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公开(公告)号：US20090157204A1
公开(公告)日：2009-06-18
申请号：US12001851
申请日：2007-12-13
申请人： Brandon Smith , Jeffrey K. Thompson , Aaron Warner
发明人： Brandon Smith , Jeffrey K. Thompson , Aaron Warner
IPC分类号： G06F17/00
CPC分类号： G11B20/00086 , G10L19/018 , G11B20/00181 , G11B20/00891 , G11B2020/00028 , G11B2020/00057
摘要： A system for identifying audio data is provided. The system includes a transform system receiving left channel audio data and right channel audio data and generating a plurality of frequency bins of left channel magnitude data, left channel phase data, right channel magnitude data and right channel phase data. A watermarking system receives watermarking data and modifies predetermined frequency bins of the left channel phase data and the right channel phase data to encode the watermarking data. A magnitude system receives the left channel magnitude data and the right channel magnitude data and increases the left channel magnitude data and the right channel magnitude data for one or more of the predetermined frequency bins to a threshold level if the left channel magnitude data and the right channel magnitude data for the corresponding frequency bin is less than the threshold level.
摘要翻译： 提供用于识别音频数据的系统。 该系统包括接收左声道音频数据和右声道音频数据并产生左声道幅度数据，左声道相位数据，右声道幅度数据和右声道相位数据的多个频率仓的变换系统。 水印系统接收水印数据并修改左声道相位数据和右声道相位数据的预定频率仓以对水印数据进行编码。 幅度系统接收左声道幅度数据和右声道幅度数据，并将左声道幅度数据和左声道幅度数据和右声道幅度数据和右声道幅度数据和右声道幅度数据和右声道幅度数据以及用于一个或多个预定频率仓的右声道幅度数据增加到阈值电平 相应频率仓的通道幅度数据小于阈值电平。
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公开(公告)号：US07853022B2
公开(公告)日：2010-12-14
申请号：US11262029
申请日：2005-10-28
CPC分类号： H04S3/006
摘要： An audio spatial environment engine for flexible and scalable up-mixing from an M channel audio system to an N channel audio system, where M and N are integers and N is greater than M, is provided. The input M channel audio is provided to an analysis filter bank which converts the time domain signals into frequency domain signals. Relevant inter-channel spatial cues are extracted from the frequency domain signals on a sub-band basis and are used as parameters to generate adaptive N channel filters which control the spatial placement of a frequency band element in the up-mixed sound field. The N channel filters are smoothed across both time and frequency to limit filter variability which could cause annoying fluctuation effects. The smoothed N channel filters are then applied to adaptive combinations of the frequency domain input signals and are provided to a synthesis filter bank which generates the N channel time domain output signals.
摘要翻译： 提供了一种音频空间环境引擎，用于从M通道音频系统到N通道音频系统的灵活和可扩展的上混合，其中M和N是整数，N大于M。 输入M声道音频被提供给分析滤波器组，其将时域信号转换成频域信号。 相关的信道间空间提示是以子带为基础从频域信号中提取的，并被用作生成自适应N信道滤波器的参数，该自适应N信道滤波器控制上混频声场中的频带元素的空间位置。 N通道滤波器在时间和频率上均匀平滑，以限制滤波器变化，这可能导致烦人的波动效应。 然后将经平滑的N沟道滤波器应用于频域输入信号的自适应组合，并被提供给产生N个信道时域输出信号的合成滤波器组。
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公开(公告)号：US07929708B2
公开(公告)日：2011-04-19
申请号：US10975841
申请日：2004-10-28
申请人： Robert Reams , Jeffrey K. Thompson , Aaron Warner
发明人： Robert Reams , Jeffrey K. Thompson , Aaron Warner
CPC分类号： H04S3/00 , H04S2400/01
摘要： An audio spatial environment engine for converting from an N channel audio system to an M channel audio system, where N is an integer greater than M, is provided. The audio spatial environment engine includes one or more correlators receiving two of the N channels of audio data and eliminating delays between the channels that are irrelevant to an average human listener. One or more Hilbert transform systems each perform a Hilbert transform on one or more of the correlated channels of audio data. One or more summers receive at least one of the correlated channels of audio data and at least one of the Hilbert transformed correlated channels of audio data and generate one of the M channels of audio data.
