-
公开(公告)号：US20220295207A1
公开(公告)日：2022-09-15
申请号：US17625720
申请日：2020-07-07
发明人： Dirk Jeroen BREEBAART , David Matthew COOPER , Giulio CENGARLE , Brett G. CROCKETT , Rhonda J. WILSON
摘要： A method for generating mastered audio content, the method comprising obtaining an input audio content comprising a number, M1, of audio signals, obtaining rendered presentation of the input audio content, the rendered presentation comprising a number, M2, of audio signals, obtaining a mastered presentation generated by mastering the rendered presentation, comparing the mastered presentation with the rendered presentation to determine one or more indications of differences between the mastered presentation and the rendered presentation, modifying one or more of the audio signals of the input audio content based on the indications of differences to generate the mastered audio content. With this approach, conventional, typically stereo, channel-based mastering tools can be used to provide a mastered version of any input audio content, including object-based immersive audio content.
-
公开(公告)号：US20150365775A1
公开(公告)日：2015-12-17
申请号：US14761906
申请日：2014-01-17
IPC分类号： H04R29/00
CPC分类号： H04R29/001 , H04R29/002 , H04S3/00 , H04S7/00
摘要： In some embodiments, a method for automatic detection of polarity of speakers, e.g., speakers installed in cinema environments. In some embodiments, the method determines relative polarities of a set of speakers (e.g., loudspeakers and/or drivers of a multi-driver loudspeaker) using a set of microphones, including by measuring impulse responses, including an impulse response for each speaker-microphone pair; clustering the speakers into a set of groups, each group including at least two of the speakers which are similar to each other in at least one respect; and for each group, determining and analyzing cross-correlations of pairs of impulse responses (e.g., pairs of processed versions of impulse responses) of speakers in the group to determine relative polarities of the speakers. Other aspects include systems configured (e.g., programmed) to perform any embodiment of the inventive method, and computer readable media (e.g., discs) which store code for implementing any embodiment of the inventive method.
摘要翻译： 在一些实施例中，用于自动检测扬声器（例如安装在电影环境中的扬声器）的极性的方法。 在一些实施例中，该方法使用一组麦克风来确定一组扬声器（例如，多驱动扬声器的扬声器和/或驱动器）的相对极性，包括通过测量脉冲响应，包括每个扬声器麦克风的脉冲响应 对; 将扬声器聚集成一组，每个组包括至少两个在至少一个方面彼此相似的扬声器; 并且对于每个组，确定和分析组中的扬声器的脉冲响应对（例如脉冲响应的处理版本对）的交叉相关性，以确定扬声器的相对极性。 其他方面包括配置（例如，编程）用于执行本发明方法的任何实施例的系统，以及存储用于实现本发明方法的任何实施例的代码的计算机可读介质（例如，盘）。
-
3.发明公开公开(公告)号：US20240022224A1
公开(公告)日：2024-01-18
申请号：US18253850
申请日：2021-11-18
CPC分类号： H03G5/005 , H04R3/04 , G10L25/21 , G10L25/18 , G10L15/1815 , H04R2430/03
摘要： In an embodiment, a method comprises: filtering reference audio content items to separate the reference audio content items into different frequency bands; for each frequency band, extracting a first feature vector from at least a portion of each of the reference audio content items, wherein the first feature vector includes at least one audio characteristic of the reference audio content items; obtaining at least one semantic label from at least a portion of each of the reference audio content items; obtaining a second feature vector consisting of the first feature vectors per frequency band and the at least one semantic label; generating, based on the second feature vector, cluster feature vectors representing centroids of clusters; separating the reference audio content items according to the cluster feature vectors; and computing an average target profile for each cluster based on the reference audio content items in the cluster.
-
公开(公告)号：US20200321019A1
公开(公告)日：2020-10-08
申请号：US16753029
申请日：2018-10-02
IPC分类号： G10L21/0232 , G10L21/0264 , H03G3/30
摘要： Methods, systems, and computer program products of automatic de-essing are disclosed. An automatic de-esser can be used without manually setting parameters and can perform reliable sibilance detection and reduction regardless of absolute signal level, singer gender and other extraneous factors. An audio processing device divides input audio signals into buffers each containing a number of samples, the buffers overlapping one another. The audio processing device transforms each buffer from the time domain into the frequency domain and implements de-essing as a multi-band compressor that only acts on a designated sibilance band. The audio processing device determines an amount of attenuation in the sibilance band based on comparison of energy level in sibilance band of a buffer to broadband energy level in a previous buffer. The amount of attenuation is also determined based on a zero-crossing rate, as well as a slope and onset of a compression curve.
