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1. 发明申请

US20170325043A1 IMMERSIVE AUDIO REPRODUCTION SYSTEMS 审中-公开
公开(公告)号：US20170325043A1
公开(公告)日：2017-11-09
申请号：US15587903
申请日：2017-05-05
申请人： Jean-Marc Jot , Daekyoung Noh , Ryan James Cassidy , Themis George Katsianos , Oveal Walker
发明人： Jean-Marc Jot , Daekyoung Noh , Ryan James Cassidy , Themis George Katsianos , Oveal Walker
IPC分类号： H04S7/00
CPC分类号： H04S7/302 , H04S3/002 , H04S5/005 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/01
摘要： Systems and methods can provide an elevated, virtual loudspeaker source in a three-dimensional soundfield using loudspeakers in a horizontal plane. In an example, a processor circuit can receive at least one height audio signal that includes information intended for reproduction using a loudspeaker that is elevated relative to a listener, and optionally offset from the listener's facing direction by a specified azimuth angle. A first virtual height filter can be selected for use based on the specified azimuth angle virtualized audio signal can be generated by applying the first virtual height filter to the at least one height audio signal. When the virtualized audio signal is reproduced using one or more loudspeakers in the horizontal plane, the virtualized audio signal can be perceived by the listener as originating from an elevated loudspeaker source that corresponds to the azimuth angle.

2. 发明申请

US20140350944A1 ENCODING AND REPRODUCTION OF THREE DIMENSIONAL AUDIO SOUNDTRACKS 有权
标题翻译：编码和复制三维音频声音
公开(公告)号：US20140350944A1
公开(公告)日：2014-11-27
申请号：US14026984
申请日：2012-03-15
申请人： Jean-Marc Jot , Zoran Fejzo , James D. Johnston
发明人： Jean-Marc Jot , Zoran Fejzo , James D. Johnston
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , G10L19/173 , G10L19/20 , H04S3/004 , H04S3/008 , H04S2400/01 , H04S2400/03 , H04S2420/01
摘要： The present invention provides a novel end-to-end solution for creating, encoding, transmitting, decoding and reproducing spatial audio soundtracks. The provided soundtrack encoding format is compatible with legacy surround-sound encoding formats, so that soundtracks encoded in the new format may be decoded and reproduced on legacy playback equipment with no loss of quality compared to legacy formats.
摘要翻译：本发明提供了用于创建，编码，传输，解码和再现空间音频声轨的新型端到端解决方案。所提供的音轨编码格式与传统的环绕声编码格式兼容，使得以旧格式编码的音轨可以在传统播放设备上被解码和再现，与传统格式相比，没有质量损失。

3. 发明授权

US08107631B2 Correlation-based method for ambience extraction from two-channel audio signals 有权
标题翻译：从双声道音频信号提取气氛的相关方法
公开(公告)号：US08107631B2
公开(公告)日：2012-01-31
申请号：US12196239
申请日：2008-08-21
申请人： Juha Oskari Merimaa , Michael M. Goodwin , Jean-Marc Jot
发明人： Juha Oskari Merimaa , Michael M. Goodwin , Jean-Marc Jot
IPC分类号： H04R5/00
CPC分类号： H04S7/30 , G10L19/008 , H04S3/002
摘要： A method of ambience extraction includes analyzing an input signal to determine the time-dependent and frequency-dependent amount of ambience in the input signal, wherein the amount of ambience is determined based on a signal model and correlation quantities computed from the input signals and wherein the ambience is extracted using a multiplicative time-frequency mask. Another method of ambience extraction includes compensating a bias in the estimation of a short-term cross-correlation coefficient. In addition, systems having various modules for implementing the above methods are disclosed.
摘要翻译：一种环境提取方法包括分析输入信号以确定输入信号中的时间依赖性和与频率相关的环境量，其中基于从输入信号计算的信号模型和相关量来确定环境量，并且其中使用乘法时频掩码提取环境。另一种环境提取方法包括补偿短期互相关系数估计中的偏差。此外，公开了具有用于实现上述方法的各种模块的系统。

