Patents by Inventor Marc Emerit

Marc Emerit 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: 20220060840
    Abstract: A method for calibrating a distributed audio reproduction system, including a set of N heterogeneous loudspeakers controlled by a server. This method includes the following steps: a) placing a microphone in front of a first loudspeaker of the set; b) capturing), by the microphone, a calibration signal sent to tile loudspeaker at a first time and reproduced by same; c) capturing, by the microphone, the calibration signal sent with a known time delay to the N?1 other loudspeakers of the set and reproduced by these N?1 loudspeakers; d) capturing, by the microphone, the calibration signal sent to the first loudspeaker at a second time and reproduced again by same; e) repeating steps a) to d) for the N loudspeakers of the set; f) determining a plurality of heterogeneity factors to be corrected for the set of N loudspeakers by analysing the data thus captured; g) correcting the determined heterogeneity factors.
    Type: Application
    Filed: December 9, 2019
    Publication date: February 24, 2022
    Inventors: Grégory Pallone, Marc Emerit, Stéphane Louis Dit Picard, Thomas Joubaud
  • Patent number: 11076224
    Abstract: Method and device for processing a video sequence containing a succession of images of one or more participant speakers, captured by a wide-angle camera. The method includes: capturing sound using a microphone having a plurality of sensors for capturing a sound field; processing the audio data captured by the microphone in order to determine at least one direction of origin of sound coming from a participant, relative to an optical axis of the wide-angle camera; generating a signal including data concerning the direction of origin of the sound relative to the optical axis of the camera, for the purpose of utilizing the signal when rendering the captured images by zooming into an area around the participant emitting the sound for which the direction of origin corresponds to the data of the signal.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: July 27, 2021
    Inventors: Andrzej Zielinski, Robert Warzocha, Robert Kolodynski, Stéphane Ragot, Jérôme Daniel, Marc Emerit
  • Publication number: 20210110835
    Abstract: A method of parametric coding of a multichannel digital audio signal including coding a signal arising from a channels reduction processing applied to the multichannel signal and coding spatialization information of the multichannel signal. The method includes the following acts: extraction of a plurality of items of spatialization information of the multichannel signal; obtaining at least one representation model of the extracted spatialization information; determination of at least one angle parameter of a model obtained; coding the at least one determined angle parameter so as to code the spatialization information extracted during the coding of spatialization information. Also provided are a method for decoding such a coded signal and corresponding coding and decoding devices.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Inventors: Bertrand Fatus, Stephane Ragot, Marc Emerit
  • Patent number: 10930290
    Abstract: A method of parametric coding of a multichannel digital audio signal including coding a signal arising from a channels reduction processing applied to the multichannel signal and coding spatialization information of the multichannel signal. The method includes the following acts: extraction of a plurality of items of spatialization information of the multichannel signal; obtaining at least one representation model of the extracted spatialization information; determination of at least one angle parameter of a model obtained; coding the at least one determined angle parameter so as to code the spatialization information extracted during the coding of spatialization information. Also provided are a method for decoding such a coded signal and corresponding coding and decoding devices.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: February 23, 2021
    Assignee: ORANGE
    Inventors: Bertrand Fatus, Stephane Ragot, Marc Emerit
  • Publication number: 20200389722
    Abstract: Method and device for processing a video sequence containing a succession of images of one or more participant speakers, captured by a wide-angle camera. The method includes: capturing sound using a microphone having a plurality of sensors for capturing a sound field; processing the audio data captured by the microphone in order to determine at least one direction of origin of sound coming from a participant, relative to an optical axis of the wide-angle camera; generating a signal including data concerning the direction of origin of the sound relative to the optical axis of the camera, for the purpose of utilizing the signal when rendering the captured images by zooming into an area around the participant emitting the sound for which the direction of origin corresponds to the data of the signal.
