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51. 发明授权

US08379868B2 Spatial audio coding based on universal spatial cues 有权
标题翻译：基于通用空间线索的空间音频编码
公开(公告)号：US08379868B2
公开(公告)日：2013-02-19
申请号：US11750300
申请日：2007-05-17
申请人： Michael Goodwin , Jean-Marc Jot
发明人： Michael Goodwin , Jean-Marc Jot
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , H04S7/30
摘要： The present invention provides a frequency-domain spatial audio coding framework based on the perceived spatial audio scene rather than on the channel content. In one embodiment, time-frequency spatial direction vectors are used as cues to describe the input audio scene.
摘要翻译：本发明提供了一种基于感知空间音频场景而不是频道内容的频域空间音频编码框架。在一个实施例中，时频空间方向向量用作描述输入音频场景的提示。

52. 发明申请

US20120063616A1 DYNAMIC COMPENSATION OF AUDIO SIGNALS FOR IMPROVED PERCEIVED SPECTRAL IMBALANCES 有权
标题翻译：音频信号的动态补偿，用于改进的频谱不平衡
公开(公告)号：US20120063616A1
公开(公告)日：2012-03-15
申请号：US13228272
申请日：2011-09-08
申请人： Martin Walsh , Edward Stein , Jean-Marc Jot
发明人： Martin Walsh , Edward Stein , Jean-Marc Jot
IPC分类号： H03G5/00
CPC分类号： H03G5/025 , H03G5/005 , H03G5/165 , H03G9/005 , H03G9/025
摘要： An input audio signal is equalized to form an output audio signal on the basis of an intended listening sound pressure level, the output capabilities of a particular playback device, and unique hearing characteristics of a listener. An intended listening level is first determined based on the properties of the audio signal and a mastering sound level. The intended listening level is used to determine an optimal sound pressure level for the particular playback device based on its capabilities and any master volume gain. These two levels are used to determine how much louder to make individual frequencies based on data pertaining to human auditory perception, either standardized or directly measured. The audio is further compensated on the basis of hearing loss data, again either standardized or directly measured, after optionally extending the signal bandwidth. The final, compensated audio signal is sent to the playback device for playback.
摘要翻译：输入音频信号被均衡以根据预期的听力声压级，特定播放设备的输出能力和收听者的独特听觉特征来形成输出音频信号。首先根据音频信号的属性和母带声级别来确定预期的听音级别。根据其能力和任何主音量增益，目标聆听电平用于确定特定播放设备的最佳声压级。这两个级别用于确定基于与人类听觉知觉相关的数据（标准化或直接测量）来制作单个频率的响度。在可选地扩展信号带宽之后，基于听力损失数据进一步补偿音频，再次被标准化或直接测量。最后的补偿音频信号被发送到播放设备进行播放。

53. 发明申请

US20120057715A1 SPATIAL AUDIO ENCODING AND REPRODUCTION 有权
标题翻译：空间音频编码和复制
公开(公告)号：US20120057715A1
公开(公告)日：2012-03-08
申请号：US13021922
申请日：2011-02-07
申请人： James D. Johnston , Stephen Roger Hastings , Jean-Marc Jot
发明人： James D. Johnston , Stephen Roger Hastings , Jean-Marc Jot
IPC分类号： H03G3/00 , G10L19/00
CPC分类号： G10K15/08 , G10K15/12 , G10L19/008 , H04S7/30 , H04S2400/15 , H04S2420/03
摘要： A method and apparatus processes multi-channel audio by encoding, transmitting or recording “dry” audio tracks or “stems” in synchronous relationship with time-variable metadata controlled by a content producer and representing a desired degree and quality of diffusion. Audio tracks are compressed and transmitted in connection with synchronized metadata representing diffusion and preferably also mix and delay parameters. The separation of audio stems from diffusion metadata facilitates the customization of playback at the receiver, taking into account the characteristics of local playback environment.
摘要翻译：一种方法和装置通过编码，发送或记录与内容制作者控制的时变元数据同步关系并表示所需的扩散程度和质量的“干”音轨或“干”来处理多声道音频。音频轨道被压缩并且与表示扩散的同步元数据一起发送，并且优选地也是混合和延迟参数。音频分离源于扩散元数据有助于在接收机上定制播放，同时考虑到本地播放环境的特性。

54. 发明授权

US08000485B2 Virtual audio processing for loudspeaker or headphone playback 有权
标题翻译：用于扬声器或耳机播放的虚拟音频处理
公开(公告)号：US08000485B2
公开(公告)日：2011-08-16
申请号：US12762915
申请日：2010-04-19
申请人： Martin Walsh , William Paul Smith , Jean-Marc Jot
发明人： Martin Walsh , William Paul Smith , Jean-Marc Jot
IPC分类号： H04R5/02 , H04R5/00
CPC分类号： H04S3/00 , H04S3/002 , H04S2400/01 , H04S2400/03
摘要： There are provided methods and an apparatus for processing audio signals. According to one aspect of the present invention there is included a method for processing audio signals having the steps of receiving at least one audio signal having at least a center channel signal, a right side channel signal, and a left side channel signal; processing the right and left side channel signals with a first virtualizer processor, thereby creating a right virtualized channel signal and a left virtualized channel signal; processing the center channel signal with a spatial extensor to produce distinct right and left outputs, thereby expanding the center channel with a pseudo-stereo effect; and summing the right and left outputs with the right and left virtualized channel signals to produce at least one modified side channel output.
摘要翻译：提供了用于处理音频信号的方法和装置。根据本发明的一个方面，包括一种用于处理音频信号的方法，该方法具有以下步骤：接收至少一个具有至少一个中心声道信号，右侧声道信号和左侧声道信号的音频信号; 用第一虚拟器处理器处理右侧和左侧信道信号，从而创建一个正确的虚拟信道信号和一个左侧的虚拟信道信号; 用空间延伸器处理中心声道信号，以产生不同的右和左输出，从而以伪立体声效果扩展中心声道; 并将右和左输出与右和左虚拟通道信号相加以产生至少一个修改的侧通道输出。

