Patents by Inventor Hannes Muesch

Hannes Muesch 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: 20160071527
    Abstract: A method and system for filtering a multi-channel audio signal having a speech channel and at least one non-speech channel, to improve intelligibility of speech determined by the signal. In typical embodiments, the method includes steps of determining at least one attenuation control value indicative of a measure of similarity between speech-related content determined by the speech channel and speech-related content determined by the non-speech channel, and attenuating the non-speech channel in response to the at least one attenuation control value. Typically, the attenuating step includes scaling of a raw attenuation control signal (e.g., a ducking gain control signal) for the non-speech channel in response to the at least one attenuation control value. Some embodiments are a general or special purpose processor programmed with software or firmware and/or otherwise configured to perform filtering in accordance the invention.
    Type: Application
    Filed: November 16, 2015
    Publication date: March 10, 2016
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Hannes Muesch
  • Patent number: 9219973
    Abstract: A method and system for filtering a multi-channel audio signal having a speech channel and at least one non-speech channel, to improve intelligibility of speech determined by the signal. In typical embodiments, the method includes steps of determining at least one attenuation control value indicative of a measure of similarity between speech-related content determined by the speech channel and speech-related content determined by the non-speech channel, and attenuating the non-speech channel in response to the at least one attenuation control value. Typically, the attenuating step includes scaling of a raw attenuation control signal (e.g., a ducking gain control signal) for the non-speech channel in response to the at least one attenuation control value. Some embodiments are a general or special purpose processor programmed with software or firmware and/or otherwise configured to perform filtering in accordance the invention.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 22, 2015
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Hannes Muesch
  • Publication number: 20150348546
    Abstract: An audio processing apparatus and an audio processing method are described. In one embodiment, the audio processing apparatus include an audio masker separator for separating from a first audio signal an audio material comprising a sound other than stationary noise and utterance meaningful in semantics, as an audio masker candidate. The apparatus also includes a first context analyzer for obtaining statistics regarding contextual information of detected audio masker candidates, and a masker library builder for building a masker library or updating an existing masker library by adding, based on the statistics, at least one audio masker candidate as an audio masker into the masker library, wherein audio maskers in the maker library are used to be inserted into a target position in a second audio signal to conceal defects in the second audio signal.
    Type: Application
    Filed: November 27, 2013
    Publication date: December 3, 2015
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Xuejing SUN, Shen HUANG, Poppy CRUM, Hannes MUESCH, Glenn N. DICKINS, Michael ECKERT
  • Publication number: 20150243300
    Abstract: According to one aspect, a method for detecting voice activity is disclosed, the method including receiving a frame of an input audio signal, the input audio signal having an sample rate; dividing the frame into a plurality of subbands based on the sample rate, the plurality of subbands including at least a lowest subband and a highest subband; filtering the lowest subband with a moving average filter to reduce an energy of the lowest subband; estimating a noise level for each of the plurality of subbands; calculating a signal to noise ratio value for each of the plurality of subbands; and determining a speech activity level of the frame based on an average of the calculated signal to noise ratio values and a weighted average of an energy of each of the plurality of subbands. Other aspects include audio decoders that decode audio that was encoded using the methods described herein.
    Type: Application
    Filed: May 1, 2015
    Publication date: August 27, 2015
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Hannes Muesch
  • Publication number: 20150207710
    Abstract: Described are: a method, an apparatus, and a tangible computer-readable storage medium comprising instructions to instruct one or more processors to carry out a method. One set of methods is for the transmit side of a communication link and another set of methods is for the receive side. A transmit side method includes assigning one of a set of classifications to media, e.g., voice/audio packets transmitted in a sequence, different classifications impacting differently a measure of perceptual quality calculated at the receive side if packets of the respective classifications are lost. A present packet is sent to the receive side containing the classification of a previous packet.