-
公开(公告)号：US20190253801A1
公开(公告)日：2019-08-15
申请号：US16336861
申请日：2017-09-28
发明人： Daniel ARTEAGA , Giulio CENGARLE , David Matthew FISCHER , Antonio MATEOS SOLE , Davide SCAINI , Alan J. SEEFELDT
摘要： Embodiments are described for a method for localizing a set of speakers (106) and microphones (108), having only the times of arrival between each of the speakers and microphones. An autodiscovery process (107) uses an external input to set: a global translation (3 continuous parameters), a global rotation (3 continuous parameters), and discrete symmetries, i.e., an exchange of any axis pairs and/or reversal of any axis. Different time of arrival acquisition techniques may be used, such as ultrasonic sweeps or generic multitrack audio content. The autodiscovery algorithm is based in minimizing a certain cost function, and the process allows for latencies in the recordings, possibly linked to the latencies in the emission.
-
公开(公告)号：US20180139535A1
公开(公告)日：2018-05-17
申请号：US15564421
申请日：2016-04-08
CPC分类号： H04R3/005 , A63B2024/004 , H04R5/027 , H04R2201/401 , H04R2201/405
摘要： Methods and systems for generating an audio mix indicative of action sound captured at an event on a surface (e.g., a sporting event on a field) using a microphone array, where the array includes subsurface microphones (e.g., a large number of sub-surface microphones) positioned under the surface, and optionally also other microphones. In typical embodiments, at least one point of interest (“PI”) on the surface is selected in an automated manner, PI data indicative of a currently selected PI on the surface is generated (e.g., a sequence of PIs on the surface is selected, the PI data is indicative of the sequence of PIs, and a most recently selected PI in the sequence is the currently selected PI), and the audio mix is generated in response to the PI data. Aspects include methods performed by any embodiment of the system, and a system or device configured (e.g., programmed) to perform any embodiment of the method.
-
公开(公告)号：US20240056760A1
公开(公告)日：2024-02-15
申请号：US18258041
申请日：2021-12-16
CPC分类号： H04S7/304 , H04S3/008 , H04S2400/11 , H04S2400/01 , H04S2400/13 , H04S2420/07 , H04S2420/01
摘要： A method of audio processing includes performing spatial analysis on a binaural signal to estimate level differences and phase differences characteristic of a binaural filter of the binaural signal, performing object extraction on the binaural audio signal using the estimated level and phase differences to generate a left/right main component signal and a left/right residual component signal. The system may process the left/right main and left/right residual components differently using different object processing parameters for e.g. repositioning, equalization, compression, upmixing, channel remapping or storage to generate a processed binaural signal that provides an improved listening experience. Repositioning may be based on head tracking sensor data.
-
公开(公告)号：US20210312937A1
公开(公告)日：2021-10-07
申请号：US17259787
申请日：2019-07-11
IPC分类号： G10L21/034 , G10L25/18 , G10L21/028 , G10L25/51
摘要： Various embodiments are disclosed for (possibly simultaneously) applying EQ and DRC to audio signals. In an embodiment, a method comprises: dividing an input audio signal into n frames, where n is a positive integer greater than one; dividing each frame of the input audio signal into Nb frequency bands, where Nb is a positive integer greater than one; for each frame n: computing an input level of the input audio signal in each band f, resulting in a input audio level distribution for the input audio signal; computing a gain for each band f based at least in part on a mapping of one or more properties of the input audio level distribution to a reference N audio level distribution computed from one or more reference audio signals; and applying each computed gain for each band f to each
-
公开(公告)号：US20200184983A1
公开(公告)日：2020-06-11
申请号：US16629432
申请日：2018-07-12
IPC分类号： G10L19/16 , G10L19/008
摘要： Methods, systems, and computer program products that provide streaming capabilities to audio input and output devices are disclosed. An audio processing device connects an upstream device to a downstream device. The upstream device is plugged into an input port of the audio processing device. The audio processing device intercepts a signal from the upstream device to the downstream device. The audio processing device converts the signal to digital data and streams the digital data to a server. The digital data can include metadata, e.g., an input gain. The audio processing device can adjust the input gain in response to instructions from the server. The audio processing device feeds a pass-through copy of the audio signal to an output port. A user can connect the downstream device in a usual signal chain into the output port of the audio processing device. The streaming does not affect the user's workflow.
-
公开(公告)号：US20160212559A1
公开(公告)日：2016-07-21
申请号：US14908094
申请日：2014-06-17
IPC分类号： H04S7/00
CPC分类号： H04S7/30 , H04S2400/03 , H04S2400/11
摘要： A gain contribution of the audio signal for each of the N audio objects to at least one of M speakers may be determined. Determining the gain contribution may involve determining a center of loudness position that is a function of speaker (or cluster) positions and gains assigned to each speaker (or cluster). Determining the gain contribution also may involve determining a minimum value of a cost function. A first term of the cost function may represent a difference between the center of loudness position and an audio object position.
摘要翻译： 可以确定音频信号对N个音频对象中的每一个对M个扬声器中的至少一个的增益贡献。 确定增益贡献可以包括确定作为扬声器（或簇）位置和分配给每个扬声器（或群集）的增益的函数的响度中心位置。 确定增益贡献还可以涉及确定成本函数的最小值。 成本函数的第一项可以表示响度中心与音频对象位置之间的差异。
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.022 秒)