55. 发明申请

US20110085677A1 ADAPTIVE DYNAMIC RANGE ENHANCEMENT OF AUDIO RECORDINGS 有权
标题翻译：自适应动态范围增强音频录音
公开(公告)号：US20110085677A1
公开(公告)日：2011-04-14
申请号：US12901330
申请日：2010-10-08
申请人： Martin Walsh , Edward Stein , Jean-Marc Jot
发明人： Martin Walsh , Edward Stein , Jean-Marc Jot
IPC分类号： H04B15/00
CPC分类号： H03G9/18 , H03G9/005 , H03G9/025
摘要： There are provided methods and an apparatus for conditioning an audio signal. According to one aspect of the present invention there is included a method for conditioning an audio signal having the steps of: receiving at least one audio signal, each audio signal having at least one channel, each channel being segmented into a plurality of frames over a series of time; calculating at least one measure of dynamic excursion of the audio signal for a plurality of successive segments of time; filtering the audio signal into a plurality of subbands, each frame being represented by at least one subband; deriving a dynamic gain factor from the successive segments of time; analyzing at least one subband of the frame to determine if a transient exists in the frame; and applying the dynamic gain factor to each frame having a transient.
摘要翻译：提供了用于调节音频信号的方法和装置。根据本发明的一个方面，包括一种用于调节音频信号的方法，该方法具有以下步骤：接收至少一个音频信号，每个音频信号具有至少一个信道，每个信道被分割成多个帧一系列时间; 计算多个连续的时间段的音频信号的动态偏移的至少一个度量; 将音频信号过滤成多个子带，每个帧由至少一个子带表示; 从连续的时间段导出动态增益因子; 分析帧的至少一个子带以确定帧中是否存在瞬态; 以及将动态增益因子应用于具有瞬态的每个帧。

56. 发明申请

US20090252356A1 SPATIAL AUDIO ANALYSIS AND SYNTHESIS FOR BINAURAL REPRODUCTION AND FORMAT CONVERSION 有权
标题翻译：空间音频分析和合成生物复制和格式转换
公开(公告)号：US20090252356A1
公开(公告)日：2009-10-08
申请号：US12243963
申请日：2008-10-01
申请人： Michael M. GOODWIN , Jean-Marc Jot , Mark Dolson
发明人： Michael M. GOODWIN , Jean-Marc Jot , Mark Dolson
IPC分类号： H04R5/02
CPC分类号： H04S1/002 , G10L19/008 , G10L19/173
摘要： A frequency-domain method for format conversion or reproduction of 2-channel or multi-channel audio signals such as recordings is described. The reproduction is based on spatial analysis of directional cues in the input audio signal and conversion of these cues into audio output signal cues for two or more channels in the frequency domain.
摘要翻译：描述用于格式转换或再现诸如记录的2声道或多声道音频信号的频域方法。再现是基于输入音频信号中的方向提示的空间分析，并且将这些提示转换成频域中两个或更多个频道的音频输出信号提示。

57. 发明申请

US20080033730A1 ALIAS-FREE SUBBAND PROCESSING 有权
标题翻译：无ALIAS SUBBAND加工
公开(公告)号：US20080033730A1
公开(公告)日：2008-02-07
申请号：US11834608
申请日：2007-08-06
申请人： Jean-Marc JOT , Martin WALSH , Jean LAROCHE , Mark PHILLIPS , Michael CHORN , Micheal GOODWIN
发明人： Jean-Marc JOT , Martin WALSH , Jean LAROCHE , Mark PHILLIPS , Michael CHORN , Micheal GOODWIN
IPC分类号： G10L21/00
CPC分类号： G10L19/0204 , G10L19/26 , H03H17/0266 , H04S2420/01
摘要： A digital signal is processed by splitting it into at least two frequency subbands and the two subband signals are downsampled. A filter is applied in at least one of the subband signals. At least one of the phase and magnitude of the subband filtered signals is matched in the transition frequency band between the two subbands.
摘要翻译：通过将数字信号分成至少两个频率子带并对两个子带信号进行下采样来处理数字信号。在至少一个子带信号中应用滤波器。子带滤波信号的相位和幅度中的至少一个在两个子带之间的转换频带中匹配。

58. 发明授权

US07149314B2 Reverberation processor based on absorbent all-pass filters 有权
公开(公告)号：US07149314B2
公开(公告)日：2006-12-12
申请号：US09731322
申请日：2000-12-04
申请人： Luke Dahl , Jean-Marc Jot
发明人： Luke Dahl , Jean-Marc Jot
IPC分类号： H03G3/00 , G10H1/02
CPC分类号： G10K15/12
摘要： A reverberation processor includes a chain of absorbent all-pass filters and an absorbent delay line. The decay time can be precisely controlled by controlling the magnitude of the attenuation in the absorbent delay lines. Further, each absorbent delay line includes a low-pass filter for controlling the decay time at a particular high frequency.

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