Patents by Inventor Andreas Walther
Andreas Walther 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).
-
Publication number: 20240365077Abstract: An apparatus for rendering according to an embodiment is provided. The apparatus is configured to generate an audio output signal for a loudspeaker of a loudspeaker setup from one or more audio objects. Each of the one or more audio objects comprises an audio object signal and exhibits a position. The apparatus comprises an interface configured to receive information on the position of each of the one or more audio objects. Moreover, the apparatus comprises a gain determiner configured to determine gain information for each audio object of the one or more audio objects for the loudspeaker depending on a distance between the position of said audio object and a position of the loudspeaker and depending on distance attenuation information and/or loudspeaker emphasis information.Type: ApplicationFiled: July 4, 2024Publication date: October 31, 2024Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Andreas WALTHER, Hanne STENZEL, Julian KLAPP, Marvin TRÜMPER, Christof FALLER, Markus SCHMIDT
-
Publication number: 20240348999Abstract: An apparatus for generating one or more audio channels for a reproduction device from one or more audio object signals is provided. Each of the one or more audio object signals is associated with an audio object of one or more audio objects. The apparatus is configured to determine first rendering information depending on a position of the reproduction device and depending on a position of each audio object of the one or more audio objects. Moreover, the apparatus is configured to determine second rendering information depending on a capability of the reproduction device to replay spatial sound. Furthermore, the apparatus is configured to generate the one or more audio channels from the one or more audio object signals depending on the first rendering information and depending on the second rendering information.Type: ApplicationFiled: June 21, 2024Publication date: October 17, 2024Inventors: Andreas WALTHER, Sebastian MEYER, Hanne STENZEL, Julian KLAPP, Marvin TRÜMPER
-
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
-
Publication number: 20230292075Abstract: Method for determining a sound field in an enclosed space or at a target position within the enclosed space, the method has the following steps: performing an acoustic measurement at at least one measurement position within the enclosed space or at a single one measurement position within the enclosed space to obtain an interim value set; estimating a surface impedance as first parameter describing the enclosed space based on the interim value set; determining a model of the enclosed space based on the first parameter; and estimating a sound field throughout the enclosed space based on the model of the enclosed space, the sound field describing a sound characteristic for a plurality of positions within the enclosed space.Type: ApplicationFiled: May 17, 2023Publication date: September 14, 2023Inventors: Andreas WALTHER, Albert PRINN, Emanuel HABETS, Youssef EL BABA
-
Patent number: 11671757Abstract: An audio processor for providing loudspeaker signals on the basis of input signals, like channel signals and/or object signals, obtains an information about the position of a listener and an information about the position of a plurality of loudspeakers, or sound transducers. The audio processor selects one or more loudspeakers for a rendering of the objects and/or of the channel objects and/or of the adapted signals, derived from the input signals. The selection depends on the information about the position of the listener and about the positions of the loudspeakers and takes into consideration the information about one or more acoustic obstacles. The audio signal processor renders the objects/channel objects/adapted signals derived from the input signals, in dependence on the information about the position of the listener and about positions of the loudspeakers, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.Type: GrantFiled: February 1, 2022Date of Patent: June 6, 2023Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Andreas Walther, Jürgen Herre, Julian Klapp, Christof Faller, Markus Schmidt
-
Publication number: 20230093185Abstract: An apparatus for processing an audio input signal having one or more audio input channels to obtain an audio output signal having one or more audio output channels has an estimation unit configured to estimate a radiation resistance of each driver of one or more drivers of each loudspeaker of one or more loudspeakers as an estimated radiation resistance; or as an estimated radiation impedance, wherein said estimated radiation impedance has estimated information on the radiation resistance of said driver; and a processing unit configured to obtain the audio output channels by processing each audio input channel depending on the estimated radiation resistance or the estimated radiation impedance of each driver of each loudspeaker.Type: ApplicationFiled: October 6, 2022Publication date: March 23, 2023Inventors: Andreas WALTHER, Albert PRINN, Cagdas TUNA
-
