Patents by Inventor Jonas Roeden
Jonas Roeden 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: 20240103801Abstract: Embodiments are directed to a method and system for receiving, in a bitstream, metadata associated with the audio data, and analyzing the metadata to determine whether a loudness parameter for a first group of audio playback devices are available in the bitstream. Responsive to determining that the parameters are present for the first group, the system uses the parameters and audio data to render audio. Responsive to determining that the loudness parameters are not present for the first group, the system analyzes one or more characteristics of the first group, and determines the parameter based on the one or more characteristics.Type: ApplicationFiled: October 9, 2023Publication date: March 28, 2024Applicants: DOLBY LABORATORIES LICENSING CORPORATION, DOLBY INTERNATIONAL ABInventors: Jeffrey RIEDMILLER, Scott Gregory NORCROSS, Karl Jonas ROEDEN
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Patent number: 11875805Abstract: There is provided methods and apparatuses for decoding and encoding of audio signals. In particular, a method for decoding includes receiving a waveform-coded signal having a spectral content corresponding to a subset of the frequency range above a cross-over frequency. The waveform-coded signal is interleaved with a parametric high frequency reconstruction of the audio signal above the cross-over frequency. In this way an improved reconstruction of the high frequency bands of the audio signal is achieved.Type: GrantFiled: October 6, 2021Date of Patent: January 16, 2024Assignee: Dolby International ABInventors: Kristofer Kjoerling, Robin Thesing, Harald Mundt, Heiko Purnhagen, Karl Jonas Roeden
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Patent number: 11830510Abstract: A method for decoding an encoded audio bitstream in an audio processing system is disclosed. The method includes extracting from the encoded audio bitstream a first waveform-coded signal comprising spectral coefficients corresponding to frequencies up to a first cross-over frequency for a time frame and performing parametric decoding at a second cross-over frequency for the time frame to generate a reconstructed signal. The second cross-over frequency is above the first cross-over frequency and the parametric decoding uses reconstruction parameters derived from the encoded audio bitstream to generate the reconstructed signal. The method also includes extracting from the encoded audio bitstream a second waveform-coded signal comprising spectral coefficients corresponding to a subset of frequencies above the first cross-over frequency for the time frame and interleaving the second waveform-coded signal with the reconstructed signal to produce an interleaved signal for the time frame.Type: GrantFiled: August 31, 2021Date of Patent: November 28, 2023Assignee: Dolby International ABInventors: Kristofer Kjoerling, Heiko Purnhagen, Harald Mundt, Karl Jonas Roeden, Leif Sehlstrom
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Publication number: 20230345176Abstract: A method and apparatus for reconstructing N audio channels from M audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal representing the M audio channels and decoding the encoded audio signal to obtain a frequency domain representation of the M audio channels. The method further includes extracting a parameter from the bitstream and reconstructing at least one of the N audio channels using the parameter. The parameter represents an angle between two signals, at least one of which is included in the M audio channels.Type: ApplicationFiled: May 3, 2023Publication date: October 26, 2023Applicant: DOLBY INTERNATIONAL ABInventors: Heiko PURNHAGEN, Lars VILLEMOES, Jonas ENGDEGARD, Jonas ROEDEN, Kristofer KJOERLING
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Patent number: 11782672Abstract: Embodiments are directed to a method and system for receiving, in a bitstream, metadata associated with the audio data, and analyzing the metadata to determine whether a loudness parameter for a first group of audio playback devices are available in the bitstream. Responsive to determining that the parameters are present for the first group, the system uses the parameters and audio data to render audio. Responsive to determining that the loudness parameters are not present for the first group, the system analyzes one or more characteristics of the first group, and determines the parameter based on the one or more characteristics.Type: GrantFiled: July 27, 2021Date of Patent: October 10, 2023Assignees: DOLBY LABORATORIES LICENSING CORPORATION, DOLBY INTERNATIONAL ABInventors: Jeffrey Riedmiller, Scott Gregory Norcross, Karl Jonas Roeden