    Type: Application
    Filed: December 4, 2018
    Publication date: December 10, 2020
    Inventors: Andrzej Zielinski, Robert Warzocha, Robert Kolodynski, Stéphane Ragot, Jérôme Daniel, Marc Emerit
  • Patent number: 10555105
    Abstract: The invention relates to a method for processing customized data representative of the directivity of an customized audio system, the method comprising the following steps: —obtaining (101), for each individual of an initial set of individuals, at least one customized suite of filters; —determining (103) N independent components common to the suites of filters obtained; —decomposing (104) each of the suites obtained into a first base constructed from the N independent components with a view to obtaining, for each suite of filters, a first suite of weighting coefficients; —decomposing (105) each first suite of weighting coefficients into a second base of P independent components, so as to obtain a second suite of weighting coefficients; —storing (106) each second suite of weighting coefficients obtained in association with an identifier of an individual from among the initial set of individuals.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: February 4, 2020
    Assignee: ORANGE
    Inventors: Felipe Rugeles Ospina, Marc Emerit
  • Publication number: 20190066701
    Abstract: A method of parametric coding of a multichannel digital audio signal including coding a signal arising from a channels reduction processing applied to the multichannel signal and coding spatialization information of the multichannel signal. The method includes the following acts: extraction of a plurality of items of spatialization information of the multichannel signal; obtaining at least one representation model of the extracted spatialization information; determination of at least one angle parameter of a model obtained; coding the at least one determined angle parameter so as to code the spatialization information extracted during the coding of spatialization information. Also provided are a method for decoding such a coded signal and corresponding coding and decoding devices.
    Type: Application
    Filed: March 10, 2017
    Publication date: February 28, 2019
    Inventors: Bertrand Fatus, Stephane Ragot, Marc Emerit
  • Publication number: 20180288554
    Abstract: The invention relates to a method for processing customized data representative of the directivity of an customized audio system, the method comprising the following steps: —obtaining (101), for each individual of an initial set of individuals, at least one customized suite of filters; —determining (103) N independent components common to the suites of filters obtained; —decomposing (104) each of the suites obtained into a first base constructed from the N independent components with a view to obtaining, for each suite of filters, a first suite of weighting coefficients; —decomposing (105) each first suite of weighting coefficients into a second base of P independent components, so as to obtain a second suite of weighting coefficients; —storing (106) each second suite of weighting coefficients obtained in association with an identifier of an individual from among the initial set of individuals.
    Type: Application
    Filed: November 30, 2016
    Publication date: October 4, 2018
    Inventors: Felipe Rugeles Ospina, Marc Emerit
  • Patent number: 9848274
    Abstract: A method of sound spatialization, in which at least one filtering process, including summation, is applied, to at least two input signals, the filtering process comprising: the application of at least one first room effect transfer function, the first transfer function being specific to each input signal, and the application of at least one second room effect transfer function, the second transfer function being common to all input signals. The method is such that it comprises a step of weighting at least one input signal with a weighting factor, said weighting factor being specific to each of the input signals.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: December 19, 2017
    Assignee: Orange
    Inventors: Gregory Pallone, Marc Emerit
  • Patent number: 9641953
    Abstract: A sound spatialization, with the application of at least one transfer function with room effect to at least one sound signal. This application amounts to multiplying, in the spectral range, spectral components of the sound signal by the spectral components of a filter corresponding to the transfer function, each spectral component of the filter having a temporal evolution in a time-frequency representation. In particular, the spectral components of the filter are especially ignored, for the above-mentioned multiplications of components, beyond a threshold frequency and after at least a given instant in said time-frequency representation.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: May 2, 2017
    Assignee: Orange
    Inventors: Gregory Pallone, Marc Emerit
  • Publication number: 20160269850
    Abstract: A sound spatialization, with the application of at least one transfer function with room effect to at least one sound signal. This application amounts to multiplying, in the spectral range, spectral components of the sound signal by the spectral components of a filter corresponding to the transfer function, each spectral component of the filter having a temporal evolution in a time-frequency representation. In particular, the spectral components of the filter are especially ignored, for the above-mentioned multiplications of components, beyond a threshold frequency and after at least a given instant in said time-frequency representation.
