公开(公告)号：US08737642B2

公开(公告)日：2014-05-27

申请号：US13311649

申请日：2011-12-06

申请人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

发明人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

IPC分类号： H03G5/00

CPC分类号： H04R3/04 ,  H03G5/165 ,  H04R2430/03

摘要： An audio signal processing apparatus and method for extracting components from an input signal, generating additional components, combining components, and level-controlling components. An audio signal processing apparatus may include a harmonic overtone adder and an equalizer. A harmonic overtone adder may include a high-pass filter, a low-pass filter, an harmonic overtone generator, and a combining unit. An equalizer may include a level detector and a gain controller.

摘要翻译： 一种用于从输入信号中提取组件，产生附加组件，组合组件和级别控制组件的音频信号处理设备和方法。 音频信号处理装置可以包括谐波泛音加法器和均衡器。 谐波泛音加法器可以包括高通滤波器，低通滤波器，谐波泛音发生器和组合单元。 均衡器可以包括电平检测器和增益控制器。

公开(公告)号：US20080103763A1

公开(公告)日：2008-05-01

申请号：US11977383

申请日：2007-10-24

申请人： Masaru Shimura ,  Kazunobu Ohkuri ,  Taro Nakagami

发明人： Masaru Shimura ,  Kazunobu Ohkuri ,  Taro Nakagami

IPC分类号： G10L19/00

CPC分类号： H04R3/04 ,  H04R2430/03

摘要： Samples of a component having a frequency less than a predetermined frequency in an input audio signal that is a digital signal having a predetermined sampling frequency are written in a memory. A harmonic-overtone signal having a frequency N times a frequency of the input audio signal is generated by repeating an operation N times, where N is an integer more than one, the operation including reading one sample and thinning out (N-1) samples for every N samples from the memory within each cycle period from a first one-direction zero-crossing point to a second one-direction zero-crossing point subsequent to the first one-direction zero-crossing point, each one-direction zero-crossing point being a point at which a level of the input audio signal changes from negative to positive or a point at which the level of the input audio signal changes from positive to negative.

摘要翻译： 在具有预定采样频率的数字信号的输入音频信号中具有小于预定频率的频率的分量的采样被写入存储器。 通过重复N次，其中N是大于1的整数，产生具有输入音频信号的频率N倍的频率的谐波泛音信号，该操作包括读取一个样本和稀疏（N-1）个样本 对于从第一单向过零点之后的第一单向过零点到第二单向零交叉点的每个周期内的每个N个采样，每个单向零交叉 点是输入音频信号的电平从负变化到正的点或输入音频信号的电平从正变为负的点。

公开(公告)号：US20120140952A1

公开(公告)日：2012-06-07

申请号：US13311649

申请日：2011-12-06

申请人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

发明人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

IPC分类号： H03G5/00

CPC分类号： H04R3/04 ,  H03G5/165 ,  H04R2430/03

摘要： An audio signal processing apparatus and method for extracting components from an input signal, generating additional components, combining components, and level-controlling components. An audio signal processing apparatus may include a harmonic overtone adder and an equalizer. A harmonic overtone adder may include a high-pass filter, a low-pass filter, an harmonic overtone generator, and a combining unit. An equalizer may include a level detector and a gain controller.

摘要翻译： 一种用于从输入信号中提取组件，产生附加组件，组合组件和级别控制组件的音频信号处理设备和方法。 音频信号处理装置可以包括谐波泛音加法器和均衡器。 谐波泛音加法器可以包括高通滤波器，低通滤波器，谐波泛音发生器和组合单元。 均衡器可以包括电平检测器和增益控制器。

公开(公告)号：US08150067B2

公开(公告)日：2012-04-03

申请号：US12075538

申请日：2008-03-12

申请人： Kazunobu Ohkuri ,  Taro Nakagami ,  Masaru Shimura

发明人： Kazunobu Ohkuri ,  Taro Nakagami ,  Masaru Shimura

IPC分类号： H03G5/00

CPC分类号： H04R3/04 ,  H03G5/165 ,  H04R3/08

摘要： If the absolute value of the current sample is greater than or equal to an envelope value at the immediately preceding sample, an envelope value at the current sample is made greater than the envelope value at the immediately preceding sample. If the absolute value of the current sample is smaller than the envelope value at the immediately preceding sample and a count value C does not reach a predetermined number N, the count value C is incremented by one and the envelope value at the current sample is held at the envelope value at the immediately preceding sample. If the absolute value of the current sample is smaller than the envelope value at the immediately preceding sample and the count value C reaches the predetermined number N, the envelope value at the current sample is made smaller than the envelope value at the immediately preceding sample.

摘要翻译： 如果当前样本的绝对值大于或等于紧接在前样本的包络值，则使当前样本的包络值大于紧接在前样本的包络值。 如果当前采样的绝对值小于紧接在前的采样的包络值，并且计数值C未达到预定数量N，则计数值C增加1，并且保持当前采样的包络值 在前一样品的包络值处。 如果当前样本的绝对值小于紧接在前样本的包络值，并且计数值C达到预定数量N，则使当前样本的包络值小于紧接在前样本的包络值。

公开(公告)号：US08094835B2

公开(公告)日：2012-01-10

申请号：US11903568

申请日：2007-09-24

申请人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

发明人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

IPC分类号： H04B15/00

CPC分类号： H03G5/16 ,  H04R3/04 ,  H04R5/04

摘要： A signal processing apparatus includes first and second extracting units extracting frequency components having a first frequency band and a second frequency band, respectively, from an input audio signal, a first-harmonic-component generating unit generating a first-harmonic-component signal including a frequency component whose frequency is N1 times that of the frequency component extracted in the first extracting unit, a second-harmonic-component generating unit generating a second-harmonic-component signal including a frequency component whose frequency is N2 times that of the frequency component extracted in the second extracting unit, and a combining unit combining the input audio signal, and the first- and the second-harmonic-component signals in a predetermined ratio. The first frequency band is higher than the second frequency band. N1 and N2 are positive integers, and N1 is smaller than N2.