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Publication number: 20230274755Abstract: An audio processing system (100) accepts an audio bitstream having one of a plurality of predefined audio frame rates. The system comprises a front-end component (110), which receives a variable number of quantized spectral components, corresponding to one audio frame in any of the predefined audio frame rates, and performs an inverse quantization according to predetermined, frequency-dependent quantization levels. The front-end component may be agnostic of the audio frame rate. The audio processing system further comprises a frequency-domain processing stage (120) and a sample rate converter (130), which provide a reconstructed audio signal sampled at a target sampling frequency independent of the audio frame rate. By its frame-rate adaptability, the system can be configured to operate frame-synchronously in parallel with a video processing system that accepts plural video frame rates.Type: ApplicationFiled: May 10, 2023Publication date: August 31, 2023Applicant: DOLBY INTERNATIONAL ABInventors: Heiko Purnhagen, Kristofer Kjörling, Alexander Stahlmann, Jens Popp, Karl Jonas Roeden
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Patent number: 11676622Abstract: An audio processing system (100) accepts an audio bitstream having one of a plurality of predefined audio frame rates. The system comprises a front-end component (110), which receives a variable number of quantized spectral components, corresponding to one audio frame in any of the predefined audio frame rates, and performs an inverse quantization according to predetermined, frequency-dependent quantization levels. The front-end component may be agnostic of the audio frame rate. The audio processing system further comprises a frequency-domain processing stage (120) and a sample rate converter (130), which provide a reconstructed audio signal sampled at a target sampling frequency independent of the audio frame rate. By its frame-rate adaptability, the system can be configured to operate frame-synchronously in parallel with a video processing system that accepts plural video frame rates.Type: GrantFiled: June 10, 2021Date of Patent: June 13, 2023Assignee: DOLBY INTERNATIONAL ABInventors: Heiko Purnhagen, Kristofer Kjoerling, Alexander Stahlmann, Jens Popp, Karl Jonas Roeden
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Patent number: 11647333Abstract: A method and apparatus for reconstructing N audio channels from M audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal representing the M audio channels and decoding the encoded audio signal to obtain a frequency domain representation of the M audio channels. The method further includes extracting a parameter from the bitstream and reconstructing at least one of the N audio channels using the parameter. The parameter represents an angle between two signals, at least one of which is included in the M audio channels.Type: GrantFiled: November 22, 2021Date of Patent: May 9, 2023Assignee: Dolby International ABInventors: Heiko Purnhagen, Lars Villemoes, Jonas Engdegard, Jonas Roeden, Kristofer Kjoerling
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Publication number: 20220159379Abstract: A method and apparatus for reconstructing N audio channels from M audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal representing the M audio channels and decoding the encoded audio signal to obtain a frequency domain representation of the M audio channels. The method further includes extracting a parameter from the bitstream and reconstructing at least one of the N audio channels using the parameter. The parameter represents an angle between two signals, at least one of which is included in the M audio channels.Type: ApplicationFiled: November 22, 2021Publication date: May 19, 2022Applicant: DOLBY INTERNATIONAL ABInventors: Heiko PURNHAGEN, Lars VILLEMOES, Jonas ENGDEGARD, Jonas ROEDEN, Kristofer KJOERLING
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Publication number: 20220101865Abstract: There is provided methods and apparatuses for decoding and encoding of audio signals. In particular, a method for decoding includes receiving a waveform-coded signal having a spectral content corresponding to a subset of the frequency range above a cross-over frequency. The waveform-coded signal is interleaved with a parametric high frequency reconstruction of the audio signal above the cross-over frequency. In this way an improved reconstruction of the high frequency bands of the audio signal is achieved.Type: ApplicationFiled: October 6, 2021Publication date: March 31, 2022Applicant: Dolby International ABInventors: Kristofer KJOERLING, Robin THESING, Harald MUNDT, Heiko PURNHAGEN, Karl Jonas ROEDEN