摘要翻译： 提供了一种用于从N声道音频系统转换成M通道音频系统的音频空间环境引擎，其中N是大于M的整数。 音频空间环境引擎包括一个或多个相关器，其接收N个音频数据中的两个，并消除与平均人类听者无关的频道之间的延迟。 一个或多个希尔伯特变换系统在音频数据的一个或多个相关通道上执行希尔伯特变换。 一个或多个夏季接收音频数据的相关信道和至少一个音频数据的希尔伯特变换的相关信道中的至少一个，并生成M个音频数据之一。
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公开(公告)号：US20090060204A1
公开(公告)日：2009-03-05
申请号：US12245398
申请日：2008-10-03
申请人： Robert Reams , Jeffrey K. Thompson , Aaron Warner
发明人： Robert Reams , Jeffrey K. Thompson , Aaron Warner
CPC分类号： H04S3/00 , H04S2400/01
摘要： An audio spatial environment engine for converting from an N channel audio system to an M channel audio system, where N is an integer greater than M, is provided. The audio spatial environment engine includes one or more correlators receiving two or more of the N channels of audio data and eliminating delays between the channels that are irrelevant to an average human listener. One or more Hilbert transform systems each perform a Hilbert transform on one or more of the correlated channels of audio data. One or more summers receive at least one of the correlated channels of audio data and at least one of the Hilbert transformed correlated channels of audio data and generate one of the M channels of audio data.
摘要翻译： 提供了一种用于从N声道音频系统转换成M通道音频系统的音频空间环境引擎，其中N是大于M的整数。 音频空间环境引擎包括一个或多个相关器，其接收N个音频数据中的两个或更多个信道，并消除与平均人类听者无关的频道之间的延迟。 一个或多个希尔伯特变换系统在音频数据的一个或多个相关通道上执行希尔伯特变换。 一个或多个夏季接收音频数据的相关信道和至少一个音频数据的希尔伯特变换的相关信道中的至少一个，并生成M个音频数据之一。
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公开(公告)号：US20170127212A1
公开(公告)日：2017-05-04
申请号：US15336382
申请日：2016-10-27
申请人： Jean-Marc Jot , Brandon Smith , Jeffrey K. Thompson , Zoran Fejzo
发明人： Jean-Marc Jot , Brandon Smith , Jeffrey K. Thompson , Zoran Fejzo
IPC分类号： H04S7/00 , G10L19/20 , G10L21/0324 , G10L19/008
CPC分类号： H04S7/307 , G10L19/008 , G10L19/167 , G10L19/20 , G10L21/0324 , H03G3/005 , H03G3/3005 , H03G3/3089 , H03G7/002 , H03G7/007 , H04S3/008 , H04S7/308 , H04S2400/13 , H04S2420/03
摘要： Systems, devices, and methods are described herein for adjusting a relationship between dialog and non-dialog signals in an audio program. In an example, information about a long-term dialog balance for an audio program can be received. The long-term loudness dialog balance can indicate a dialog-to-non-dialog loudness relationship of the audio program. A dialog loudness preference can be received, such as from a user, from a database, or from another source. A desired long-term gain or attenuation can be determined according to a difference between the received long-term dialog balance for the audio program and the received dialog balance preference. The long-term gain or attenuation can be applied to at least one of the dialog signal and the non-dialog signal of the audio program to render an audio program that is enhanced according to the loudness preference.
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公开(公告)号：US20100011391A1
公开(公告)日：2010-01-14
申请号：US12218313
申请日：2008-07-14
CPC分类号： H04N7/17318 , H04N21/25816 , H04N21/26258 , H04N21/42684 , H04N21/6334
摘要： A system for providing decoder-specific content is provided. The system includes a receiver list system receiving a receiver identifier and transmitting authentication data to a receiver. A receiver authentication system receives the authentication data and transmits content delivery data to a content server, such as data that authorizes the content server to provide content to the receiver. A receiver update system transmits update data to the receiver, such as a list of available channels of content.
摘要翻译： 提供了一种用于提供特定于解码器的内容的系统。 系统包括接收器列表系统，接收接收机标识符并将接收机发送认证数据。 接收机认证系统接收认证数据，并将内容传送数据发送到内容服务器，例如授权内容服务器向接收者提供内容的数据。 接收机更新系统向接收机发送更新数据，例如可用的内容通道的列表。
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