-
公开(公告)号：US06278385B1
公开(公告)日：2001-08-21
申请号：US09495411
申请日：2000-01-31
申请人： Kazunobu Kondo , Kenichi Yamauchi , Eiko Kobayashi
发明人： Kazunobu Kondo , Kenichi Yamauchi , Eiko Kobayashi
IPC分类号： H03M700
CPC分类号： H04N21/8358 , G06T9/008 , H04N19/126 , H04N19/60 , H04N21/23892
摘要： A vector quantizer and a vector quantization method are provided, which do not allow the embedding position of the watermark information to be identified easily, and thus enable unfair use of the vector quantized information to be accurately found out. Waveform extraction is performed on input signal data to output extracted waveform data. Index data are generated based on the output extracted waveform data. As index data to be generated based on predetermined extracted waveform data in which no watermark information is to be embedded, out of the output extracted waveform data, index data is randomly selected, which corresponds to the predetermined extracted waveform data from a plurality of index data which, when decoded, have amounts of errors falling within a predetermined range with respect to the predetermined extracted waveform data before decoding.
摘要翻译： 提供了一种矢量量化器和矢量量化方法，其不允许容易地识别水印信息的嵌入位置，从而使得能够不正确地使用矢量量化信息被精确地找出。 对输入信号数据进行波形提取，输出提取的波形数据。 基于输出提取的波形数据生成索引数据。 作为根据其中不嵌入水印信息的预定提取波形数据生成的索引数据，从输出提取的波形数据中随机选择与多个索引数据中的预定提取的波形数据相对应的索引数据 其在解码时相对于解码之前的预定提取波形数据具有落在预定范围内的误差量。
-
公开(公告)号：US08634275B2
公开(公告)日：2014-01-21
申请号：US12910182
申请日：2010-10-22
IPC分类号： H04B1/06
摘要： In an audio processing device, a target sound emphasizer generates a target sound emphasized component by emphasizing a target sound component contained in a plurality of audio signals generated by a plurality of sound receiving devices. A stereo processor generates a stereo component of a plurality of channels from the plurality of audio signals. A first adjuster adjusts a sound pressure level of the target sound emphasized component according to a first adjustment value, and a second adjuster adjusts a sound pressure level of the stereo component according to a second adjustment value. A variable setter variably sets a zoom value which is changeable between a wide angle side and a telephoto side relative to a target. An adjustment controller controls the first adjustment value according to the zoom value such that the sound pressure level of the target sound emphasized component exponentially decreases as the zoom value changes toward the wide-angle side and controls the second adjustment value according to the zoom value such that the sound pressure level of the stereo component increases as the zoom value changes toward the wide-angle side.
摘要翻译： 在音频处理装置中，目标声音增强器通过强调由多个声音接收装置产生的多个音频信号中包含的目标声音成分来产生目标声音强调分量。 立体声处理器从多个音频信号产生多个声道的立体声分量。 第一调节器根据第一调整值调整目标声音增强分量的声压级，并且第二调节器根据第二调整值调节立体声分量的声压级。 可变设定器可变地设置相对于目标物在广角侧和长焦侧之间可变的变焦值。 调节控制器根据变焦值控制第一调整值，使得目标声音强调成分的声压级随着变焦值向广角侧变化而指数地减小，并且根据变焦值控制第二调整值， 立体声分量的声压级随着变焦值向广角侧变化而增加。
-
公开(公告)号：US09002035B2
公开(公告)日：2015-04-07
申请号：US13367696
申请日：2012-02-07
申请人： Yasuyuki Umeyama , Kazunobu Kondo , Yu Takahashi , Jordi Bonada , Jordi Janer , Ricard Marxer
发明人： Yasuyuki Umeyama , Kazunobu Kondo , Yu Takahashi , Jordi Bonada , Jordi Janer , Ricard Marxer
CPC分类号： G11B20/10527 , G10H2210/305 , G10H2220/116 , G10H2250/235 , G11B2020/10564 , G11B2020/10574 , H03G5/005 , H03G5/165 , H03G5/18 , H04R2430/01 , H04S7/305 , H04S7/307 , H04S7/40 , H04S2400/13 , H04S2420/07
摘要： Signal processing section of a terminal converts acquired audio signals of a plurality of channels into frequency spectra set, calculates sound image positions corresponding to individual frequency components, and displays, on a display screen, the calculated sound image positions results by use of a coordinate system having coordinate axes of the frequency components and sound image positions. User-designated partial region of the coordinate system is set as a designated region and an amplitude-level adjusting amount is set for the designated region, so that the signal processing section adjusts amplitude levels of frequency components included in the frequency spectra and in the designated region, converts the adjusted frequency components into audio signals and outputs the converted audio signals.
