
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Publication number: 20230007429Abstract: An apparatus for rendering a sound scene having reflection objects and a sound source at a sound source position, includes: a geometry data provider for providing an analysis of the reflection objects of the sound scene to determine a reflection object represented by a first polygon and a second adjacent polygon having associated a first image source position for the first polygon and a second image source position for the second polygon, wherein the first and second image source positions result in a sequence including a first visible zone related to the first image source position, an invisible zone and a second visible zone related to the second image source position; an image source position generator for generating an additional image source position such that the additional image source position is placed between the first image source position and the second image source position; and a sound renderer for rendering the sound source at the sound source position and, additionally for rendering the soundType: ApplicationFiled: September 8, 2022Publication date: January 5, 2023Inventors: Christian BORSS, Frank WEFERS
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Publication number: 20220377493Abstract: An apparatus for generating a plurality of audio channels for a speaker setup, comprises a processor repeating an energy distribution from a speaker not contained in the speaker setup to the speakers in the speaker setup to acquire a downmix information for a downmix to the speaker setup; and a renderer for generating the plurality of audio channels using the downmix information.Type: ApplicationFiled: July 28, 2022Publication date: November 24, 2022Inventors: Christian BORSS, Christian ERTEL, Johannes HILPERT, Achim KUNTZ, Michael FISCHER, Florian SCHUH, Bernhard GRILL
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Publication number: 20220329958Abstract: An apparatus for generating one or more audio channels. The apparatus comprises a metadata decoder for generating one or more reconstructed metadata signals from one or more processed metadata signals depending on a control signal, wherein each of the one or more reconstructed metadata signals indicates information associated with an audio signal of one or more audio signals, wherein the metadata decoder is configured to generate the one or more reconstructed metadata signals by determining a plurality of reconstructed metadata samples for each of the one or more reconstructed metadata signals. Moreover, the apparatus comprises an audio channel generator for generating the one or more audio channels depending on the one or more audio signals and depending on the one or more reconstructed metadata signals.Type: ApplicationFiled: April 25, 2022Publication date: October 13, 2022Inventors: Christian BORSS, Christian ERTEL, Johannes HILPERT
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Patent number: 11463831Abstract: An apparatus for generating one or more audio channels is provided. The apparatus includes a metadata decoder for receiving one or more compressed metadata signals. Each of the one or more compressed metadata signals includes a plurality of first metadata samples. The metadata decoder is configured to generate one or more reconstructed metadata signals and to generate each of the second metadata samples of each reconstructed metadata signal of the one or more reconstructed metadata signals depending on at least two of the first metadata samples of the reconstructed metadata signal. The apparatus includes an audio channel generator for generating the one or more audio channels depending on the one or more audio object signals and depending on the one or more reconstructed metadata signals. An apparatus for generating encoded audio information including one or more encoded audio signals and one or more compressed metadata signals is provided.Type: GrantFiled: May 13, 2020Date of Patent: October 4, 2022Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Christian Borss, Christian Ertel
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Patent number: 11438723Abstract: An apparatus for generating a plurality of audio channels for a first speaker setup is characterized by an imaginary speaker determiner, an energy distribution calculator, a processor and a renderer. The imaginary speaker determiner is configured to determine a position of an imaginary speaker not contained in the first speaker setup to obtain a second speaker setup containing the imaginary speaker. The energy distribution calculator is configured to calculate an energy distribution from the imaginary speaker to the other speakers in the second speaker setup. The processor is configured to repeat the energy distribution to obtain a downmix information for a downmix from the second speaker setup to the first speaker setup. The renderer is configured to generate the plurality of audio channels using the downmix information.Type: GrantFiled: January 11, 2021Date of Patent: September 6, 2022Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Christian Borss, Christian Ertel, Johannes Hilpert, Achim Kuntz, Michael Fischer, Florian Schuh, Bernhard Grill
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Publication number: 20220279302Abstract: An audio object renderer for determining loudspeaker gains describing gains for an inclusion of one or more audio object signals into a plurality of loudspeaker signals on the basis of an object position information and an object feature information or a spread information is configured to obtain panned object loudspeaker gains using a point source panning of the audio object. The audio object renderer is configured to obtain spread object loudspeaker gains considering the object position information and the object feature information or spread information. The audio object renderer is configured to combine the panned object loudspeaker gains and the spread object loudspeaker gains in such a manner, that there is a contribution of the panned object loudspeaker gains, in order to obtain combined loudspeaker gains. Methods and computer programs are also described.Type: ApplicationFiled: May 20, 2022Publication date: September 1, 2022Inventors: Aleksandr KARAPETYAN, Oliver WUEBBOLT, Christian BORSS, Philipp STADTER
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Patent number: 11337019Abstract: An apparatus for generating one or more audio channels is provided. The apparatus comprises a metadata decoder for generating one or more reconstructed metadata signals from one or more processed metadata signals depending on a control signal, wherein each of the one or more reconstructed metadata signals indicates information associated with an audio object signal of one or more audio object signals, wherein the metadata decoder is configured to generate the one or more reconstructed metadata signals by determining a plurality of reconstructed metadata samples for each of the one or more reconstructed metadata signals. The apparatus comprises an audio channel generator for generating the one or more audio channels depending on the one or more audio object signals and depending on the one or more reconstructed metadata signals. The metadata decoder is configured to receive a plurality of processed metadata samples of each of the one or more processed metadata signals.Type: GrantFiled: March 5, 2020Date of Patent: May 17, 2022Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Christian Borss, Christian Ertel, Johannes Hilpert
