Patents by Inventor Alexandra Craciun
Alexandra Craciun 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: 11176952Abstract: An apparatus for providing direction information based on a reproduced audio signal with an embedded watermark includes a signal processor, which is adapted to process at least two received watermarked audio signals recorded by at least two audio receivers at different spatial positions. The signal processor is adapted to process the received watermarked audio signals to obtain a receiver-specific information for each received watermarked audio signal. The receiver-specific information depends on the embedded watermarks embedded in the received watermarked audio signals. Moreover, the apparatus includes a direction information provider for providing direction information based on the receiver-specific information for each received watermarked audio signal.Type: GrantFiled: February 25, 2014Date of Patent: November 16, 2021Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Oliver Thiergart, Giovanni Del Galdo, Florian Kolbeck, Alexandra Craciun, Stefan Kraegeloh, Juliane Borsum, Tobias Bliem
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Patent number: 10284947Abstract: An apparatus for microphone positioning includes a spatial power distribution determiner and a spatial information estimator. The spatial power distribution determiner is adapted to determine a spatial power density indicating power values for a plurality of locations of an environment based on sound source information indicating one or more power values and one or more position values of one or more sound sources located in the environment. The spatial information estimator is adapted to estimate acoustic spatial information based on the spatial power density.Type: GrantFiled: April 12, 2012Date of Patent: May 7, 2019Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Giovanni Del Galdo, Oliver Thiergart, Fabian Kuech, Emanuel Habets, Alexandra Craciun
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Patent number: 10109282Abstract: An apparatus for generating at least one audio output signal based on an audio data stream having audio data relating to one or more sound sources is provided. The apparatus has a receiver for receiving the audio data stream having the audio data. The audio data has one or more pressure values for each one of the sound sources. Furthermore, the audio data has one or more position values indicating a position of one of the sound sources for each one of the sound sources. Moreover, the apparatus has a synthesis module for generating the at least one audio output signal based on at least one of the one or more pressure values of the audio data of the audio data stream and based on at least one of the one or more position values of the audio data of the audio data stream.Type: GrantFiled: May 31, 2013Date of Patent: October 23, 2018Assignees: Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Giovanni Del Galdo, Oliver Thiergart, Juergen Herre, Fabian Kuech, Emanuel Habets, Alexandra Craciun, Achim Kuntz
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Patent number: 9484038Abstract: An apparatus for generating a merged audio data stream is provided. The apparatus includes a demultiplexer for obtaining a plurality of single-layer audio data streams, wherein each input audio data stream includes one or more layers, wherein the demultiplexer is adapted to demultiplex each one of one or more input audio data streams having one or more layers into two or more demultiplexed audio data streams having exactly one layer. Furthermore, the apparatus includes a merging module for generating the merged audio data stream based on the plurality of single-layer audio data streams. Each layer of the input data audio streams, of the demultiplexed audio data streams, of the single-layer data streams and of the merged audio data stream includes a pressure value of a pressure signal, a position value and a diffuseness value as audio data.Type: GrantFiled: April 12, 2012Date of Patent: November 1, 2016Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Giovanni Del Galdo, Oliver Thiergart, Juergen Herre, Fabian Kuech, Emanuel Habets, Alexandra Craciun, Achim Kuntz
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Patent number: 9396731Abstract: An apparatus for generating an audio output signal to simulate a recording of a virtual microphone at a configurable virtual position in an environment includes a sound events position estimator and an information computation module. The former is adapted to estimate a sound source position indicating a position of a sound source in the environment, wherein the sound events position estimator is adapted to estimate the sound source position based on first and second direction information provided by first and second real spatial microphones, respectively, located at first and second real microphone positions in the environment, respectively. The information computation module is adapted to generate the audio output signal based on a first recorded audio input signal, on the first real microphone position, on the virtual position of the virtual microphone, and on the sound source position.Type: GrantFiled: May 29, 2013Date of Patent: July 19, 2016Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Juergen Herre, Fabian Kuech, Markus Kallinger, Giovanni Del Galdo, Oliver Thiergart, Dirk Mahne, Achim Kuntz, Michael Kratschmer, Alexandra Craciun
