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1. 发明申请

WO2012088336A2 AUDIO SPATIALIZATION AND ENVIRONMENT SIMULATION 审中-公开
标题翻译：音频空间化和环境模拟
公开(公告)号：WO2012088336A2
公开(公告)日：2012-06-28
申请号：PCT/US2011066623
申请日：2011-12-21
申请人： MAHABUB JERRY , BERNSEE STEPHAN M , SMITH GARY , GENAUDIO INC
发明人： MAHABUB JERRY , BERNSEE STEPHAN M , SMITH GARY
IPC分类号： H04S3/00
CPC分类号： H04S5/00 , H04R2499/13 , H04S1/00 , H04S3/00 , H04S2400/03 , H04S2420/01
摘要： Methods and apparatus are disclosed for processing an audio sound source to create four-dimensional spatialized sound. A virtual sound source may be moved along a path in three-dimensional space over a specified time period to achieve four-dimensional sound localization. The various embodiments described herein provide methods and systems for converting existing mono, 2-channel and/or multi-channel audio signals into spatialized audio signals have two or more audio channels. The incoming audio signals may be down-mixed, up-mixed or otherwise translated into fewer, greater or the same number of audio channels. The various embodiments also describe methods, systems and apparatus for generating low frequency effect and center channel signals from incoming audio signals having one or more channels.
摘要翻译：公开了用于处理音频声源以产生四维空间化声音的方法和装置。虚拟声源可以在三维空间中的路径上移动规定的时间段以实现四维声音定位。本文描述的各种实施例提供了用于将现有的单声道，2声道和/或多声道音频信号转换为具有两个或更多个音频通道的空间化音频信号的方法和系统。传入的音频信号可以被混合，混合或以其他方式转换成更少，更大或相同数量的音频通道。各种实施例还描述了用于从具有一个或多个信道的输入音频信号产生低频效应和中心信道信号的方法，系统和装置。

2. 发明申请

WO2008106680A2 AUDIO SPATIALIZATION AND ENVIRONMENT SIMULATION 审中-公开
标题翻译：音频空间化与环境模拟
公开(公告)号：WO2008106680A2
公开(公告)日：2008-09-04
申请号：PCT/US2008/055669
申请日：2008-03-03
申请人： MAHABUB, Jerry , BERNSEE, Stephan, M. , SMITH, Gary
发明人： MAHABUB, Jerry , BERNSEE, Stephan, M. , SMITH, Gary
IPC分类号： H04R5/02
CPC分类号： H04S7/30 , H04R5/033 , H04R5/04 , H04S7/305 , H04S2400/11 , H04S2420/01
摘要： A method and apparatus for processing an audio sound source to create four-dimensional spatialized sound. A virtual sound source may be moved along a path in three-dimensional space over a specified time period to achieve four-dimensional sound localization. A binaural filter for a desired spatial point is applied to the audio waveform to yield a spatialized waveform that, when the spatialized waveform is played from a pair of speakers, the sound appears to emanate from the chosen spatial point instead of the speakers. A binaural filter for a spatial point is simulated by interpolating nearest neighbor binaural filters chosen from a plurality of pre-defined binaural filters. The audio waveform may be processed digitally in overlapping blocks of data using a Short-Time Fourier transform. The localized sound may be further processed for Doppler shift and room simulation.
摘要翻译：用于处理音频声源以创建四维空间化声音的方法和设备。虚拟声源可以在指定的时间段内沿着三维空间中的路径移动以实现四维声音定位。将所需空间点的双耳滤波器应用于音频波形以产生空间化波形，当从一对扬声器播放空间化波形时，声音看起来似乎从所选空间点而不是扬声器发出。通过内插从多个预定义的双耳滤波器中选择的最近邻双耳滤波器来模拟用于空间点的双耳滤波器。使用短时傅里叶变换可以在重叠的数据块中数字处理音频波形。本地化的声音可能会进一步处理多普勒频移和房间模拟。

3. 发明申请

WO2008106680A3 AUDIO SPATIALIZATION AND ENVIRONMENT SIMULATION 审中-公开
标题翻译：音频空间化和环境模拟
公开(公告)号：WO2008106680A3
公开(公告)日：2008-10-16
申请号：PCT/US2008055669
申请日：2008-03-03
申请人： MAHABUB JERRY , BERNSEE STEPHAN M , SMITH GARY
发明人： MAHABUB JERRY , BERNSEE STEPHAN M , SMITH GARY
IPC分类号： H04R5/02
CPC分类号： H04S7/30 , H04R5/033 , H04R5/04 , H04S7/305 , H04S2400/11 , H04S2420/01
摘要： A method and apparatus for processing an audio sound source to create four-dimensional spatialized sound. A virtual sound source may be moved along a path in three-dimensional space over a specified time period to achieve four-dimensional sound localization. A binaural filter for a desired spatial point is applied to the audio waveform to yield a spatialized waveform that, when the spatialized waveform is played from a pair of speakers, the sound appears to emanate from the chosen spatial point instead of the speakers. A binaural filter for a spatial point is simulated by interpolating nearest neighbor binaural filters chosen from a plurality of pre-defined binaural filters. The audio waveform may be processed digitally in overlapping blocks of data using a Short-Time Fourier transform. The localized sound may be further processed for Doppler shift and room simulation.
摘要翻译：一种用于处理音频声源以产生四维空间化声音的方法和装置。虚拟声源可以在三维空间中的路径上移动规定的时间段以实现四维声音定位。用于所需空间点的双耳滤波器被施加到音频波形以产生空间化波形，当从一对扬声器播放空间化波形时，声音似乎从所选择的空间点而不是扬声器发出。通过内插从多个预定义双耳滤波器中选择的最近邻双耳滤波器来模拟空间点的双耳滤波器。音频波形可以使用短时傅里叶变换以数字方式在重叠的数据块中进行数字处理。本地声音可进一步处理多普勒频移和室内模拟。