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Publication number: 20220101867Abstract: 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: ApplicationFiled: December 13, 2021Publication date: March 31, 2022Inventors: 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
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Publication number: 20220068284Abstract: A downmixer for downmixing at least two channels of a multichannel signal having the two or more channels includes: a processor for calculating a partial downmix signal from the at least two channels; a complementary signal calculator for calculating a complementary signal from the multichannel signal, the complementary signal being different from the partial downmix signal; and an adder for adding the partial downmix signal and the complementary signal to obtain a downmix signal of the multichannel signal.Type: ApplicationFiled: October 14, 2021Publication date: March 3, 2022Inventors: Christian BORSS, Bernd EDLER, Guillaume FUCHS, Jan BUETHE, Sascha DISCH, Florin GHIDO, Stefan BAYER, Markus MULTRUS
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Patent number: 11227616Abstract: 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: GrantFiled: February 15, 2019Date of Patent: January 18, 2022Assignee: 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
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Patent number: 11183196Abstract: A downmixer for downmixing at least two channels of a multichannel signal having the two or more channels includes: a processor for calculating a partial downmix signal from the at least two channels; a complementary signal calculator for calculating a complementary signal from the multichannel signal, the complementary signal being different from the partial downmix signal; and an adder for adding the partial downmix signal and the complementary signal to obtain a downmix signal of the multichannel signal.Type: GrantFiled: April 13, 2020Date of Patent: November 23, 2021Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Christian Borss, Bernd Edler, Guillaume Fuchs, Jan Buethe, Sascha Disch, Florin Ghido, Stefan Bayer, Markus Multrus
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Publication number: 20210136511Abstract: An apparatus for generating a plurality of audio channels for a first speaker setup is characterized by an imaginary speaker determiner, an energy distribution calculator, a processor and a renderer. The imaginary speaker determiner is configured to determine a position of an imaginary speaker not contained in the first speaker setup to obtain a second speaker setup containing the imaginary speaker. The energy distribution calculator is configured to calculate an energy distribution from the imaginary speaker to the other speakers in the second speaker setup. The processor is configured to repeat the energy distribution to obtain a downmix information for a downmix from the second speaker setup to the first speaker setup. The renderer is configured to generate the plurality of audio channels using the downmix information.Type: ApplicationFiled: January 11, 2021Publication date: May 6, 2021Inventors: Christian BORSS, Christian ERTEL, Johannes HILPERT, Achim KUNTZ, Michael FISCHER, Florian SCHUH, Bernhard GRILL
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Patent number: 10904693Abstract: An apparatus for generating a plurality of audio channels for a first speaker setup is characterized by an imaginary speaker determiner, an energy distribution calculator, a processor and a renderer. The imaginary speaker determiner is configured to determine a position of an imaginary speaker not contained in the first speaker setup to obtain a second speaker setup containing the imaginary speaker. The energy distribution calculator is configured to calculate an energy distribution from the imaginary speaker to the other speakers in the second speaker setup. The processor is configured to repeat the energy distribution to obtain a downmix information for a downmix from the second speaker setup to the first speaker setup. The renderer is configured to generate the plurality of audio channels using the downmix information.Type: GrantFiled: February 28, 2020Date of Patent: January 26, 2021Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Christian Borss, Christian Ertel, Johannes Hilpert, Achim Kuntz, Michael Fischer, Florian Schuh, Bernhard Grill
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Patent number: 10863276Abstract: A soundbar includes a housing, at least two transducers of a first group and at least one transducer of a second group. The at least two transducers of the first group are arranged at the front side of the housing and configured to emit sound in a first direction in accordance with two first audio signals so as to reproduce a two dimensional sound field. The at least one transducer of a second group is arranged at second side of the housing and configured to emit sound in a second direction in accordance with a second audio signal such that the sound emitted by the at least one transducer of the second group reaches a predefined listener's position in a reflected manner to extend the two dimensional sound field in a height direction. The reflection reflecting the sound emitted by the at least one transducer of the second group has an order of at least two.Type: GrantFiled: February 2, 2018Date of Patent: December 8, 2020Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Andreas Walther, Christian Borss, Martin Schneider, Philipp Goetz
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Publication number: 20200275228Abstract: An apparatus for generating one or more audio channels is provided. The apparatus includes a metadata decoder for receiving one or more compressed metadata signals. Each of the one or more compressed metadata signals includes a plurality of first metadata samples. The metadata decoder is configured to generate one or more reconstructed metadata signals and to generate each of the second metadata samples of each reconstructed metadata signal of the one or more reconstructed metadata signals depending on at least two of the first metadata samples of the reconstructed metadata signal. The apparatus includes an audio channel generator for generating the one or more audio channels depending on the one or more audio object signals and depending on the one or more reconstructed metadata signals. An apparatus for generating encoded audio information including one or more encoded audio signals and one or more compressed metadata signals is provided.Type: ApplicationFiled: May 13, 2020Publication date: August 27, 2020Inventors: Christian BORSS, Christian ERTEL