    Type: Application
    Filed: June 26, 2013
    Publication date: July 23, 2015
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Glenn N. Dickins, Hannes Muesch
  • Publication number: 20150142424
    Abstract: The invention relates to audio signal processing. More specifically, the invention relates to enhancing multichannel audio, such as television audio, by applying a gain to the audio that has been smoothed between portions of the audio. The invention relates to methods, apparatus for performing such methods, and to software stored on a computer-readable medium for causing a computer to perform such methods.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 21, 2015
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Hannes Muesch
  • Patent number: 8972250
    Abstract: The invention relates to audio signal processing. More specifically, the invention relates to enhancing multichannel audio, such as television audio, by applying a gain to the audio that has been smoothed between portions of the audio. The invention relates to methods, apparatus for performing such methods, and to software stored on a computer-readable medium for causing a computer to perform such methods.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: March 3, 2015
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Hannes Muesch
  • Patent number: 8892228
    Abstract: At least one segment is identified in an audio signal. The audio segment is associated with an artifact within the audio signal and has a time duration. At least one stored sound clip is retrieved, which has a time duration that exceeds the time duration associated with the audio segment. The retrieved sound clip is mixed with the audio signal and the retrieved sound clip audibly compensates for the audio artifact.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: November 18, 2014
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Hannes Muesch
  • Patent number: 8577676
    Abstract: In one embodiment the present invention includes a method of improving audibility of speech in a multi-channel audio signal. The method includes comparing a first characteristic and a second characteristic of the multi-channel audio signal to generate an attenuation factor. The first characteristic corresponds to a first channel of the multi-channel audio signal that contains speech and non-speech audio, and the second characteristic corresponds to a second channel of the multi-channel audio signal that contains predominantly non-speech audio. The method further includes adjusting the attenuation factor according to a speech likelihood value to generate an adjusted attenuation factor. The method further includes attenuating the second channel using the adjusted attenuation factor.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: November 5, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Hannes Muesch
  • Patent number: 8494840
    Abstract: The invention relates to audio signal processing and speech enhancement. In accordance with one aspect, the invention combines a high-quality audio program that is a mix of speech and non-speech audio with a lower-quality copy of the speech components contained in the audio program for the purpose of generating a high-quality audio program with an increased ratio of speech to non-speech audio such as may benefit the elderly, hearing impaired or other listeners. Aspects of the invention are particularly useful for television and home theater sound, although they may be applicable to other audio and sound applications. The invention relates to methods, apparatus for performing such methods, and to software stored on a computer-readable medium for causing a computer to perform such methods.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: July 23, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Hannes Muesch
  • Publication number: 20130006619
    Abstract: A method and system for filtering a multi-channel audio signal having a speech channel and at least one non-speech channel, to improve intelligibility of speech determined by the signal. In typical embodiments, the method includes steps of determining at least one attenuation control value indicative of a measure of similarity between speech-related content determined by the speech channel and speech-related content determined by the non-speech channel, and attenuating the non-speech channel in response to the at least one attenuation control value. Typically, the attenuating step includes scaling of a raw attenuation control signal (e.g., a ducking gain control signal) for the non-speech channel in response to the at least one attenuation control value. Some embodiments are a general or special purpose processor programmed with software or firmware and/or otherwise configured to perform filtering in accordance the invention.
    Type: Application
    Filed: February 28, 2011
    Publication date: January 3, 2013
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Hannes Muesch
  • Publication number: 20120310635
    Abstract: The invention relates to audio signal processing. More specifically, the invention relates to enhancing multichannel audio, such as television audio, by applying a gain to the audio that has been smoothed between portions of the audio. The invention relates to methods, apparatus for performing such methods, and to software stored on a computer-readable medium for causing a computer to perform such methods.
