Using Sound Class Specific Coding, Hybrid Encoders, Object-based Coding (epo) Patents (Class 704/E19.042)
  • Method and apparatus for processing an audio signal, audio decoder, and audio encoder to filter a discontinuity by a filter which depends on two fir filters and pitch lag
    Patent number: 11869525
    Abstract: A method is described that processes an audio signal. A discontinuity between a filtered past frame and a filtered current frame of the audio signal is removed using linear predictive filtering.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: January 9, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
    Inventors: Emmanuel Ravelli, Manuel Jander, Grzegorz Pietrzyk, Martin Dietz, Marc Gayer
  • Audio signal decoder, method for decoding an audio signal and computer program using cascaded audio object processing stages
    Patent number: 8958566
    Abstract: An audio signal decoder for providing an upmix signal representation in dependence on a downmix signal representation and an object-related parametric information includes an object separator configured to decompose the downmix signal representation, to provide a first audio information describing a first set of one or more audio objects of a first audio object type and a second audio information describing a second set of one or more audio objects of a second audio object type, in dependence on the downmix signal representation and using at least a part of the object-related parametric information.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 17, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Oliver Hellmuth, Cornelia Falch, Juergen Herre, Johannes Hilpert, Leon Terentiv, Falko Ridderbusch
  • Method and an apparatus for processing speech, audio, and speech/audio signal using mode information
    Patent number: 8781843
    Abstract: A method of processing a signal, which includes receiving at least one of a first signal and a second signal, receiving mode information, and decoding the at least one of the first signal and the second signal using at least one of a first coding scheme and a second coding scheme according to the mode information. Further, the mode information is information for indicating that a prescribed mode corresponds to which one of at least three modes.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: July 15, 2014
    Assignee: Intellectual Discovery Co., Ltd.
    Inventors: Hyen-O Oh, Hong Goo Kang, Chang Heon Lee, Sang Wook Shin, Yang Won Jung
  • INFORMATION REUSE IN LOW POWER SCALABLE HYBRID AUDIO ENCODERS
    Publication number: 20120035936
    Abstract: A system and method of reusing information in low power scalable hybrid audio encoders. The system and method provides a transform coder and parameterization of high frequency spectrum (SBR).
    Type: Application
    Filed: August 5, 2010
    Publication date: February 9, 2012
    Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD
    Inventors: Evelyn Kurniawati, Sapna George