公开(公告)号：US09826327B2

公开(公告)日：2017-11-21

申请号：US15024925

申请日：2014-09-26

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Malcolm James Law ,  Vinay Melkote ,  Rhonda Wilson ,  Simon Plain ,  Andy Jaspar

IPC: H04S3/02 ,  G10L19/018 ,  G10L19/24 ,  G10L19/008

CPC classification number: H04S3/02 ,  G10L19/008 ,  G10L19/018 ,  G10L19/24 ,  H04S2400/03

Abstract: Methods which uses interpolated primitive matrices to decode encoded audio to recover (losslessly) content of a multichannel audio program and/or to recover at least one downmix of such content, and encoding methods for generating such encoded audio. In some embodiments, a decoder performs interpolation on a set of seed primitive matrices to determine interpolated matrices for use in rendering channels of the program. Other aspects are a system or device configured to implement any embodiment of the method.

公开(公告)号：US10068577B2

公开(公告)日：2018-09-04

申请号：US15306051

申请日：2015-04-23

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Vinay Melkote ,  Malcolm James Law ,  Roy M. Fejgin

IPC: G10L19/00 ,  G10L19/008 ,  G10L19/20 ,  G10L19/16

Abstract: A method of encoding adaptive audio, comprising receiving N objects and associated spatial metadata that describes the continuing motion of these objects, and partitioning the audio into segments based on the spatial metadata. The method encodes adaptive audio having objects and channel beds by capturing a continuing motion of a number N objects in a time-varying matrix trajectory comprising a sequence of matrices, coding coefficients of the time-varying matrix trajectory in spatial metadata to be transmitted via a high-definition audio format for rendering the adaptive audio through a number M output channels, and segmenting the sequence of matrices into a plurality of sub-segments based on the spatial metadata, wherein the plurality of sub-segments are configured to facilitate coding of one or more characteristics of the adaptive audio.

公开(公告)号：US09794712B2

公开(公告)日：2017-10-17

申请号：US15306454

申请日：2015-04-23

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Vinay Melkote ,  Malcolm James Law

IPC: G10L19/008 ,  H04R3/02 ,  H04S3/02

CPC classification number: H04S3/02 ,  G10L19/008 ,  H04S2400/03 ,  H04S2400/11

Abstract: A method of decomposing a matrix of dimension L-by-N, where L is less than or equal to N, into a sequence of N-by-N unit primitive matrices and a permutation matrix comprising a sequence that is the product of the primitive matrices and the permutation matrix, containing L rows that are substantially close to the provided L-by-N matrix, where the choice of the permutation matrix and the indices of the non-trivial rows in the primitive matrices are chosen to limit the coefficient values in the primitive matrices.