公开(公告)号：US20170366914A1

公开(公告)日：2017-12-21

申请号：US15625927

申请日：2017-06-16

申请人： EDWARD STEIN ,  MARTIN WALSH ,  GUANGJI SHI ,  DAVID CORSELLO

发明人： EDWARD STEIN ,  MARTIN WALSH ,  GUANGJI SHI ,  DAVID CORSELLO

IPC分类号： H04S7/00 ,  H04S3/00

CPC分类号： H04S7/304 ,  G10L19/008 ,  G10L19/167 ,  H04S3/008 ,  H04S7/303 ,  H04S7/305 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/11

摘要： The methods and apparatus described herein optimally represent full 3D audio mixes (e.g., azimuth, elevation, and depth) as “sound scenes” in which the decoding process facilitates head tracking. Sound scene rendering can be performed for the listener's orientation (e.g., yaw, pitch, roll) and 3D position (e.g., x, y, z), and can be modified for a change in the listener's orientation or 3D position. As described below, the ability to render an audio object in both the near-field and far-field enables the ability to fully render depth of not just objects, but any spatial audio mix decoded with active steering/panning, such as Ambisonics, matrix encoding, etc., thereby enabling full translational head tracking (e.g., user movement) beyond simple rotation in the horizontal plane, or 6-degrees-of-freedom (6-DOF) tracking and rendering.

公开(公告)号：US20170366913A1

公开(公告)日：2017-12-21

申请号：US15625913

申请日：2017-06-16

申请人： Edward Stein ,  Martin Walsh ,  Guangji Shi ,  David Corsello

发明人： Edward Stein ,  Martin Walsh ,  Guangji Shi ,  David Corsello

IPC分类号： H04S7/00 ,  H04S3/00

CPC分类号： H04S7/304 ,  G10L19/008 ,  G10L19/167 ,  H04S3/008 ,  H04S7/303 ,  H04S7/305 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2420/01 ,  H04S2420/03 ,  H04S2420/11

摘要： The method and apparatus described herein make use of multiple sets of head related transfer functions (HRTFs) that have been synthesized or measured at various distances from a reference head, spanning from the near-field to the boundary of the far-field. Additional synthetic or measured transfer functions maybe used to extend to the interior of the head, i.e., for distances closer than near-field. In addition, the relative distance-related gains of each set of HRTFs are normalized to the far-field HRTF gains.