    Type: Application
    Filed: October 14, 2014
    Publication date: September 15, 2016
    Applicant: ORANGE
    Inventors: Gregory Pallone, Marc Emerit
  • Publication number: 20160174013
    Abstract: A method of sound spatialization, in which at least one filtering process, including summation, is applied, to at least two input signals, the filtering process comprising: the application of at least one first room effect transfer function, the first transfer function being specific to each input signal, and the application of at least one second room effect transfer function, the second transfer function being common to all input signals. The method is such that it comprises a step of weighting at least one input signal with a weighting factor, said weighting factor being specific to each of the input signals.
    Type: Application
    Filed: July 4, 2014
    Publication date: June 16, 2016
    Inventors: Gregory Pallone, Marc Emerit
  • Patent number: 9215544
    Abstract: The invention concerns sound spatialization with multichannel encoding for binaural reproduction on two loudspeakers, the spatial encoding being defined by encoding functions associated with multiple encoding channels and the decoding by applying filters for binaural reproduction.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: December 15, 2015
    Assignee: Orange
    Inventors: Julien Faure, Jérôme Daniel, Marc Emerit
  • Patent number: 8976972
    Abstract: Processing of sound data encoded in a sub-band domain, for dual-channel playback of binaural or Transaural® type is provided, in which a matrix filtering is applied so as to pass from a sound representation with N channels with N>0, to a dual-channel representation. This sound representation with N channels comprises considering N virtual loudspeakers surrounding the head of a listener, and, for each virtual loudspeaker of at least some of the loudspeakers: a first transfer function specific to an ipsilateral path from the loudspeaker to a first ear of the listener, facing the loudspeaker, and a second transfer function specific to a contralateral path from said loudspeaker to the second ear of the listener, masked from the loudspeaker by the listener's head. The matrix filtering comprises a multiplicative coefficient defined by the spectrum, in the sub-band domain, of the second transfer function deconvolved with the first transfer function.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: March 10, 2015
    Assignee: Orange
    Inventors: Marc Emerit, Rozenn Nicol, Grégory Pallone
  • Patent number: 8605909
    Abstract: The invention concerns a method and a system for sound spatialization of a first set of not less than one of the audio channels encoded on of a number of frequency subbands (SBk) and decoded in a transformed domain (Fl, C, Fr, Sr, SI, Ife) into a second set of not less than two (Bl, Br) sound channels in the time domain, from modelling filters converted into a gain and a delay applicable in the transformed domain involving: filtering (A) through equalization, subband delay of the signal by applying at least one gain and one delay to generate from each of said encoded channels an equalized and delayed component; adding (B) a subset of equalized and delayed signals to create a number of filtered signals corresponding to not less than two; synthesizing (C) each of said filtered signals to obtain the second set of not less than two reproduction sound channels (Bl, Br) in the time domain.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: December 10, 2013
    Assignee: France Telecom
    Inventors: Marc Emerit, Pierrick Philippe, David Virette
  • Publication number: 20120201389
    Abstract: Processing of sound data encoded in a sub-band domain, for dual-channel playback of binaural or transaural® type is provided, in which a matrix filtering is applied so as to pass from a sound representation with N channels with N>0, to a dual-channel representation. This sound representation with N channels comprises considering N virtual loudspeakers surrounding the head of a listener, and, for each virtual loudspeaker of at least some of the loudspeakers: a first transfer function specific to an ipsilateral path from the loudspeaker to a first ear of the listener, facing the loudspeaker, and a second transfer function specific to a contralateral path from said loudspeaker to the second ear of the listener, masked from the loudspeaker by the listener's head. The matrix filtering comprises a multiplicative coefficient defined by the spectrum, in the sub-band domain, of the second transfer function deconvolved with the first transfer function.