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Publication number: 20140172435Abstract: An apparatus for providing direction information based on a reproduced audio signal with an embedded watermark includes a signal processor, which is adapted to process at least two received watermarked audio signals recorded by at least two audio receivers at different spatial positions. The signal processor is adapted to process the received watermarked audio signals to obtain a receiver-specific information for each received watermarked audio signal. The receiver-specific information depends on the embedded watermarks embedded in the received watermarked audio signals. Moreover, the apparatus includes a direction information provider for providing direction information based on the receiver-specific information for each received watermarked audio signal.Type: ApplicationFiled: February 25, 2014Publication date: June 19, 2014Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Oliver Thiergart, Giovanni Del Galdo, Florian Kolbeck, Alexandra Craciun, Stefan Kraegeloh, Juliane Borsum, Tobias Bliem
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Publication number: 20130268280Abstract: An apparatus for generating at least one audio output signal based on an audio data stream having audio data relating to one or more sound sources is provided. The apparatus has a receiver for receiving the audio data stream having the audio data. The audio data has one or more pressure values for each one of the sound sources. Furthermore, the audio data has one or more position values indicating a position of one of the sound sources for each one of the sound sources. Moreover, the apparatus has a synthesis module for generating the at least one audio output signal based on at least one of the one or more pressure values of the audio data of the audio data stream and based on at least one of the one or more position values of the audio data of the audio data stream.Type: ApplicationFiled: May 31, 2013Publication date: October 10, 2013Inventors: Giovanni DEL GALDO, Oliver THIERGART, Juergen HERRE, Fabian KUECH, Emanuel HABETS, Alexandra CRACIUN, Achim KUNTZ
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Publication number: 20130259243Abstract: An apparatus for generating an audio output signal to simulate a recording of a virtual microphone at a configurable virtual position in an environment includes a sound events position estimator and an information computation module. The former is adapted to estimate a sound source position indicating a position of a sound source in the environment, wherein the sound events position estimator is adapted to estimate the sound source position based on first and second direction information provided by first and second real spatial microphones, respectively, located at first and second real microphone positions in the environment, respectively. The information computation module is adapted to generate the audio output signal based on a first recorded audio input signal, on the first real microphone position, on the virtual position of the virtual microphone, and on the sound source position.Type: ApplicationFiled: May 29, 2013Publication date: October 3, 2013Inventors: Juergen HERRE, Fabian KUECH, Markus KALLINGER, Giovanni DEL GALDO, Oliver THIERGART, Dirk MAHNE, Achim KUNTZ, Michael KRATSCHMER, Alexandra CRACIUN
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Publication number: 20130142342Abstract: An apparatus for microphone positioning includes a spatial power distribution determiner and a spatial information estimator. The spatial power distribution determiner is adapted to determine a spatial power density indicating power values for a plurality of locations of an environment based on sound source information indicating one or more power values and one or more position values of one or more sound sources located in the environment. The spatial information estimator is adapted to estimate acoustic spatial information based on the spatial power density.Type: ApplicationFiled: April 12, 2012Publication date: June 6, 2013Inventors: Giovanni Del Galdo, Oliver Thiergart, Fabian Kuech, Emanuel Habets, Alexandra Craciun
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Publication number: 20130142341Abstract: An apparatus for generating a merged audio data stream is provided. The apparatus includes a demultiplexer for obtaining a plurality of single-layer audio data streams, wherein each input audio data stream includes one or more layers, wherein the demultiplexer is adapted to demultiplex each one of one or more input audio data streams having one or more layers into two or more demultiplexed audio data streams having exactly one layer. Furthermore, the apparatus includes a merging module for generating the merged audio data stream based on the plurality of single-layer audio data streams. Each layer of the input data audio streams, of the demultiplexed audio data streams, of the single-layer data streams and of the merged audio data stream includes a pressure value of a pressure signal, a position value and a diffuseness value as audio data.Type: ApplicationFiled: April 12, 2012Publication date: June 6, 2013Inventors: Giovanni Del Galdo, Oliver Thiergart, Juergen Herre, Fabian Kuech, Emanuel Habets, Alexandra Craciun, Achim Kuntz