公开(公告)号：US09361900B2

公开(公告)日：2016-06-07

申请号：US14237990

申请日：2012-08-14

申请人： Yuki Yamamoto ,  Toru Chinen

发明人： Yuki Yamamoto ,  Toru Chinen

IPC分类号： G10L19/00 ,  G10L21/00 ,  G10L19/26 ,  G10L21/038

CPC分类号： G10L19/265 ,  G10L21/038

摘要： The present technology relates to an encoding device and method, a decoding device and method, and a program, which enable improvement of audio quality.A QMF sub-band power calculation unit calculates power of a QMF sub-band signal of a high frequency QMF sub-band among a plurality of the QMF sub-bands constituting an input signal. A high frequency sub-band power calculation unit carries out an operation to weight more a QMF sub-band power having larger power as for a sub-band including a number of the high frequency QMF sub-bands to calculate high frequency sub-band power of the sub-band. The multiplexing circuit multiplexes high frequency encoded data and low frequency encoded data for outputting. The high frequency encoded data is selected based on the high frequency sub-band power and obtained by encoding information used for obtaining a high frequency component of the input signal by estimating, and the low frequency encoded data is obtained by encoding low frequency components of the input signal. The present technology can be applied to encoding devices.

摘要翻译： 本技术涉及能够提高音频质量的编码装置和方法，解码装置和方法以及程序。 QMF子带功率计算单元计算构成输入信号的多个QMF子带中的高频QMF子带的QMF子带信号的功率。 高频子带功率计算单元执行对包含多个高频QMF子带的子带的功率较大的QMF子带功率进行加权的运算，以计算高频子带功率 的子带。 复用电路复用高频编码数据和低频编码数据进行输出。 基于高频子带功率选择高频编码数据，并通过估计来获得输入信号的高频分量的编码信息，低频编码数据是通过编码低频编码数据 输入信号。 本技术可以应用于编码设备。

公开(公告)号：US09053709B2

公开(公告)日：2015-06-09

申请号：US13147858

申请日：2010-12-12

申请人： Toru Chinen ,  Yuki Yamamoto ,  Mitsuyuki Hatanaka

发明人： Toru Chinen ,  Yuki Yamamoto ,  Mitsuyuki Hatanaka

IPC分类号： G06F17/00 ,  G10L25/00

CPC分类号： G10L25/00 ,  G06F2200/1636

摘要： The present invention relates to a control device, a control method, and a program capable of improving operability with a simpler configuration.A reproducing apparatus 11 which reproduces sound such as music includes earphones 21 which are worn by a user on the ears and a body 22. A sound pickup unit 31 collects sounds around the reproducing apparatus 11, and a determination unit 34 extracts future amounts from the collected sound and determines whether the sound corresponds to an operation sound generated when the sound pickup unit 31 is directly tapped by the user. A controller 35 executes a process in accordance with a result of the determination performed by the determination unit 34. For example, when a sound pickup unit 31-1 is tapped once within a predetermined period of time, the controller 35 instructs a reproduction controller 39 to stop reproduction of music. In the reproducing apparatus 11, various function control processes may be performed by a simple operation of tapping the sound pickup unit 31 and buttons are not required. The present invention is applicable to a music player.

摘要翻译： 本发明涉及一种能够以更简单的配置改善可操作性的控制装置，控制方法和程序。 重现声音的再现装置11包括用户在耳朵上佩戴的耳机21和主体22.声音拾取单元31在再现设备11周围收集声音，并且确定单元34从 收集的声音，并且确定声音是否对应于当用户直接敲击声音拾取单元31时产生的操作声音。 控制器35根据由确定单元34执行的确定结果执行处理。例如，当在预定时间段内拾取声音拾取单元31-1一次时，控制器35指示再现控制器39 停止再现音乐。 在再现装置11中，可以通过敲击声音拾取单元31的简单操作来执行各种功能控制处理，并且不需要按钮。 本发明可应用于音乐播放器。