    Type: Application
    Filed: August 10, 2012
    Publication date: December 6, 2012
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Hannes Muesch
  • Patent number: 8271276
    Abstract: The invention relates to audio signal processing. More specifically, the invention relates to enhancing multichannel audio, such as television audio, by applying a gain to the audio that has been smoothed between segments of the audio. The invention relates to methods, apparatus for performing such methods, and to software stored on a computer-readable medium for causing a computer to perform such methods.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: September 18, 2012
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Hannes Muesch
  • Publication number: 20120221328
    Abstract: The invention relates to audio signal processing. More specifically, the invention relates to enhancing multichannel audio, such as television audio, by applying a gain to the audio that has been smoothed between segments of the audio. The invention relates to methods, apparatus for performing such methods, and to software stored on a computer-readable medium for causing a computer to perform such methods.
    Type: Application
    Filed: May 3, 2012
    Publication date: August 30, 2012
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Hannes Muesch
  • Publication number: 20120201386
    Abstract: Metadata comprising a set of gain values for creating a dominance effect is automatically generated. Automatically generating the metadata includes receiving multiple audio streams and a dominance criterion for at least one of the audio streams. A set of gains is computed for one or more audio streams based on the dominance criterion for the at least one audio stream and metadata is generated with the set of gains.
    Type: Application
    Filed: October 5, 2010
    Publication date: August 9, 2012
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: Jeffrey C. Riedmiller, Regunathan Radhakrishnan, Hannes Muesch
  • Patent number: 8195454
    Abstract: The invention relates to audio signal processing. More specifically, the invention relates to enhancing entertainment audio, such as television audio, to improve the clarity and intelligibility of speech, such as dialog and narrative audio. The invention relates to methods, apparatus for performing such methods, and to software stored on a computer-readable medium for causing a computer to perform such methods.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: June 5, 2012
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Hannes Muesch
  • Patent number: 8041062
    Abstract: A personal sound system is described that includes a wireless network supporting an ear-level module, a companion module and a phone. Other audio sources are supported as well. A configuration processor configures the ear-level module and the companion module for private communications, and configures the ear-level module for a plurality of signal processing modes, including a hearing aid mode, for a corresponding plurality of sources of audio data. The ear module is configured to handle variant audio sources, and control switching among them.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: October 18, 2011
    Assignee: Sound ID
    Inventors: Ephram Cohen, Nicholas R. Michael, Hannes Muesch, Caslav Pavlovic, Amad Shamsoddini, Chirag Shah
  • Publication number: 20110250932
    Abstract: A personal sound system is described that includes a wireless network supporting an ear-level module, a companion module and a phone. Other audio sources are supported as well. A configuration processor configures the ear-level module and the companion module for private communications, and configures the ear-level module for a plurality of signal processing modes, including a hearing aid mode, for a corresponding plurality of sources of audio data. The ear module is configured to handle variant audio sources, and control switching among them.
    Type: Application
    Filed: June 22, 2011
    Publication date: October 13, 2011
    Applicant: Sound ID
    Inventors: Ephram Cohen, Nicholas R. Michael, Hannes Muesch, Caslav Pavlovic, Amad Shamsoddini, Chirag Shah
  • Publication number: 20110082575
    Abstract: At least one segment is identified in an audio signal. The audio segment is associated with an artifact within the audio signal and has a time duration. At least one stored sound clip is retrieved, which has a time duration that exceeds the time duration associated with the audio segment. The retrieved sound clip is mixed with the audio signal and the retrieved sound clip audibly compensates for the audio artifact.
    Type: Application
    Filed: June 9, 2009
    Publication date: April 7, 2011
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Hannes Muesch
  • Publication number: 20110054887
    Abstract: In one embodiment the present invention includes a method of improving audibility of speech in a multi-channel audio signal. The method includes comparing a first characteristic and a second characteristic of the multi-channel audio signal to generate an attenuation factor. The first characteristic corresponds to a first channel of the multi-channel audio signal that contains speech and non-speech audio, and the second characteristic corresponds to a second channel of the multi-channel audio signal that contains predominantly non-speech audio. The method further includes adjusting the attenuation factor according to a speech likelihood value to generate an adjusted attenuation factor. The method further includes attenuating the second channel using the adjusted attenuation factor.
    Type: Application
    Filed: April 17, 2009
    Publication date: March 3, 2011
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Hannes Muesch