    Type: Application
    Filed: October 8, 2010
    Publication date: August 9, 2012
    Applicant: France Telecom
    Inventors: Marc Emerit, Rozenn Nicol, Grégory Pallone
  • Patent number: 8059824
    Abstract: The invention concerns a process for joint synthesis and spatialization of multiple sound sources in associated spatial positions, including: a) a step of assigning to each source at least one parameter (pi) representing an amplitude; b) a step of spatialization consisting in implementing an encoding into a plurality of channels, wherein each amplitude (pi) is duplicated to be multiplied to a specialization gain (gim), each spatialization gain being determined for one encoding channel (pgm) and for a source to be spatialized (Si); c) a step of grouping (R) the parameters multiplied by the gains (Pim), in respective channels (pg1, . . . , pgM), by applying a sum of said multiplied parameters (pim) on all the sources (Si) for each channel (pgm), and d) a step of parametric synthesis (SYNTH(I), . . . , SYNTH(M)) applied to each of the channels (pgm).
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: November 15, 2011
    Assignee: France Telecom
    Inventors: Grégory Pallone, Marc Emerit, David Virette
  • Patent number: 7804963
    Abstract: A method of comparison between pieces of information characterizing reference values and pieces of information characterizing current values of sound-reproducing systems of a system of (n) microphones mi and (p) speakers hpj for the control of said sound-reproducing systems characterized in that: A: for each speaker hpj, at least one sound signal S is sent on the speaker hpj, for each microphone mi, a piece of information hpjmi is retrieved, this piece of information characterizing the sound-reproducing system comprising the speaker hpj and the microphone mi, B: a reference matrix Qr is saved, this reference matrix being constituted by all the pieces of reference information hpjmi obtained following the sending of the sound signal S, C: as soon as a comparison is to be made, the step A is run with a sound signal S? to obtain current information on a matrix Q, D: the matrices Q and Qr are compared.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: September 28, 2010
    Assignee: France Telecom SA
    Inventors: Jean-Philippe Thomas, Marc Emerit
  • Publication number: 20090232317
    Abstract: The invention concerns a method and a system for sound spatialization of a first set of not less than one of the audio channels encoded on of a number of frequency subbands (SBk) and decoded in a transformed domain (Fl, C, Fr, Sr, SI, Ife) into a second set of not less than two (Bl, Br) sound channels in the time domain, from modelling filters converted into a gain and a delay applicable in the transformed domain involving: filtering (A) through equalization, subband delay of the signal by applying at least one gain and one delay to generate from each of said encoded channels an equalized and delayed component; adding (B) a subset of equalized and delayed signals to create a number of filtered signals corresponding to not less than two; synthesizing (C) each of said filtered signals to obtain the second set of not less than two reproduction sound channels (Bl, Br) in the time domain.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 17, 2009
    Applicant: FRANCE TELECOM
    Inventors: Marc Emerit, Pierrick Philippe, David Virette
  • Publication number: 20090097663
    Abstract: The invention concerns a process for joint synthesis and spatialization of multiple sound sources in associated spatial positions, including: a) a step of assigning to each source at least one parameter (pi) representing an amplitude; b) a step of spatialization consisting in implementing an encoding into a plurality of channels, wherein each amplitude (pi) is duplicated to be multiplied to a specialization gain (gim), each spatialization gain being determined for one encoding channel (pgm) and for a source to be spatialized (Si); c) a step of grouping (R) the parameters multiplied by the gains (Pim), in respective channels (pg1, . . . , pgM), by applying a sum of said multiplied parameters (pim) on all the sources (Si) for each channel (pgm), and d) a step of parametric synthesis (SYNTH(I), . . . , SYNTH(M)) applied to each of the channels (pgm).
    Type: Application
    Filed: March 1, 2007
    Publication date: April 16, 2009
    Applicant: France Telecom
    Inventors: Gregory Pallone, Marc Emerit, David Virette