公开(公告)号：US08903098B2

公开(公告)日：2014-12-02

申请号：US13505443

申请日：2011-09-06

申请人： Minoru Tsuji ,  Toru Chinen

发明人： Minoru Tsuji ,  Toru Chinen

IPC分类号： H03G1/00 ,  H03G7/00

CPC分类号： H03G1/0005 ,  H03G1/00 ,  H03G7/002 ,  H03G7/007 ,  H04R2430/01

摘要： The present invention relates to a signal processing apparatus and method, a program, and a data recording medium configured such that the playback level of an audio signal can be easily and effectively enhanced without requiring prior analysis.An analyzer 21 generates mapping control information in the form of the root mean square of samples in a given segment of a supplied audio signal. A mapping processor 22 takes a nonlinear function determined by the mapping control information taken as a mapping function, and conducts amplitude conversion on a supplied audio signal using the mapping function. In this way, by conducting amplitude conversion of an audio signal using a nonlinear function that changes according to the characteristics in respective segments of an audio signal, the playback level of an audio signal can be easily and effectively enhanced without requiring prior analysis. The present invention may be applied to portable playback apparatus.

摘要翻译： 本发明涉及一种信号处理装置和方法，程序和数据记录介质，其被配置为使得可以容易且有效地增强音频信号的重放级别，而无需事先分析。 分析器21以所提供的音频信号的给定段中的采样均方根的形式产生映射控制信息。 映射处理器22获取由作为映射函数的映射控制信息确定的非线性函数，并且使用映射函数对所提供的音频信号进行幅度转换。 以这种方式，通过使用根据音频信号的各个段中的特征而改变的非线性函数对音频信号进行幅度转换，可以容易且有效地增强音频信号的重放级别，而无需事先分析。 本发明可以应用于便携式播放装置。

公开(公告)号：US20140205111A1

公开(公告)日：2014-07-24

申请号：US14239797

申请日：2012-09-03

申请人： Mitsuyuki Hatanaka ,  Toru Chinen

发明人： Mitsuyuki Hatanaka ,  Toru Chinen

IPC分类号： H03G9/14 ,  H03G5/16

CPC分类号： H03G9/14 ,  H03G3/001 ,  H03G5/025 ,  H03G5/04 ,  H03G5/165 ,  H04R29/00

摘要： The present technique relates to a sound processing apparatus, a method, and a program capable of alleviating degradation of the quality of sound in a case where the gain of a sound signal is amplified.When equalizer processing for adjusting the gain of each frequency band of an input signal on the basis of a gain setting value is performed, an input signal is attenuated by an input attenuation amount derived from the gain setting value, and the equalizer processing is performed on the input signal attenuated. The amount of amplification of the gain of the input signal in the equalizer processing is estimated on the basis of the gain setting value and a weight coefficient of each frequency band derived from a generally-available music signal prepared in advance, and a difference of the estimation value and the input attenuation amount is calculated as a gain correction amount. Further, nonlinear amplification processing is performed on the input signal so as to actually amplify the input signal, which has been subjected to the equalizer processing, by a gain correction amount, and an output signal is obtained. The present technique can be applied to a sound processing apparatus.

摘要翻译： 本技术涉及在扩大声音信号的增益的情况下能够减轻声音质量劣化的声音处理装置，方法和程序。 当执行用于根据增益设定值调整输入信号的每个频带的增益的均衡器处理时，输入信号被从增益设定值导出的输入衰减量衰减，并且进行均衡器处理 输入信号衰减。 基于从预先准备的通常可用的音乐信号导出的每个频带的增益设定值和权重系数来估计均衡器处理中的输入信号的增益的放大量，以及 估计值和输入衰减量被计算为增益校正量。 此外，对输入信号进行非线性放大处理，以便实际上将经过均衡器处理的输入信号放大增益校正量，并获得输出信号。 本技术可以应用于声音处理装置。

公开(公告)号：US20140200900A1

公开(公告)日：2014-07-17

申请号：US14237990

申请日：2012-08-14

申请人： Yuki Yamamoto ,  Toru Chinen

发明人： Yuki Yamamoto ,  Toru Chinen

IPC分类号： G10L19/26

CPC分类号： G10L19/265 ,  G10L21/038

摘要： The present technology relates to an encoding device and method, a decoding device and method, and a program, which enable improvement of audio quality.A QMF sub-band power calculation unit calculates power of a QMF sub-band signal of a high frequency QMF sub-band among a plurality of the QMF sub-bands constituting an input signal. A high frequency sub-band power calculation unit carries out an operation to weight more a QMF sub-band power having larger power as for a sub-band including a number of the high frequency QMF sub-bands to calculate high frequency sub-band power of the sub-band. The multiplexing circuit multiplexes high frequency encoded data and low frequency encoded data for outputting. The high frequency encoded data is selected based on the high frequency sub-band power and obtained by encoding information used for obtaining a high frequency component of the input signal by estimating, and the low frequency encoded data is obtained by encoding low frequency components of the input signal. The present technology can be applied to encoding devices.

