公开(公告)号：US10063989B2

公开(公告)日：2018-08-28

申请号：US14937647

申请日：2015-11-10

Applicant: Google Inc.

Inventor： Marcin Gorzel ,  Frank Boland ,  Brian O'Toole ,  Ian Kelly

IPC: H04R5/02 ,  H04S7/00 ,  H04R5/00

CPC classification number: H04S7/304 ,  H04S2400/11 ,  H04S2420/01 ,  H04S2420/11

Abstract: Provided are methods and systems for updating a sound field in response to user movement. The methods and systems are less computationally expensive than existing approaches for updating a sound field, and are also suitable for use with arbitrary loudspeaker configurations. The methods and systems provide a dynamic binaural sound field rendering realized with the use of “virtual loudspeakers.” Rather than loudspeaker signals being fed into the physical loudspeakers, the signals are instead filtered with left and right HRIRs (Head Related Impulse Response) corresponding to the spatial locations of these loudspeakers. The sums of the left and right ear signals are then fed into the audio output device of the user.

公开(公告)号：US20190069110A1

公开(公告)日：2019-02-28

申请号：US16108385

申请日：2018-08-22

Applicant: Google Inc.

Inventor： Marcin Gorzel ,  Andrew Allen

IPC: H04S5/00 ,  H04S3/00 ,  G10L19/008 ,  H03G3/30

Abstract: A method of encoding sound objects includes receiving a set of monophonic sound inputs. Each of the set of monophonic sound inputs includes position and orientation information of a sound object relative to a source position. The set of monophonic sound inputs are encoded into a higher order ambisonic (HOA) sound field in a spherical harmonics domain based on a spherical harmonics dataset including a subset of all spherical harmonic coefficients for a given subset of azimuth and elevation angles. Some embodiments include decoding the HOA sound field to generate a set of loudspeaker signals.

公开(公告)号：US09560467B2

公开(公告)日：2017-01-31

申请号：US14937688

申请日：2015-11-10

Applicant: Google Inc.

Inventor： Marcin Gorzel ,  Frank Boland ,  Brian O'Toole ,  Ian Kelly

IPC: H04S7/00 ,  G10L19/008 ,  G10L19/00

CPC classification number: H04S7/304 ,  G10L19/00 ,  G10L19/008 ,  H04S7/306 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/01 ,  H04S2420/11

Abstract: Provided are methods and systems for delivering three-dimensional, immersive spatial audio to a user over a headphone, where the headphone includes one or more virtual speaker conditions. The methods and systems recreate a naturally sounding sound field at the user's ears, including cues for elevation and depth perception. Among numerous other potential uses and applications, the methods and systems of the present disclosure may be implemented for virtual reality applications.

Abstract translation: 提供了用于通过耳机向用户传送三维，沉浸式空间音频的方法和系统，其中耳机包括一个或多个虚拟扬声器状况。 方法和系统在用户的耳朵上重新创建一个自然发出的声场，包括提升和深度感知的线索。 在许多其它潜在用途和应用中，本公开的方法和系统可以针对虚拟现实应用来实现。

公开(公告)号：US09510127B2

公开(公告)日：2016-11-29

申请号：US14410975

申请日：2013-06-27

Applicant: GOOGLE INC.

Inventor： John Squires ,  Marcin Gorzel ,  Ian Kelly ,  Frank Boland

IPC: H04R5/00 ,  H04S7/00

CPC classification number: H04S7/302 ,  H04S7/306 ,  H04S2400/01 ,  H04S2400/11 ,  H04S2420/01 ,  H04S2420/11

Abstract: A method of providing an audio signal comprising spatial information relating to a location of at least one virtual source (202) in a sound field with respect to a first user position comprises obtaining a first audio signal comprising a plurality of signal components, each of the signal components corresponding to a respective one of a plurality of virtual loudspeakers (200a-e) located in the sound field; obtaining an indication of user movement; determining a plurality of panned signal components by applying, in accordance with the indication of user movement, a panning function of a respective order to each of the signal components; and outputting a second audio signal comprising the panned signal components.

Abstract translation: 提供音频信号的方法包括相对于第一用户位置在声场中包括与至少一个虚拟源（202）的位置相关的空间信息的音频信号，包括获得包括多个信号分量的第一音频信号， 对应于位于声场中的多个虚拟扬声器（200a-e）中的相应一个的信号分量; 获取用户移动的指示; 通过根据用户移动的指示，将各个顺序的平移功能应用于每个信号分量来确定多个平移信号分量; 以及输出包括所述平移信号分量的第二音频信号。