Publication number: 20230009005Abstract: The invention relates to a method for cutting up punching scrap running as waste from a punching device, in particular from a fine blanking press, by means of a waste-cutting device, in particular which is arranged as a progressive tool with respect to the punching device, wherein, by way of the waste-cutting device, the punching scrap is completely cut through perpendicularly to the running direction thereof at a cutting edge by a cutting knife and in this way punching-scrap portions are formed, wherein, together with the stroke of the cutting knife, at least one scrap web of the punching scrap that is spaced apart from the punching-scrap boundaries is cut through by at least one punch which is spaced apart from the cutting knife, preferably by at least two punches, in particular so that each punching-scrap portion is subdivided into at least two punching-scrap sub-portions.Type: ApplicationFiled: May 19, 2022Publication date: January 12, 2023Inventors: Andreas WALTHER, Marc Staempeli
-
Publication number: 20220337951Abstract: An audio processor for providing loudspeaker signals on the basis of input signals, like channel signals and/or object signals, obtains an information about the position of a listener and an information about the position of a plurality of loudspeakers, or sound transducers. The audio processor selects one or more loudspeakers for a rendering of the objects and/or of the channel objects and/or of the adapted signals, derived from the input signals. The selection depends on the information about the position of the listener and about the positions of the loudspeakers and takes into consideration the information about one or more acoustic obstacles. The audio signal processor renders the objects/channel objects/adapted signals derived from the input signals, in dependence on the information about the position of the listener and about positions of the loudspeakers, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.Type: ApplicationFiled: February 1, 2022Publication date: October 20, 2022Inventors: Andreas WALTHER, Jürgen HERRE, Julian KLAPP, Christof FALLER, Markus SCHMIDT
-
Publication number: 20220148559Abstract: An acoustic echo cancellation unit includes: an audio processor configured to receive a multichannel audio signal and including: a first stage which is configured to process the multichannel audio signal to obtain a first set of spatial audio components; and a second stage which is configured to process the first set of spatial audio components to obtain a second set of spatial audio components; an echo cancellation processor configured to perform echo cancellation by use of the first set of spatial audio components or a deviated version of the first set of spatial audio components as reference signal.Type: ApplicationFiled: January 21, 2022Publication date: May 12, 2022Inventors: Moritz WILD, Emanuel HABETS, Edwin MABANDE, Guendalina MILANO, Maria LUIS VALERO, Philipp GOETZ, Andreas WALTHER, Fabian KUECH
-
Patent number: 11290821Abstract: An audio processor for providing loudspeaker signals on the basis of input signals, like channel signals and/or object signals, obtains an information about the position of a listener and an information about the position of a plurality of loudspeakers, or sound transducers. The audio processor selects one or more loudspeakers for a rendering of the objects and/or of the channel objects and/or of the adapted signals, derived from the input signals. The selection depends on the information about the position of the listener and about the positions of the loudspeakers and takes into consideration the information about one or more acoustic obstacles. The audio signal processor renders the objects/channel objects/adapted signals derived from the input signals, in dependence on the information about the position of the listener and about positions of the loudspeakers, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.Type: GrantFiled: February 9, 2021Date of Patent: March 29, 2022Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Andreas Walther, Jürgen Herre, Julian Klapp, Christof Faller, Markus Schmidt
-
Patent number: 11252509Abstract: An audio processor for providing loudspeaker signals on the basis of input signals, like channel signals and/or object signals, obtains an information about the position of a listener and an information about the position of a plurality of loudspeakers, or sound transducers. The audio processor selects one or more loudspeakers for a rendering of the objects and/or of the channel objects and/or of the adapted signals, derived from the input signals. The selection depends on the information about the position of the listener and about the positions of the loudspeakers and takes into consideration the information about one or more acoustic obstacles. The audio signal processor renders the objects/channel objects/adapted signals derived from the input signals, in dependence on the information about the position of the listener and about positions of the loudspeakers, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.Type: GrantFiled: February 9, 2021Date of Patent: February 15, 2022Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Andreas Walther, Jürgen Herre, Julian Klapp, Christof Faller, Markus Schmidt
-
Publication number: 20220038838Abstract: An audio processor for reproducing multichannel audio has a normal layer processing and a lower layer processing. The normal layer processing is configured for processing one or more channels of the object-specific audio or the multichannel audio belonging to a normal layer. The lower layer processing is configured for processing at least one channel or more channels of the object-specific audio or the multichannel audio belonging to a lower layer. The lower layer processing is configured to feed at least one signal belonging to the one channel or the more channels of the lower layer to a subwoofer output.Type: ApplicationFiled: October 14, 2021Publication date: February 3, 2022Inventors: Andreas WALTHER, Yannik GREWE, Julian KLAPP
-