摘要翻译： 本技术涉及能够提高音频质量的编码装置和方法，解码装置和方法以及程序。 QMF子带功率计算单元计算构成输入信号的多个QMF子带中的高频QMF子带的QMF子带信号的功率。 高频子带功率计算单元执行对包含多个高频QMF子带的子带的功率较大的QMF子带功率进行加权的运算，以计算高频子带功率 的子带。 复用电路复用高频编码数据和低频编码数据进行输出。 基于高频子带功率选择高频编码数据，并通过估计来获得输入信号的高频分量的编码信息，低频编码数据是通过编码低频编码数据 输入信号。 本技术可以应用于编码设备。

公开(公告)号：US20140200899A1

公开(公告)日：2014-07-17

申请号：US14236350

申请日：2012-08-14

申请人： Yuki Yamamoto ,  Toru Chinen

发明人： Yuki Yamamoto ,  Toru Chinen

IPC分类号： G10L19/26

CPC分类号： G10L19/265 ,  G10L19/0204 ,  G10L19/022 ,  G10L21/038 ,  G10L25/21

摘要： The present technology relates to an encoding device and an encoding method, a decoding device and a decoding method, and a program, configured to obtain a high quality audio with less encoding amount. A number-of-sections determining feature amount calculating circuit calculates a number-of-sections determining feature amount for determining the number of divisions to divide a process target section into continuous frame sections each including a frame for which the same estimation coefficient is selected, based on sub-band signals of a plurality of sub-bands constituting an input signal. A quasi-high frequency sub-band power difference calculating circuit determines the number of continuous frame sections in the process target section based on the number-of-sections determining feature amount, selects an estimation coefficient for obtaining a high frequency component of the input signal by estimation for each continuous frame section, and generates data including a coefficient index for obtaining the estimation coefficient. A high frequency encoding circuit encodes the obtained data, and generates high frequency encoded data. The present technology can be applied to an encoding device.

摘要翻译： 本技术涉及编码装置和编码方法，解码装置和解码方法以及程序，被配置为获得具有较少编码量的高质量音频。 多个部分确定特征量计算电路计算用于确定划分次数的部分数量确定特征量，以将处理目标部分划分成连续帧部分，每个连续帧部分包括选择相同估计系数的帧， 基于构成输入信号的多个子带的子带信号。 准高频子带功率差计算电路基于片数确定特征量确定处理目标部分中的连续帧部分的数量，选择用于获得输入信号的高频分量的估计系数 通过对每个连续帧部分的估计，并且生成包括用于获得估计系数的系数索引的数据。 高频编码电路对获得的数据进行编码，并生成高频编码数据。 本技术可以应用于编码装置。

公开(公告)号：US20130275142A1

公开(公告)日：2013-10-17

申请号：US13978175

申请日：2012-01-06

申请人： Mitsuyuki Hatanaka ,  Toru Chinen

发明人： Mitsuyuki Hatanaka ,  Toru Chinen

IPC分类号： G10L19/008

CPC分类号： G10L19/0204 ,  G10L19/008 ,  G10L19/0208 ,  G10L19/028 ,  G10L19/093 ,  G10L21/038 ,  H03M7/40

摘要： The present technology relates to a signal processing device, method, and program that may obtain audio at a higher audio quality when decoding an audio signal.An envelope information generating unit 24 generates envelope information representing an envelope form of high frequency components of an audio signal to be encoded. A sine wave information generating unit 26 extracts a sine wave signal from the high frequency components of the audio signal, and generates a sine wave information representing an emergence start position of the sine wave signal. An encoding stream generating unit 27 multiplexes the envelope information, the sine wave information, and low frequency components of the audio signal that have been encoded, and outputs an encoding stream obtained as the result. As a result, the high frequency components included in the sine wave signal may be predicted at a higher accuracy from the envelope information and the sine wave information at the receiving side of the encoding stream. The present invention may be applied to a signal processing device.