摘要翻译： 终端的信号处理部将所获取的多个频道的音频信号变换为频谱集，计算与各个频率成分对应的声像位置，并在显示画面上使用坐标系显示计算出的声像位置的结果 具有频率分量和声像位置的坐标轴。 坐标系的用户指定的部分区域被设置为指定区域，并且为指定区域设置幅度电平调整量，使得信号处理部分调整频谱中包括的频率分量的振幅水平，并且在指定的 将经调整的频率分量转换成音频信号并输出转换的音频信号。
-
公开(公告)号：US20120201385A1
公开(公告)日：2012-08-09
申请号：US13367696
申请日：2012-02-07
申请人： Yasuyuki UMEYAMA , Kazunobu Kondo , Yu Takahashi , Jordi Bonada , Jordi Janer , Ricard Marxer
发明人： Yasuyuki UMEYAMA , Kazunobu Kondo , Yu Takahashi , Jordi Bonada , Jordi Janer , Ricard Marxer
IPC分类号： H04R5/00
CPC分类号： G11B20/10527 , G10H2210/305 , G10H2220/116 , G10H2250/235 , G11B2020/10564 , G11B2020/10574 , H03G5/005 , H03G5/165 , H03G5/18 , H04R2430/01 , H04S7/305 , H04S7/307 , H04S7/40 , H04S2400/13 , H04S2420/07
摘要： Signal processing section of a terminal converts acquired audio signals of a plurality of channels into frequency spectra set, calculates sound image positions corresponding to individual frequency components, and displays, on a display screen, the calculated sound image positions results by use of a coordinate system having coordinate axes of the frequency components and sound image positions. User-designated partial region of the coordinate system is set as a designated region and an amplitude-level adjusting amount is set for the designated region, so that the signal processing section adjusts amplitude levels of frequency components included in the frequency spectra and in the designated region, converts the adjusted frequency components into audio signals and outputs the converted audio signals.
摘要翻译： 终端的信号处理部将所获取的多个频道的音频信号变换为频谱集，计算与各个频率成分对应的声像位置，并在显示画面上使用坐标系显示计算出的声像位置的结果 具有频率分量和声像位置的坐标轴。 坐标系的用户指定的部分区域被设置为指定区域，并且为指定区域设置幅度电平调整量，使得信号处理部分调整频谱中包括的频率分量的振幅水平，并且在指定的 将经调整的频率分量转换成音频信号并输出转换的音频信号。
-
公开(公告)号：US20110211711A1
公开(公告)日：2011-09-01
申请号：US12932473
申请日：2011-02-25
IPC分类号： H04B15/00
CPC分类号： G10L21/02 , H04R2227/001
摘要： In a noise suppression apparatus, an index setter sets an exponent K that is a positive value. A factor setter variably sets a suppression factor according to the exponent K. A noise suppressor generates an audio signal from which a noise component is suppressed through noise suppression process of suppressing a Kth power of an amplitude of the noise component at each frequency thereof in a Kth power of an amplitude of the audio signal at each frequency thereof to a degree determined according to the suppression factor set by the factor setting part. Preferably, the index setter sets the exponent K to a value less than 0.1.