4. 发明申请

US20110251704A1 ADAPTIVE ENVIRONMENTAL NOISE COMPENSATION FOR AUDIO PLAYBACK 审中-公开
标题翻译：适用于音频播放的环境噪声补偿
公开(公告)号：US20110251704A1
公开(公告)日：2011-10-13
申请号：US13084298
申请日：2011-04-11
申请人： Martin Walsh , Edward Stein , Jean-Marc Jot , James D. Johnston
发明人： Martin Walsh , Edward Stein , Jean-Marc Jot , James D. Johnston
IPC分类号： G06F17/00
CPC分类号： H04S7/307 , G10L21/0232 , G10L21/0364 , H04R3/04 , H04S7/301
摘要： The present invention counterbalances background noise by applying dynamic equalization. A psychoacoustic model representing the perception of masking effects of background noise relative to a desired foreground soundtrack is used to accurately counterbalance background noise. A microphone samples what the listener is hearing and separates the desired soundtrack from the interfering noise. The signal and noise components are analyzed from a psychoacoustic perspective and the soundtrack is equalized such that the frequencies that were originally masked are unmasked. Subsequently, the listener may hear the soundtrack over the noise. Using this process the EQ can continuously adapt to the background noise level without any interaction from the listener and only when required. When the background noise subsides, the EQ adapts back to its original level and the user does not experience unnecessarily high loudness levels.
摘要翻译：本发明通过应用动态均衡来抵消背景噪声。使用表示背景噪声相对于期望的前景音轨的掩蔽效应的感知的心理声学模型来精确地抵消背景噪声。麦克风采样听众听到的内容，并将所需的音轨与干扰噪声分开。信号和噪声分量从心理声学的角度进行分析，并且音轨被均衡，使得最初被屏蔽的频率未被屏蔽。随后，听众可能会听到声音的声音。使用这个过程，EQ可以连续适应背景噪声水平，而不需要听众的任何交互，只有在需要的时候。当背景噪声消失时，EQ适应于其原始水平，并且用户不会遇到不必要的高响度水平。

5. 发明授权

US07848531B1 Method and apparatus for audio loudness and dynamics matching 有权
标题翻译：用于音频响度和动力学匹配的方法和装置
公开(公告)号：US07848531B1
公开(公告)日：2010-12-07
申请号：US10043591
申请日：2002-01-09
申请人： Earl Vickers , Jean-Marc Jot
发明人： Earl Vickers , Jean-Marc Jot
IPC分类号： H03G3/00
CPC分类号： H03G7/002 , H03G7/007
摘要： The overall loudness of an audio track is calculated by combining a number of weighted loudness measures for segments of the audio track, where the weight applied to each individual loudness measure is a function of the loudness measure. By comparing the original overall loudness measure to a desired overall loudness measure, a gain can be determined that will adjust the loudness level to the desired value. Also disclosed is a dynamic compression method that analyzes the dynamic characteristics of an audio track and determines appropriate compressor parameters. Additionally, the loudness of a post-compressor audio track can be estimated for any given compressor parameters, thus permitting post-compression loudness matching to be done even if the compression is performed in real-time.
摘要翻译：通过组合用于音轨的段的多个加权响度测量来计算音轨的总响度，其中应用于每个单独的响度测量的权重是响度测量的函数。通过将原始的整体响度测量值与期望的整体响度测量值进行比较，可以确定将将响度水平调节到期望值的增益。还公开了一种动态压缩方法，其分析音轨的动态特性并确定适当的压缩器参数。此外，可以针对任何给定的压缩机参数来估计压缩后音频轨道的响度，从而即使实时地进行压缩，也能够进行后压缩响度匹配。

6. 发明申请

US20090110204A1 Distributed Spatial Audio Decoder 有权
标题翻译：分布式空间音频解码器
公开(公告)号：US20090110204A1
公开(公告)日：2009-04-30
申请号：US12350047
申请日：2009-01-07
申请人： Martin WALSH , Jean-Marc Jot , Edward Stein
发明人： Martin WALSH , Jean-Marc Jot , Edward Stein
IPC分类号： H04R5/00
CPC分类号： G10L19/16 , G10L19/008 , H04R2205/024 , H04R2420/07 , H04S5/005
摘要： This invention describes a method for decentralized decoding of a multichannel audio signal by broadcasting the original encoded data and distributing the decoding process between a plurality of receiving units. This allows for the design and manufacture of scalable multichannel audio reproduction systems having an arbitrary number of output channels, composed of a plurality of generic decoder and loudspeaker units each generating fewer output channels. With distributed decoding, a manufacturer can use “off-the-shelf” stereo or mono signal processors, digital-to-analog converters and amplifier components in each generic decoding module, thus reducing manufacturing costs and complexity requirements for each module while offering unlimited scalability in the total number of output channels.
摘要翻译：本发明描述了一种通过广播原始编码数据并在多个接收单元之间分配解码过程来对多声道音频信号进行分散解码的方法。这允许设计和制造具有任意数量的输出通道的可扩展多声道音频再现系统，该多路音频再现系统由多个通用解码器和每个产生较少输出通道的扬声器单元组成。通过分布式解码，制造商可以在每个通用解码模块中使用“现成”的立体声或单声道信号处理器，数模转换器和放大器组件，从而降低每个模块的制造成本和复杂性要求，同时提供无限的可扩展性在输出通道的总数。

7. 发明授权

US07099482B1 Method and apparatus for the simulation of complex audio environments 有权
标题翻译：用于模拟复杂音频环境的方法和装置
公开(公告)号：US07099482B1
公开(公告)日：2006-08-29
申请号：US10095653
申请日：2002-03-08
申请人： Jean-Marc Jot , Samuel C. Dicker
发明人： Jean-Marc Jot , Samuel C. Dicker
IPC分类号： H03G3/00
CPC分类号： H04S1/002 , G10K15/12
摘要： A reverberation processing system simulates a sound scene that includes a plurality of related reverberant environments. The system includes a corresponding plurality of reverberation blocks that are fed by at least one source block. The reverberation blocks may include panning functionality to generate a perceived directional emphasis of the reverberation fields that are simulated by the reverberation blocks. The reverberation blocks may also include an auxiliary output that is used to feed related reverberation blocks, to simulate reverberation coupling between the reverberant environments.
摘要翻译：混响处理系统模拟包括多个相关混响环境的声场。该系统包括由至少一个源块馈送的对应的多个混响块。混响块可以包括平移功能以产生由混响块模拟的混响场的感知方向强调。混响块还可以包括用于馈送相关混响块的辅助输出，以模拟混响环境之间的混响耦合。