Publication number: 20210306786Abstract: A sound reproduction/simulation system includes at least sound reproduction device driven by one or more audio signals and a processor for processing an input audio stream to generate the one or more audio signals. The processor performs processing based on processing parameters defined by a sound characteristic of a target system.Type: ApplicationFiled: June 10, 2021Publication date: September 30, 2021Inventors: Andreas WALTHER, Harald FUCHS, Marc GAYER
-
Patent number: 11032646Abstract: An audio processor configured for generating, for each of a set of one or more loudspeakers, a set of one or more parameters, which determine a derivation of a loudspeaker signal to be reproduced by the respective loudspeaker from an audio signal, based on a listener position and loudspeaker position of the set of one or more loudspeakers. The audio processor is configured to base the generation of the set of one or more parameters for the set of one or more loudspeakers on a loudspeaker characteristic of at least one of the set of one or more loudspeakers.Type: GrantFiled: October 25, 2019Date of Patent: June 8, 2021Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Andreas Walther, Jürgen Herre, Christof Faller, Julian Klapp
-
Publication number: 20210168552Abstract: An audio processor for providing a plurality of loudspeaker signals, or loudspeaker feeds, on the basis of a plurality of input signals, like channeled signals and/or object signals, is configured to obtain information about the position of a listener, to obtain an information about the position of a plurality of loudspeakers, or sound transducers, which may be placed within the same containment, e.g. a soundbar, to dynamically adapt an allocation of objects and/or channel objects and/or adapted signals, like adapted channel signals, derived from the input signals, like channel signals or channel objects, or like upmixed or downmixed signals, to loudspeakers, and to render the objects and/or the channel objects and/or the adapted signals derived from the input signals, in dependence on the information about the positions of the listener and of the loudspeakers, and on the allocation, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.Type: ApplicationFiled: February 9, 2021Publication date: June 3, 2021Inventors: Andreas WALTHER, Jürgen HERRE, Julian KLAPP, Christof FALLER, Markus SCHMIDT
-
Publication number: 20210168508Abstract: An audio processor for providing loudspeaker signals on the basis of input signals, like channel signals and/or object signals, obtains an information about the position of a listener and an information about the position of a plurality of loudspeakers, or sound transducers. The audio processor selects one or more loudspeakers for a rendering of the objects and/or of the channel objects and/or of the adapted signals, derived from the input signals. The selection depends on the information about the position of the listener and about the positions of the loudspeakers and takes into consideration the information about one or more acoustic obstacles. The audio signal processor renders the objects/channel objects/adapted signals derived from the input signals, in dependence on the information about the position of the listener and about positions of the loudspeakers, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.Type: ApplicationFiled: February 9, 2021Publication date: June 3, 2021Inventors: Andreas WALTHER, Jürgen HERRE, Julian KLAPP, Christof FALLER, Markus SCHMIDT
-
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
-
Patent number: 10682782Abstract: In an apparatus and a method for stripping/pushing out a punched grid and for ejecting a blanked part from a die in a precision blanking press, the force of stripping/pushing out and ejection can be adjusted independent of the knife-edged ring force and the counterstay counteracting force while reducing the mass of the knife-edged ring and counterstay pistons, increasing the stripping/pushing and ejection speeds, and at the same time simplifying the hydraulic circuit.Type: GrantFiled: July 6, 2016Date of Patent: June 16, 2020Assignee: Feintool International Holding AGInventors: Hans-Ruedi Honegger, Andreas Walther, Alex Wehrli
-
Publication number: 20200059724Abstract: An audio processor configured for generating, for each of a set of one or more loudspeakers, a set of one or more parameters, which determine a derivation of a loudspeaker signal to be reproduced by the respective loudspeaker from an audio signal, based on a listener position and loudspeaker position of the set of one or more loudspeakers. The audio processor is configured to base the generation of the set of one or more parameters for the set of one or more loudspeakers on a loudspeaker characteristic of at least one of the set of one or more loudspeakers.Type: ApplicationFiled: October 25, 2019Publication date: February 20, 2020Inventors: Andreas WALTHER, Jürgen HERRE, Christof FALLER, Julian KLAPP
-
Patent number: 10531198Abstract: An apparatus for decomposing a signal having an number of at least three channels includes an analyzer for analyzing a similarity between two channels of an analysis signal related to the signal having at least two analysis channels, wherein the analyzer is configured for using a pre-calculated frequency dependent similarity curve as a reference curve to determine the analysis result. The signal processor processes the analysis signal or a signal derived from the analysis signal or a signal, from which the analysis signal is derived using the analysis result to obtain a decomposed signal.Type: GrantFiled: December 4, 2018Date of Patent: January 7, 2020Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Andreas Walther