Patents by Inventor Manuel Jander
Manuel Jander 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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Publication number: 20240135943Abstract: A method is described that processes an audio signal. A discontinuity between a filtered past frame and a filtered current frame of the audio signal is removed using linear predictive filtering.Type: ApplicationFiled: December 12, 2023Publication date: April 25, 2024Inventors: Emmanuel RAVELLI, Manuel JANDER, Grzegorz PIETRZYK, Martin DIETZ, Marc GAYER
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Patent number: 11961531Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: GrantFiled: May 5, 2022Date of Patent: April 16, 2024Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
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Publication number: 20240046942Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: ApplicationFiled: October 9, 2023Publication date: February 8, 2024Inventors: Markus LOHWASSER, Manuel JANDER, Max NEUENDORF, Ralf GEIGER, Markus SCHNELL, Matthias HILDENBRAND, Tobias CHALUPKA
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Patent number: 11869525Abstract: A method is described that processes an audio signal. A discontinuity between a filtered past frame and a filtered current frame of the audio signal is removed using linear predictive filtering.Type: GrantFiled: February 3, 2022Date of Patent: January 9, 2024Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.Inventors: Emmanuel Ravelli, Manuel Jander, Grzegorz Pietrzyk, Martin Dietz, Marc Gayer
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Patent number: 11810584Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: GrantFiled: February 10, 2021Date of Patent: November 7, 2023Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
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Patent number: 11804232Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: GrantFiled: February 10, 2021Date of Patent: October 31, 2023Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
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Publication number: 20230335147Abstract: A method is described that processes an audio signal. A discontinuity between a filtered past frame and a filtered current frame of the audio signal is removed using linear predictive filtering.Type: ApplicationFiled: June 22, 2023Publication date: October 19, 2023Inventors: Emmanuel RAVELLI, Manuel JANDER, Grzegorz PIETRZYK, Martin DIETZ, Marc GAYER
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Patent number: 11790928Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: GrantFiled: February 10, 2021Date of Patent: October 17, 2023Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
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Publication number: 20230282223Abstract: An apparatus for processing an audio signal having associated therewith a pitch lag information and a gain information, includes a domain converter for converting a first domain representation of the audio signal into a second domain representation of the audio signal; and a harmonic post-filter for filtering the second domain representation of the audio signal, wherein the post-filter is based on a transfer function including a numerator and a denominator, wherein the numerator includes a gain value indicated by the gain information, and wherein the denominator includes an integer part of a pitch lag indicated by the pitch lag information and a multi-tap filter depending on a fractional part of the pitch lag.Type: ApplicationFiled: May 16, 2023Publication date: September 7, 2023Inventors: Emmanuel RAVELLI, Christian HELMRICH, Goran MARKOVIC, Matthias NEUSINGER, Sascha DISCH, Manuel JANDER, Martin DIETZ
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Patent number: 11694704Abstract: An apparatus for processing an audio signal having associated therewith a pitch lag information and a gain information, includes a domain converter for converting a first domain representation of the audio signal into a second domain representation of the audio signal; and a harmonic post-filter for filtering the second domain representation of the audio signal, wherein the post-filter is based on a transfer function including a numerator and a denominator, wherein the numerator includes a gain value indicated by the gain information, and wherein the denominator includes an integer part of a pitch lag indicated by the pitch lag information and a multi-tap filter depending on a fractional part of the pitch lag.Type: GrantFiled: January 8, 2021Date of Patent: July 4, 2023Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Emmanuel Ravelli, Christian Helmrich, Goran Markovic, Matthias Neusinger, Sascha Disch, Manuel Jander, Martin Dietz
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Patent number: 11676615Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: GrantFiled: May 5, 2022Date of Patent: June 13, 2023Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
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Patent number: 11581003Abstract: The coding efficiency of an audio codec using a controllable—switchable or even adjustable—harmonic filter tool is improved by performing the harmonicity-dependent controlling of this tool using a temporal structure measure in addition to a measure of harmonicity in order to control the harmonic filter tool. In particular, the temporal structure of the audio signal is evaluated in a manner which depends on the pitch. This enables to achieve a situation-adapted control of the harmonic filter tool so that in situations where a control made solely based on the measure of harmonicity would decide against or reduce the usage of this tool, although using the harmonic filter tool would, in that situation, increase the coding efficiency, the harmonic filter tool is applied, while in other situations where the harmonic filter tool may be inefficient or even destructive, the control reduces the appliance of the harmonic filter tool appropriately.Type: GrantFiled: May 27, 2020Date of Patent: February 14, 2023Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Goran Markovic, Christian Helmrich, Emmanuel Ravelli, Manuel Jander, Stefan Doehla
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Patent number: 11580997Abstract: A jitter buffer control for controlling a provision of a decoded audio content on the basis of an input audio content is configured to select a frame-based time scaling or a sample-based time scaling in a signal-adaptive manner. An audio decoder uses such a jitter buffer control.Type: GrantFiled: June 11, 2020Date of Patent: February 14, 2023Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Stefan Reuschl, Stefan Doehla, Jérémie Lecomte, Manuel Jander
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Patent number: 11475905Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: GrantFiled: May 5, 2022Date of Patent: October 18, 2022Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
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Patent number: 11475906Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: GrantFiled: May 5, 2022Date of Patent: October 18, 2022Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
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Patent number: 11423913Abstract: An apparatus for generating an error concealment signal, includes: an LPC representation generator for generating a replacement LPC representation; an LPC synthesizer for filtering a codebook information using the replacement LPC representation; and a noise estimator for estimating a noise estimate during a reception of good audio frames, wherein the noise estimate depends on the good audio frames representation generator is configured to use the noise estimate estimated by the noise estimator in generating the replacement LPC representation.Type: GrantFiled: March 27, 2020Date of Patent: August 23, 2022Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Michael Schnabel, Jérémie Lecomte, Ralph Sperschneider, Manuel Jander
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Publication number: 20220262381Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: ApplicationFiled: May 5, 2022Publication date: August 18, 2022Inventors: Markus LOHWASSER, Manuel JANDER, Max NEUENDORF, Ralf GEIGER, Markus SCHNELL, Matthias HILDENBRAND, Tobias CHALUPKA
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Publication number: 20220262382Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: ApplicationFiled: May 5, 2022Publication date: August 18, 2022Inventors: Markus LOHWASSER, Manuel JANDER, Max NEUENDORF, Ralf GEIGER, Markus SCHNELL, Matthias HILDENBRAND, Tobias CHALUPKA
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Publication number: 20220262383Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: ApplicationFiled: May 5, 2022Publication date: August 18, 2022Inventors: Markus LOHWASSER, Manuel JANDER, Max NEUENDORF, Ralf GEIGER, Markus SCHNELL, Matthias HILDENBRAND, Tobias CHALUPKA
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Publication number: 20220262380Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: ApplicationFiled: May 5, 2022Publication date: August 18, 2022Inventors: Markus LOHWASSER, Manuel JANDER, Max NEUENDORF, Ralf GEIGER, Markus SCHNELL, Matthias HILDENBRAND, Tobias CHALUPKA