8. 发明申请

US20060133628A1 System and method for forming and rendering 3D MIDI messages 有权
标题翻译：用于形成和渲染3D MIDI信息的系统和方法
公开(公告)号：US20060133628A1
公开(公告)日：2006-06-22
申请号：US11293335
申请日：2005-12-01
申请人： Jean-Michel Trivi , Jean-Marc Jot , Thomas Savell , Michael Guzewicz
发明人： Jean-Michel Trivi , Jean-Marc Jot , Thomas Savell , Michael Guzewicz
IPC分类号： H04R5/02 , H04R5/00
CPC分类号： H04S7/30 , G10H1/0066 , H04S2400/01 , H04S2420/01
摘要： MIDI-generated audio streams or other input streams of audio events are perceptually associated with specific locations in 3D space with respect to the listener. A conventional pan parameter is redefined so that it no longer specifies the relative balance between the audio being fed to two fixed speaker locations. Instead, the new MIDI pan parameter extension specifies a virtual position of an audio stream in 3D space. Preferably, the relative position of a single audio stream is set along a predefined arc in 3D space.
摘要翻译： MIDI生成的音频流或音频事件的其他输入流感知地与相对于收听者的3D空间中的特定位置相关联。重新定义常规摇摄参数，使得它不再指定馈送到两个固定扬声器位置的音频之间的相对平衡。相反，新的MIDI平移参数扩展指定了3D空间中音频流的虚拟位置。优选地，单个音频流的相对位置沿着3D空间中的预定弧设置。

9. 发明授权

US06188769B1 Environmental reverberation processor 有权
标题翻译：环境混响处理器
公开(公告)号：US06188769B1
公开(公告)日：2001-02-13
申请号：US09441141
申请日：1999-11-12
申请人： Jean-Marc Jot , Sam Dicker , Luke Dahl
发明人： Jean-Marc Jot , Sam Dicker , Luke Dahl
IPC分类号： H03G300
CPC分类号： H04S7/305 , H04S3/00 , H04S3/002
摘要： A method and apparatus for processing sound sources to simulate environmental effects includes source channel blocks for each source and single reverberation block. The source channel blocks include direct, early reflection, and late reverberation blocks for conditioning the source feeds to include delays, spectral changes, and attenuations depending on the position, orientation and directivity of the sound sources, the position and orientation of the listener, and the position and sound transmission and reflection properties of obstacles and walls in a modeled environment. The outputs of the source channel blocks are combined and provided to single reverberation block generating both the early reflections and the late reverberation for all sound sources.
摘要翻译：用于处理声源以模拟环境影响的方法和装置包括每个源的源通道块和单个混响块。源通道块包括用于调节源馈源的直接，早期反射和后期混响块，以根据声源的位置，取向和方向性，听者的位置和方向，包括延迟，频谱变化和衰减，以及模拟环境中障碍物和墙壁的位置和声音传播和反射特性。源通道块的输出被组合并提供给单个混响块，同时产生所有声源的早期反射和后期混响。

10. 发明申请

US20220386065A2 IMMERSIVE AUDIO PLATFORM 有权
公开(公告)号：US20220386065A2
公开(公告)日：2022-12-01
申请号：US17190326
申请日：2021-03-02
申请人： Jean-Marc JOT , Michael MINNICK , Dmitry PASTOUCHENKO , Michael Aaron SIMON , John Emmitt SCOTT III , Richard St. Clair BAILEY , Shivakumar BALASUBRAMANYAM , Harsharaj AGADI
发明人： Jean-Marc JOT , Michael MINNICK , Dmitry PASTOUCHENKO , Michael Aaron SIMON , John Emmitt SCOTT III , Richard St. Clair BAILEY , Shivakumar BALASUBRAMANYAM , Harsharaj AGADI
IPC分类号： H04S7/00 , G02B27/01
摘要： Disclosed herein are systems and methods for presenting audio content in mixed reality environments. A method may include receiving a first input from an application program; in response to receiving the first input, receiving, via a first service, an encoded audio stream; generating, via the first service, a decoded audio stream based on the encoded audio stream; receiving, via a second service, the decoded audio stream; receiving a second input from one or more sensors of a wearable head device; receiving, via the second service, a third input from the application program, wherein the third input corresponds to a position of one or more virtual speakers; generating, via the second service, a spatialized audio stream based on the decoded audio stream, the second input, and the third input; presenting, via one or more speakers of the wearable head device, the spatialized audio stream.

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