公开(公告)号：US20190205085A1

公开(公告)日：2019-07-04

申请号：US16352607

申请日：2019-03-13

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Nicolas R. TSINGOS ,  Rhonda WILSON ,  Sunil BHARITKAR ,  C. Phillip BROWN ,  Alan J. SEEFELDT ,  Remi AUDFRAY

IPC: G06F3/16 ,  H04S1/00 ,  H04R5/04 ,  H04S7/00

CPC classification number: G06F3/162 ,  G06F3/04842 ,  G06F3/165 ,  H04R5/04 ,  H04S1/007 ,  H04S7/304 ,  H04S7/306 ,  H04S2400/03 ,  H04S2400/13 ,  H04S2420/01

Abstract: Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.

公开(公告)号：US20180218576A1

公开(公告)日：2018-08-02

申请号：US15747096

申请日：2016-08-03

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

Inventor： Sunil BHARITKAR ,  Charles Q. ROBINSON ,  Vivek KUMAR ,  Jeffrey RIEDMILLER ,  Christof FERSCH

IPC: G08B6/00 ,  G10L19/16

CPC classification number: G08B6/00 ,  G06F3/016 ,  G10L19/00 ,  G10L19/167

Abstract: Techniques for low bit rate parametric encoding of haptic-tactile signals. The techniques encompass a parametric encoding method. The parametric encoding method includes the steps of: for at least one frame of a plurality of frames of a source haptic-tactile signal, representing the source haptic-tactile signal in the frame as a set of parameters and according to a functional representation; and including the set of parameters in a bit stream that encodes the source haptic-tactile signal. The functional representation is based on one of a set of orthogonal functionals, or polynomial approximation. For example, the functional representation can be based on one of Chebyshev functionals of the first kind through order n, Chebyshev functionals of the second kind through order n, or k-th order polynomial approximation.

公开(公告)号：US20170373656A1

公开(公告)日：2017-12-28

申请号：US15543554

申请日：2016-02-17

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Sunil BHARITKAR ,  Charles Q. ROBINSON

IPC: H03G5/16 ,  H04R29/00 ,  H04R3/04 ,  H04R1/40 ,  H04R3/00

CPC classification number: H03G5/165 ,  H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R29/001 ,  H04S7/301

Abstract: A method for generating a perceptual equalization (EQ) filter applicable to an audio signal to equalize the audio signal, including: generating a full EQ filter for use in performing full equalization on the signal; and modifying the frequency-amplitude spectrum of the full EQ filter in accordance with a dip detection threshold function, thereby generating the perceptual EQ filter, where the dip detection threshold function is indicative of minimum perceivable amplitude of each of at least a number of different dips in the frequency-amplitude spectrum of an acoustic signal. Also, a method for equalizing an audio signal, including: generating a full EQ filter for use in performing full equalization on the signal, modifying the frequency-amplitude spectrum of the full EQ filter in accordance with at least one dip detection threshold value, thereby generating a perceptual EQ filter, and applying the perceptual EQ filter to perceptually equalize the signal.