4. 发明申请

WO2005089360A3 METHOD AND APPARATUS FOR CREATING SPATIALIZD SOUND 审中-公开
公开(公告)号：WO2005089360A3
公开(公告)日：2005-09-29
申请号：PCT/US2005/008689
申请日：2005-03-15
申请人： MAHABUB, Jerry
发明人： MAHABUB, Jerry
IPC分类号： H04R1/10 , H04R5/00 , H04R5/02 , H03G3/00
摘要： A method and apparatus for creating spatialized sound, including the operations of determining a spatial point in a spherical coordinate system, and applying an impulse response filter corresponding to the spatial point to a first segment of the audio waveform to yield a spatialized waveform. The spatialized waveform emulates audio characteristics of a non-spatialized waveform emanating from the chosen spatial point. That is, when the spatialized waveform is played from a pair of speakers, the played sound apparently emanates from the chosen spatial point instead of the speakers. A finite impulse response filter may be employed to spatialize the audio waveform. The finite impulse response filter may be derived from a head-related transfer function modeled in spherical coordinates, rather than a typical Cartesian coordinate system. The spatialized audio waveform ignores speaker cross-talk effects, and requires no specialized decoders, processors, or software logic to recreate the spatialized sound.

5. 发明申请

WO2012088336A3 AUDIO SPATIALIZATION AND ENVIRONMENT SIMULATION 审中-公开
公开(公告)号：WO2012088336A3
公开(公告)日：2012-06-28
申请号：PCT/US2011/066623
申请日：2011-12-21
申请人： MAHABUB, Jerry , BERNSEE, Stephan M. , SMITH, Gary , GENAUDIO, INC.
发明人： MAHABUB, Jerry , BERNSEE, Stephan M. , SMITH, Gary
IPC分类号： H04S3/00
摘要： Methods and apparatus are disclosed for processing an audio sound source to create four-dimensional spatialized sound. A virtual sound source may be moved along a path in three-dimensional space over a specified time period to achieve four-dimensional sound localization. The various embodiments described herein provide methods and systems for converting existing mono, 2-channel and/or multi-channel audio signals into spatialized audio signals have two or more audio channels. The incoming audio signals may be down-mixed, up-mixed or otherwise translated into fewer, greater or the same number of audio channels. The various embodiments also describe methods, systems and apparatus for generating low frequency effect and center channel signals from incoming audio signals having one or more channels.

6. 发明申请

WO2010048157A1 AUDIO SPATIALIZATION AND ENVIRONMENT SIMULATION 审中-公开
标题翻译：音频空间化和环境模拟
公开(公告)号：WO2010048157A1
公开(公告)日：2010-04-29
申请号：PCT/US2009/061294
申请日：2009-10-20
申请人： GENAUDIO, INC. , MAHABUB, Jerry , BERNSEE, Stephan, M. , SMITH, Gary
发明人： MAHABUB, Jerry , BERNSEE, Stephan, M. , SMITH, Gary
IPC分类号： H04R5/00
CPC分类号： H04R5/00 , G10L19/018 , H04R5/04 , H04S1/002 , H04S7/40 , H04S2400/07 , H04S2420/01 , H04S2420/07
摘要： Methods are disclosed for improving sound localization of the human ear. In some embodiments, the method may include creating virtual movement of a plurality of localized sources by applying a periodic function to one or more location parameters of a head related transfer function (HRTF).
摘要翻译：公开了用于改善人耳的声音定位的方法。在一些实施例中，该方法可以包括通过对头部相关传递函数（HRTF）的一个或多个位置参数应用周期函数来创建多个局部源的虚拟移动。

7. 发明申请

WO2005089360A2 METHOD AND APPARATUS FOR CREATING SPATIALIZD SOUND 审中-公开
标题翻译：用于创造空间声音的方法和装置
公开(公告)号：WO2005089360A2
公开(公告)日：2005-09-29
申请号：PCT/US2005008689
申请日：2005-03-15
申请人： MAHABUB JERRY
发明人： MAHABUB JERRY
IPC分类号： H04S7/00
CPC分类号： H04R5/00 , H04S7/30 , H04S2420/01
摘要： A method and apparatus for creating spatialized sound, including the operations of determining a spatial point in a spherical coordinate system, and applying an impulse response filter corresponding to the spatial point to a first segment of the audio waveform to yield a spatialized waveform. The spatialized waveform emulates audio characteristics of a non-spatialized waveform emanating from the chosen spatial point. That is, when the spatialized waveform is played from a pair of speakers, the played sound apparently emanates from the chosen spatial point instead of the speakers. A finite impulse response filter may be employed to spatialize the audio waveform. The finite impulse response filter may be derived from a head-related transfer function modeled in spherical coordinates, rather than a typical Cartesian coordinate system. The spatialized audio waveform ignores speaker cross-talk effects, and requires no specialized decoders, processors, or software logic to recreate the spatialized sound.
摘要翻译：一种用于创建空间化声音的方法和装置，包括确定球面坐标系中的空间点的操作，以及将与空间点相对应的脉冲响应滤波器应用于音频波形的第一段以产生空间化波形。空间化波形模拟从所选择的空间点发出的非空间化波形的音频特性。也就是说，当从一对扬声器播放空间化波形时，播放的声音显然从所选择的空间点而不是扬声器发出。可以使用有限脉冲响应滤波器来使音频波形空间化。有限脉冲响应滤波器可以从以球面坐标建模的头部相关传递函数导出，而不是典型的笛卡尔坐标系。空间化音频波形忽略扬声器串扰效应，并且不需要专门的解码器，处理器或软件逻辑来重现空间化声音。

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