摘要翻译： 本技术涉及在解码音频信号时可以获得更高音频质量的音频的信号处理设备，方法和程序。 包络信息生成单元24生成表示要编码的音频信号的高频分量的包络形式的包络信息。 正弦波信息生成单元26从音频信号的高频分量中提取正弦波信号，并产生表示正弦波信号的出现开始位置的正弦波信息。 编码流生成单元27对已经被编码的音频信号的包络信息，正弦波信息和低频分量进行复用，并输出作为结果获得的编码流。 结果，可以从编码流的接收侧的包络信息和正弦波信息以更高的精度预测包括在正弦波信号中的高频分量。 本发明可以应用于信号处理装置。

公开(公告)号：US20130094669A1

公开(公告)日：2013-04-18

申请号：US13602912

申请日：2012-09-04

申请人： Akifumi Kono ,  Toru Chinen ,  Minoru Tsuji

发明人： Akifumi Kono ,  Toru Chinen ,  Minoru Tsuji

IPC分类号： H03G3/20

CPC分类号： G10L25/48

摘要： An audio signal processing apparatus which includes an input analysis unit which analyses the characteristics of an input signal and generates an input sound feature value; an environment analysis unit which analyses the characteristics of the environmental sound and generates an environmental sound feature value; a mapping control information generation unit which generates mapping control information as control information of amplitude conversion processing to the input signal by application of the input sound feature value and the environmental sound feature value; and a mapping process unit which performs amplitude conversion on the input signal based on a linear or non-linear mapping function determined according to the mapping control information and generates an output signal.

摘要翻译： 一种音频信号处理装置，包括：输入分析单元，分析输入信号的特性并产生输入声音特征值; 环境分析单元，其分析环境声音的特性并产生环境声音特征值; 映射控制信息生成单元，其通过应用输入声音特征值和环境声音特征值，生成作为对输入信号的振幅转换处理的控制信息的映射控制信息; 以及映射处理单元，其基于根据映射控制信息确定的线性或非线性映射函数对所述输入信号执行振幅转换，并生成输出信号。

公开(公告)号：US5812982A

公开(公告)日：1998-09-22

申请号：US697728

申请日：1996-08-29

申请人： Toru Chinen

发明人： Toru Chinen

IPC分类号： G10L11/00 ,  G10L19/00 ,  G10L19/02 ,  H03M7/30 ,  H04B1/66 ,  G10L9/14 ,  G10L9/16

CPC分类号： H04B1/665 ,  G10L19/0212 ,  G10L19/0204 ,  G10L25/27

摘要： Digital data divided into blocks each having a predetermined number of samples is transformed into data on a frequency axis for each block to generate coefficient data for each frequency. Coefficient data of a predetermined number of blocks are stored in a buffer. From the buffer, coefficient data are inputted to a floating-point transforming circuit for each one block. The coefficient data are divided into a plurality of sub-bands, each sub-band including one or a plurality of coefficient data. The coefficient data are floating-point transformed for each sub-band and transformed into one sub-band common characteristic data which is common to the coefficient data included in each sub-band and mantissa data of the number equal to the number of coefficient data included in each sub-band. The sub-band common characteristic data and the mantissa data are stored in a memory. Sub-band common characteristic data of a predetermined number of blocks are read from the memory for each sub-band. One block-common characteristic data which is common to the read sub-band common characteristic data is generated. Coefficient data of a predetermined number of blocks are read from the memory for each sub-band. The read coefficient data is divided by an exponent expressed by the block-common characteristic data to generate new mantissa data.

摘要翻译： 被划分为具有预定数量样本的块的数字数据被变换为每个块的频率轴上的数据，以生成每个频率的系数数据。 预定数量的块的系数数据被存储在缓冲器中。 从缓冲器中，将系数数据输入到每个块的浮点变换电路。 系数数据被分成多个子带，每个子带包括一个或多个系数数据。 系数数据对于每个子带进行浮点变换，并变换为包括在每个子带中的系数数据共同的一个子带公共特性数据，该数字的尾数数据等于包括的系数数据数 在每个子带。 子带共同特性数据和尾数数据存储在存储器中。 对于每个子带，从存储器读取预定数量的块的子带公共特征数据。 产生读取的子带共同特性数据共同的一个块共同特性数据。 对于每个子带，从存储器读取预定数量的块的系数数据。 读取系数数据由块共用特征数据表示的指数除以生成新的尾数数据。