公开(公告)号：US11653142B2

公开(公告)日：2023-05-16

申请号：US17465563

申请日：2021-09-02

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Warren Mansfield ,  Alan J. Seefeldt ,  Peter Michael Razukas ,  Arun Sambandam

IPC: H04R1/26 ,  H04R1/02 ,  H04R3/14 ,  H04R5/02 ,  H04R27/00 ,  H04S7/00

CPC classification number: H04R1/26 ,  H04R1/02 ,  H04R3/14 ,  H04R5/02 ,  H04R27/00 ,  H04S7/30 ,  H04R2227/003 ,  H04R2227/005 ,  H04R2420/07 ,  H04S2400/03

Abstract: Embodiments are directed to a speaker system that contains an array of multiple dispersion drivers that creates an expansive acoustic pattern to playback multi-channel audio content through a standalone speaker. The speaker system comprises an interface receiving stereo audio; an upmixer generating surround sound formatted audio from the stereo audio including one or more height channels; a virtualizer/downmixer component coupled to the upmixer and generating speaker feeds for two or more loudspeaker output sections, configured to play back the stereo audio, wherein each output section is further configured to play its own dedicated stereo audio signals; and a set of drivers each coupled to a respective output section and configured to project sound in at least two different dispersion patterns.

公开(公告)号：US11140471B2

公开(公告)日：2021-10-05

申请号：US16489364

申请日：2018-02-28

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Warren Mansfield ,  Alan J. Seefeldt ,  Peter Michael Razukas ,  Arun Sambandam

IPC: H04R1/26 ,  H04R1/02 ,  H04R3/14 ,  H04R5/02 ,  H04R27/00 ,  H04S7/00

Abstract: Embodiments are directed to a speaker system that contains an array of multiple dispersion drivers that creates an expansive acoustic pattern to playback multi-channel audio content through a standalone speaker. The speaker system comprises an interface receiving stereo audio; an upmixer generating surround sound formatted audio from the stereo audio including one or more height channels; a virtualizer/downmixer component coupled to the upmixer and generating speaker feeds for two or more loudspeaker output sections, configured to play back the stereo audio, wherein each output section is further configured to play its own dedicated stereo audio signals; and a set of drivers each coupled to a respective output section and configured to project sound in at least two different dispersion patterns.

公开(公告)号：US10587982B2

公开(公告)日：2020-03-10

申请号：US16060372

申请日：2016-12-14

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： David Matthew Fischer ,  Warren Mansfield ,  Adam Christopher Noel ,  Timothy James Eggerding ,  Philip Nicol

IPC: H04R5/02 ,  H04S7/00 ,  H04R1/26 ,  H04R1/32 ,  H04R3/12 ,  H04S3/00

Abstract: Systems and methods are described for an adaptive audio system that renders reflected sound for adaptive audio systems in different ways depending on the orientation of at least one speaker in a set of speakers. A speaker of the system may comprise an integrated speaker having front-firing and upward-firing drivers, a sensor to determine the orientation of the speaker (e.g., horizontal or vertical) and a transceiver and control unit that transmits the orientation to a decoder and receives updated speaker feeds from the renderer based on the orientation.

公开(公告)号：US09986338B2

公开(公告)日：2018-05-29

申请号：US15107031

申请日：2015-01-06

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Warren Mansfield ,  Eugene Edward Radzik ,  Alan J. Seefeldt ,  Jared Smith ,  C. Phillip Brown ,  Michael Smithers

IPC: H04R5/02 ,  H04S7/00 ,  H04R3/14 ,  H04R1/34 ,  H04R5/04

CPC classification number: H04R5/02 ,  H04R1/345 ,  H04R3/14 ,  H04R5/04 ,  H04R2201/021 ,  H04R2201/025 ,  H04R2205/024 ,  H04S7/301 ,  H04S7/305 ,  H04S7/307 ,  H04S2400/11 ,  H04S2420/07

Abstract: Embodiments are directed to speakers and circuits that reflect sound off a wall surface (114) to a listening location at a distance from a speaker. The reflected sound (103) provides direct audio cues to reproduce audio objects that have direct audio components without the need for direct firing speakers. The speaker comprises sideward firing drivers (108) to reflect sound off of the wall surface (114) and represents a virtual direct speaker (116). A virtual direct filter is applied to the sideward-firing driver signal to improve the perception of direct audio transmitted by the sideward firing speaker (108) to provide optimum reproduction of the reflected sound. The virtual direct filter may be incorporated as part of a crossover circuit that separates the full band and sends high frequency sound to the sideward-firing driver (108).