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Publication number: 20220059110Abstract: A method for decoding an encoded audio bitstream in an audio processing system is disclosed. The method includes extracting from the encoded audio bitstream a first waveform-coded signal comprising spectral coefficients corresponding to frequencies up to a first cross-over frequency for a time frame and performing parametric decoding at a second cross-over frequency for the time frame to generate a reconstructed signal. The second cross-over frequency is above the first cross-over frequency and the parametric decoding uses reconstruction parameters derived from the encoded audio bitstream to generate the reconstructed signal. The method also includes extracting from the encoded audio bitstream a second waveform-coded signal comprising spectral coefficients corresponding to a subset of frequencies above the first cross-over frequency for the time frame and interleaving the second waveform-coded signal with the reconstructed signal to produce an interleaved signal for the time frame.Type: ApplicationFiled: August 31, 2021Publication date: February 24, 2022Applicant: DOLBY INTERNATIONAL ABInventors: Kristofer KJOERLING, Heiko PURNHAGEN, Harald MUNDT, Karl Jonas ROEDEN, Leif SEHLSTROM
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Publication number: 20220019404Abstract: Embodiments are directed to a method and system for receiving, in a bitstream, metadata associated with the audio data, and analyzing the metadata to determine whether a loudness parameter for a first group of audio playback devices are available in the bitstream. Responsive to determining that the parameters are present for the first group, the system uses the parameters and audio data to render audio. Responsive to determining that the loudness parameters are not present for the first group, the system analyzes one or more characteristics of the first group, and determines the parameter based on the one or more characteristics.Type: ApplicationFiled: July 27, 2021Publication date: January 20, 2022Applicants: DOLBY LABORATORIES LICENSING CORPORATION, DOLBY INTERNATIONAL ABInventors: Jeffrey RIEDMILLER, Scott Gregory NORCROSS, Karl Jonas ROEDEN
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Patent number: 11195511Abstract: Described herein is a method for creating object-based audio content from a text input for use in audio books and/or audio play, the method including the steps of: a) receiving the text input; b) performing a semantic analysis of the received text input; c) synthesizing speech and effects based on one or more results of the semantic analysis to generate one or more audio objects; d) generating metadata for the one or more audio objects; and e) creating the object-based audio content including the one or more audio objects and the metadata. Described herein are further a computer-based system including one or more processors configured to perform said method and a computer program product comprising a computer-readable storage medium with instructions adapted to carry out said method when executed by a device having processing capability.Type: GrantFiled: July 17, 2019Date of Patent: December 7, 2021Assignees: Dolby Laboratories Licensing Corporation, Dolby International ABInventors: Toni Hirvonen, Daniel Arteaga, Eduard Aylon Pla, Alex Cabrer Manning, Lie Lu, Karl Jonas Roeden
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Publication number: 20210375304Abstract: An audio processing system (100) accepts an audio bitstream having one of a plurality of predefined audio frame rates. The system comprises a front-end component (110), which receives a variable number of quantized spectral components, corresponding to one audio frame in any of the predefined audio frame rates, and performs an inverse quantization according to predetermined, frequency-dependent quantization levels. The front-end component may be agnostic of the audio frame rate. The audio processing system further comprises a frequency-domain processing stage (120) and a sample rate converter (130), which provide a reconstructed audio signal sampled at a target sampling frequency independent of the audio frame rate. By its frame-rate adaptability, the system can be configured to operate frame-synchronously in parallel with a video processing system that accepts plural video frame rates.Type: ApplicationFiled: June 10, 2021Publication date: December 2, 2021Applicant: DOLBY INTERNATIONAL ABInventors: Heiko Purnhagen, Kristofer Kjoerling, Alexander Stahlmann, Jens Popp, Karl Jonas Roeden
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Patent number: 11184709Abstract: A method and apparatus for reconstructing N audio channels from M audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal representing the M audio channels and decoding the encoded audio signal to obtain a frequency domain representation of the M audio channels. The method further includes extracting a parameter from the bitstream and reconstructing at least one of the N audio channels using the parameter. The parameter represents an angle between two signals, at least one of which is included in the M audio channels.Type: GrantFiled: April 13, 2020Date of Patent: November 23, 2021Assignee: Dolby International ABInventors: Heiko Purnhagen, Lars Villemoes, Jonas Engdegard, Jonas Roeden, Kristofer Kjoerling
