公开(公告)号：US10306396B2

公开(公告)日：2019-05-28

申请号：US15957876

申请日：2018-04-19

申请人： The United States of America, as represented by the Secretary of the Air Force

发明人： Griffin D. Romigh

IPC分类号： H04R5/02 ,  H04R5/00 ,  H04R7/00 ,  H04S7/00 ,  H04S3/00

摘要： An improved methodology for binaural rendering of audio signals that are perceived by a user to originate from a real-world spatial location is disclosed. Embodiments enable personalized HRTF selection from among a data store containing a plurality of candidate HRTFs using an evaluation-based personalization strategy. One or more relational models personalize the selection. These relational models can relate candidate HRTFs to each other and a particular user to other users so that only a subset of the candidate HRTFs require evaluation. Candidate HRTFs can be evaluated according to one or more selection policies, and relational models can be updated based on actual responses from a user to virtual audio signals that are rendered by a candidate HRTF.

公开(公告)号：US09788135B2

公开(公告)日：2017-10-10

申请号：US14560792

申请日：2014-12-04

申请人： The United States of America as Represented by the Secretary of the Air Force

发明人： Griffin D. Romigh

IPC分类号： H04R5/00 ,  H04S5/00

CPC分类号： H04S1/002 ,  H04S5/005 ,  H04S7/303 ,  H04S2420/01 ,  H04S2420/11

摘要： A method generating a virtual audio signal for a listener. The method includes estimating spherical harmonic coefficients based on an individual character of the listener. The estimated spherical harmonic coefficients are compared to a distribution of known spherical harmonic coefficients. The estimated spherical harmonic coefficients are iteratively updated and compared to the distribution of known spherical harmonic coefficients until convergence. The individual character and the converged spherical harmonic coefficients are then applied to a mono-channel sound.

公开(公告)号：US10070239B2

公开(公告)日：2018-09-04

申请号：US15434818

申请日：2017-02-16

申请人： The United States of America as Represented by the Secretary of the Air Force

发明人： Griffin D. Romigh

IPC分类号： H04R5/00 ,  H04S1/00 ,  H04S7/00

摘要： A Head-Related Transfer Function. The Head-Related Transfer Function includes listener-specific and general components. The listener-specific component includes listener-specific, vertical variations in the Head-Related Transfer Function. The general component includes non-listener-specific, lateral variations in the Head-Related Transfer Function.

公开(公告)号：US09173032B2

公开(公告)日：2015-10-27

申请号：US13832831

申请日：2013-03-15

申请人： The United States of America as Represented by the Secretary of the Air Force

发明人： Douglas S. Brungart ,  Griffin D. Romigh

IPC分类号： H04R5/04 ,  H04S7/00 ,  H04S5/00

CPC分类号： H04R5/04 ,  H04R2430/03 ,  H04S5/00 ,  H04S7/304 ,  H04S2420/01 ,  H04S2420/11

摘要： A method of enhancing vertical polar localization of a head related transfer (HRTF). The method includes splitting an audio signal and generating left and right output signals by determining a log lateral component of the respective frequency-dependent audio gain that is equal to a median log frequency-dependent audio gain for all audio signals of that channel having a desired perceived source location. A vertical magnitude of the respective audio signal is enhanced by determining a log vertical component of the respective frequency-dependent audio gain that is equal to a product of a first enhancement factor and a different between the respective frequency-dependent audio gain at the desired perceived source location and the lateral magnitude of respective audio signal. The output signals are time delayed according to an interaural time.

摘要翻译： 一种增强头部相关转移（HRTF）的垂直极化定位的方法。 该方法包括通过确定相应频率相关音频增益的对数横向分量来产生左和右输出信号，该频率相关音频增益等于具有期望频率的该频道的所有音频信号的所有音频信号的中值对数频率相关音频增益 感知源位置。 通过确定相应的频率相关音频增益的对数垂直分量来增强相应音频信号的垂直幅度，其等于第一增强因子与期望感知的相应频率相关音频增益之间的不同之乘积 源位置和相应音频信号的横向幅度。 输出信号根据耳间时间延时。