摘要翻译： 在噪声抑制装置中，索引设定器设定作为正值的指数K。 因子设定器根据指数K可变地设定抑制因子。噪声抑制器通过噪声抑制处理生成音频信号，通过噪声抑制处理抑制噪声分量在其频率中的噪声分量的振幅的第K次方 音频信号在其每个频率处的幅度的Kth功率达到由因子设置部分设置的抑制因子确定的程度。 优选地，索引设置器将指数K设置为小于0.1的值。
-
公开(公告)号：US20110170707A1
公开(公告)日：2011-07-14
申请号：US13005138
申请日：2011-01-12
申请人： Makoto YAMADA , Kazunobu Kondo
发明人： Makoto YAMADA , Kazunobu Kondo
IPC分类号： H04B15/00
CPC分类号： H04B15/00 , G10L21/0216
摘要： A noise suppressing device is provided for suppressing noise of a first audio signal to generate a second audio signal. In the noise suppressing device, a noise acquisition unit acquires a plurality of noise components which are different from each other. A noise suppression unit generates each suppression component by suppressing each noise component from the first audio signal, thereby providing a plurality of suppression components different from each other in correspondence to the plurality of the noise components. A signal generation unit generates the second audio signal by summing the plurality of the suppression components that are provided from the noise suppression unit.
摘要翻译： 提供噪声抑制装置，用于抑制第一音频信号的噪声以产生第二音频信号。 在噪声抑制装置中，噪声获取单元获取彼此不同的多个噪声分量。 噪声抑制单元通过从第一音频信号中抑制每个噪声分量来产生每个抑制分量，由此提供与多个噪声分量相对应的彼此不同的多个抑制分量。 信号生成单元通过对从噪声抑制单元提供的多个抑制分量进行求和来生成第二音频信号。
-
公开(公告)号：US20100125352A1
公开(公告)日：2010-05-20
申请号：US12617605
申请日：2009-11-12
申请人： Makoto YAMADA , Kazunobu Kondo
发明人： Makoto YAMADA , Kazunobu Kondo
CPC分类号： G10L21/0272 , G10L2021/02165 , H04R3/005
摘要： A signal processing device processes a plurality of observed signals at a plurality of frequencies. The plurality of the observed signals are produced by a plurality of sound receiving devices which receive a mixture of a plurality of sounds. In the signal processing device, a storage stores observed data of the plurality of the observed signals. The observed data represents a time series of magnitude of each frequency in each of the plurality of the observed signals. An index calculator calculates an index value from the observed data for each of the plurality of the frequencies. The index value indicates significance of learning of a separation matrix using the observed data of each frequency. The separation matrix is used for separation of the plurality of the sounds from each other at each frequency. A frequency selector selects one or more frequency according to the index value of each frequency. A learning processor determines the separation matrix by learning with a given initial separation matrix using the observed data of the selected frequency.
摘要翻译： 信号处理装置以多个频率处理多个观测信号。 多个观察信号由接收多个声音的混合的多个声音接收装置产生。 在信号处理装置中，存储存储多个观测信号的观测数据。 所观察的数据表示多个观测信号中的每一个中的每个频率的时间序列的大小。 索引计算器从针对多个频率中的每一个的观察数据计算索引值。 索引值表示使用每个频率的观察数据学习分离矩阵的重要性。 分离矩阵用于在每个频率处分离多个声音。 频率选择器根据每个频率的索引值选择一个或多个频率。 学习处理器通过使用所选频率的观察数据通过使用给定的初始分离矩阵学习来确定分离矩阵。
-
公开(公告)号：US20100008520A1
公开(公告)日：2010-01-14
申请号：US12499734
申请日：2009-07-08
IPC分类号： H04B15/00
CPC分类号： G10L21/0208 , G10L21/0232
摘要： A noise suppression estimation device calculates a noise index value which varies according to kurtosis of a frequence distribution of magnitude of a sound signal before or after suppression of the noise component, the noise index value indicating a degree of occurrence of musical noise after suppression of the noise component in a frequency domain. For example, the noise suppression estimation device calculates first kurtosis of a frequence distribution of magnitude of the sound signal before suppression of the noise component, calculates second kurtosis of a frequence distribution of magnitude of the sound signal after suppression of the noise component, and calculates the noise index value from the first kurtosis and the second kurtosis.