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Patent number: 11145318Abstract: There is provided methods and apparatuses for decoding and encoding of audio signals. In particular, a method for decoding includes receiving a waveform-coded signal having a spectral content corresponding to a subset of the frequency range above a cross-over frequency. The waveform-coded signal is interleaved with a parametric high frequency reconstruction of the audio signal above the cross-over frequency. In this way an improved reconstruction of the high frequency bands of the audio signal is achieved.Type: GrantFiled: October 24, 2018Date of Patent: October 12, 2021Assignee: Dolby International ABInventors: Kristofer Kjoerling, Robin Thesing, Harald Mundt, Heiko Purnhagen, Karl Jonas Roeden
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Publication number: 20210295820Abstract: Described herein is a method for creating object-based audio content from a text input for use in audio books and/or audio play, the method including the steps of: a) receiving the text input; b) performing a semantic analysis of the received text input; c) synthesizing speech and effects based on one or more results of the semantic analysis to generate one or more audio objects; d) generating metadata for the one or more audio objects; and e) creating the object-based audio content including the one or more audio objects and the metadata. Described herein are further a computer-based system including one or more processors configured to perform said method and a computer program product comprising a computer-readable storage medium with instructions adapted to carry out said method when executed by a device having processing capability.Type: ApplicationFiled: July 17, 2019Publication date: September 23, 2021Applicants: DOLBY INTERNATIONAL AB, DOLBY LABORATORIES LICENSING CORPORATIONInventors: Toni Hirvonen, Daniel Arteaga, Eduard Aylon Pla, Alex Cabrer Manning, Lie Lu, Karl Jonas Roeden
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Patent number: 11114107Abstract: A method for decoding an encoded audio bitstream in an audio processing system is disclosed. The method includes extracting from the encoded audio bitstream a first waveform-coded signal comprising spectral coefficients corresponding to frequencies up to a first cross-over frequency for a time frame and performing parametric decoding at a second cross-over frequency for the time frame to generate a reconstructed signal. The second cross-over frequency is above the first cross-over frequency and the parametric decoding uses reconstruction parameters derived from the encoded audio bitstream to generate the reconstructed signal. The method also includes extracting from the encoded audio bitstream a second waveform-coded signal comprising spectral coefficients corresponding to a subset of frequencies above the first cross-over frequency for the time frame and interleaving the second waveform-coded signal with the reconstructed signal to produce an interleaved signal for the time frame.Type: GrantFiled: October 4, 2019Date of Patent: September 7, 2021Assignee: Dolby International ABInventors: Kristofer Kjoerling, Heiko Purnhagen, Harald Mundt, Karl Jonas Roeden, Leif Sehlstrom
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Patent number: 11080010Abstract: Embodiments are directed to a method and system for receiving, in a bitstream, metadata associated with the audio data, and analyzing the metadata to determine whether a loudness parameter for a first group of audio playback devices are available in the bitstream. Responsive to determining that the parameters are present for the first group, the system uses the parameters and audio data to render audio. Responsive to determining that the loudness parameters are not present for the first group, the system analyzes one or more characteristics of the first group, and determines the parameter based on the one or more characteristics.Type: GrantFiled: June 1, 2020Date of Patent: August 3, 2021Assignees: Dolby Laboratories Licensing Corporation, Dolby International ABInventors: Jeffrey Riedmiller, Scott Gregory Norcross, Karl Jonas Roeden
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Patent number: 11037582Abstract: An audio processing system (100) accepts an audio bitstream having one of a plurality of predefined audio frame rates. The system comprises a front-end component (110), which receives a variable number of quantized spectral components, corresponding to one audio frame in any of the predefined audio frame rates, and performs an inverse quantization according to predetermined, frequency-dependent quantization levels. The front-end component may be agnostic of the audio frame rate. The audio processing system further comprises a frequency-domain processing stage (120) and a sample rate converter (130), which provide a reconstructed audio signal sampled at a target sampling frequency independent of the audio frame rate. By its frame-rate adaptability, the system can be configured to operate frame-synchronously in parallel with a video processing system that accepts plural video frame rates.Type: GrantFiled: February 23, 2018Date of Patent: June 15, 2021Assignee: Dolby International ABInventors: Heiko Purnhagen, Kristofer Kjoerling, Alexander Stahlmann, Jens Popp, Karl Jonas Roeden