公开(公告)号：US20200158865A1

公开(公告)日：2020-05-21

申请号：US16198238

申请日：2018-11-21

申请人： Microsoft Technology Licensing, LLC

发明人： Sai Sankalp ARRABOLU ,  Wilson Jacob DREEWES ,  Brandon Myles ARTEAGA ,  Namita BALACHANDER

IPC分类号： G01S15/04 ,  G01S15/88 ,  G09B21/00 ,  A63F9/00

摘要： Described herein is a system for generating echolocation sounds to assist a user having no sight or limited sight to navigate a three-dimensional space (e.g., physical environment, computer gaming experience, and/or virtual reality experience). Input is received from a user to generate echolocation sounds to navigate a three-dimensional space. Based at least on the received input, a digital representation of the three-dimensional space is segmented into one or more depth planes using an unsupervised machine learning algorithm. For each depth plane, object segments are determined for each object within the particular depth plane. Locations of a plurality of echo sound nodes are determined in accordance with the depth level and surface area of each object defined by the determined segments. The echolocation sounds comprising a spatialized sound from each echo sound node originating from the determined location are generated.

公开(公告)号：US20180310116A1

公开(公告)日：2018-10-25

申请号：US15491897

申请日：2017-04-19

申请人： Microsoft Technology Licensing, LLC

发明人： Brandon Myles ARTEAGA ,  Wilson Jacob DREEWES ,  Jeffrey Michael DAVIS ,  Zainuddin QAZI ,  Boris Eduardo Baracaldo DOIKOVA

IPC分类号： H04S7/00 ,  H04R5/033 ,  H04N13/02 ,  G06T19/00 ,  G06F3/01

CPC分类号： H04S7/304 ,  A61F9/08 ,  G01S15/42 ,  G01S15/88 ,  G06F3/012 ,  G06T19/006 ,  G09B21/006 ,  H04N13/204 ,  H04R5/0335 ,  H04S2400/01 ,  H04S2400/11 ,  H04S2420/01

摘要： Examples are disclosed that relate to a head-mounted device configured to perform virtual echolocation. The head-mounted device is configured to cast an array of rays at specified angles from a position derived from a pose of the head-mounted device in a physical environment, identify a plurality of intersection points of the rays with a virtual model of the physical environment, for each identified intersection point, modify an audio signal based on a head-related transfer function corresponding to the intersection point to produce a plurality of spatialized audio signals, for each spatialized audio signal, determine a time-of-flight adjustment based upon a distance between the corresponding intersection point and the position from which the rays were cast, and output each spatialized audio signal to one or more speakers with a delay based on the time-of-flight adjustment.