摘要翻译： 噪声抑制估计装置计算噪声指数值，该噪声指数值根据抑制噪声分量之前或之后的声音信号的频度分布的峰度而变化，噪声指数值表示抑制噪声分量后的音乐噪声的发生程度 频域中的噪声分量。 例如，噪声抑制估计装置计算抑制噪声分量之前的声音信号的频度分布的首次峰度，计算抑制噪声成分后的声音信号的频度分布的次高峰，并计算 第一次峰度的噪声指数值和第二次峰度的峰值。
-
公开(公告)号：US09224406B2
公开(公告)日：2015-12-29
申请号：US13284170
申请日：2011-10-28
申请人： Jordi Bonada , Jordi Janer , Ricard Marxer , Yasuyuki Umeyama , Kazunobu Kondo , Francisco Garcia
发明人： Jordi Bonada , Jordi Janer , Ricard Marxer , Yasuyuki Umeyama , Kazunobu Kondo , Francisco Garcia
CPC分类号： G10L25/90 , G10H2210/066 , G10H2210/091
摘要： Candidate frequencies per unit segment of an audio signal are identified. First processing section identifies an estimated train that is a time series of candidate frequencies, each selected for a different one of the segments, arranged over a plurality of the unit segments and that has a high likelihood of corresponding to a time series of fundamental frequencies of a target component. Second processing section identifies a state train of states, each indicative of one of sound-generating and non-sound-generating states of the target component in a different one of the segments, arranged over the unit segments. Frequency information which designates, as a fundamental frequency of the target component, a candidate frequency corresponding to the unit segment in the estimated train is generated for each unit segment corresponding to the sound-generating state. Frequency information indicative of no sound generation is generated for each unit segment corresponding to the non-sound-generating state.
摘要翻译： 识别音频信号的每单位片段的候选频率。 第一处理部分识别作为候选频率的时间序列的估计列车，每个候选频率被选择用于不同的一个段，排列在多个单位段上，并且具有对应于基本频率的时间序列的高可能性 目标组件。 第二处理部分识别状态列，每个状态列表指示布置在单位段上的不同的段中的目标分量的声音产生和非声音生成状态之一。 针对对应于发声状态的每个单位片段生成作为目标分量的基本频率指定与估计列车中的单位片段对应的候选频率的频率信息。 针对对应于非声音产生状态的每个单位片段产生指示没有声音产生的频率信息。
-
公开(公告)号：US09123348B2
公开(公告)日：2015-09-01
申请号：US12617605
申请日：2009-11-12
申请人： Makoto Yamada , Kazunobu Kondo
发明人： Makoto Yamada , Kazunobu Kondo
IPC分类号： G06F17/00 , G10L21/0272 , H04R3/00 , G10L21/0216
CPC分类号： G10L21/0272 , G10L2021/02165 , H04R3/005
摘要： A signal processing device processes a plurality of observed signals at a plurality of frequencies. The plurality of the observed signals are produced by a plurality of sound receiving devices which receive a mixture of a plurality of sounds. In the signal processing device, a storage stores observed data of the plurality of the observed signals. The observed data represents a time series of magnitude of each frequency in each of the plurality of the observed signals. An index calculator calculates an index value from the observed data for each of the plurality of the frequencies. The index value indicates significance of learning of a separation matrix using the observed data of each frequency. The separation matrix is used for separation of the plurality of the sounds from each other at each frequency. A frequency selector selects one or more frequency according to the index value of each frequency. A learning processor determines the separation matrix by learning with a given initial separation matrix using the observed data of the selected frequency.
摘要翻译： 信号处理装置以多个频率处理多个观测信号。 多个观察信号由接收多个声音的混合的多个声音接收装置产生。 在信号处理装置中，存储存储多个观测信号的观测数据。 所观察的数据表示多个观测信号中的每一个中的每个频率的时间序列的大小。 索引计算器从针对多个频率中的每一个的观察数据计算索引值。 索引值表示使用每个频率的观察数据学习分离矩阵的重要性。 分离矩阵用于在每个频率处分离多个声音。 频率选择器根据每个频率的索引值选择一个或多个频率。 学习处理器通过使用所选频率的观察数据通过使用给定的初始分离矩阵学习来确定分离矩阵。
-
-
-
-
-
-
-
-
-
搜索结果
21 条记录 (耗时 0.019 秒)