摘要翻译： 信号处理装置包括分别从输入音频信号中提取具有第一频带和第二频带的频率分量的第一和第二提取单元，产生包括第一频率分量的第一谐波分量信号的第一谐波分量产生单元 频率分量，其频率是在第一提取单元中提取的频率分量的频率的N1倍;二次谐波分量产生单元，其生成包括频率为提取的频率分量的频率的N2的频率分量的二次谐波分量信号 以及以预定比例组合输入音频信号和第一和第二谐波分量信号的组合单元。 第一频带高于第二频带。 N1和N2是正整数，N1小于N2。

公开(公告)号：US08204239B2

公开(公告)日：2012-06-19

申请号：US11977383

申请日：2007-10-24

申请人： Masaru Shimura ,  Kazunobu Ohkuri ,  Taro Nakagami

发明人： Masaru Shimura ,  Kazunobu Ohkuri ,  Taro Nakagami

IPC分类号： G10L19/00

CPC分类号： H04R3/04 ,  H04R2430/03

摘要： Samples of a component having a frequency less than a predetermined frequency in an input audio signal that is a digital signal having a predetermined sampling frequency are written in a memory. A harmonic-overtone signal having a frequency N times a frequency of the input audio signal is generated by repeating an operation N times, where N is an integer more than one, the operation including reading one sample and thinning out (N−1) samples for every N samples from the memory within each cycle period from a first one-direction zero-crossing point to a second one-direction zero-crossing point subsequent to the first one-direction zero-crossing point, each one-direction zero-crossing point being a point at which a level of the input audio signal changes from negative to positive or a point at which the level of the input audio signal changes from positive to negative.

摘要翻译： 在具有预定采样频率的数字信号的输入音频信号中具有小于预定频率的频率的分量的采样被写入存储器。 通过重复N次，其中N是大于1的整数，产生具有输入音频信号的频率N倍的频率的谐波泛音信号，该操作包括读取一个样本和稀疏（N-1）个样本 对于从第一单向过零点之后的第一单向过零点到第二单向零交叉点的每个周期内的每个N个采样，每个单向零交叉 点是输入音频信号的电平从负变化到正的点或输入音频信号的电平从正变为负的点。

公开(公告)号：US20080170719A1

公开(公告)日：2008-07-17

申请号：US11903568

申请日：2007-09-24

申请人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

发明人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

IPC分类号： H04B15/00

CPC分类号： H03G5/16 ,  H04R3/04 ,  H04R5/04

摘要： A signal processing apparatus includes first and second extracting units extracting frequency components having a first frequency band and a second frequency band, respectively, from an input audio signal, a first-harmonic-component generating unit generating a first-harmonic-component signal including a frequency component whose frequency is N1 times that of the frequency component extracted in the first extracting unit, a second-harmonic-component generating unit generating a second-harmonic-component signal including a frequency component whose frequency is N2 times that of the frequency component extracted in the second extracting unit, and a combining unit combining the input audio signal, and the first- and the second-harmonic-component signals in a predetermined ratio. The first frequency band is higher than the second frequency band. N1 and N2 are positive integers, and N1 is smaller than N2.

摘要翻译： 信号处理装置包括分别从输入音频信号中提取具有第一频带和第二频带的频率分量的第一和第二提取单元，产生包括第一频率分量的第一谐波分量信号的第一谐波分量产生单元 频率分量，其频率是在第一提取单元中提取的频率分量的频率的N1倍;二次谐波分量产生单元，其生成包括频率为提取的频率分量的频率的N2的频率分量的二次谐波分量信号 以及以预定比例组合输入音频信号和第一和第二谐波分量信号的组合单元。 第一频带高于第二频带。 N1和N2是正整数，N1小于N2。

公开(公告)号：US20080130915A1

公开(公告)日：2008-06-05

申请号：US11974702

申请日：2007-10-16

申请人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

发明人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

IPC分类号： H03G9/00

CPC分类号： H03G5/165 ,  H04R3/04 ,  H04R2430/03

摘要： An audio signal processing apparatus includes a high-pass filter for extracting from an audio signal a frequency component higher than f0, n band-pass filters for extracting, from the audio signal, frequency components falling within a frequency range from f0/N to f1/N, n harmonic overtone generators for frequency multiplying each of outputs of the n band-pass filters by N, a first combining unit for combining the generated harmonic overtone components, a level detector for detecting a level of a supplied harmonic overtone component, a gain controller for controlling dynamically the harmonic overtone component supplied from the first combining unit, and a second combining unit for combining the frequency component extracted by the high-pass filter and a harmonic overtone component output from the gain controller, where N is (n being a natural number), f0 is a first predetermined frequency, and f1 is a second predetermined frequency higher than f0.

摘要翻译： 音频信号处理装置包括用于从音频信号提取高于f 0的频率分量的高通滤波器，n个带通滤波器，用于从音频信号中提取在f 0 / N的频率范围内的频率分量 到f 1 / N，n个谐波泛音发生器，用于将n个带通滤波器的每个输出乘以N，用于组合所产生的谐波泛音分量的第一组合单元，用于检测所提供的谐波泛音的电平的电平检测器 分量，用于动态地控制从第一组合单元提供的谐波泛音分量的增益控制器，以及用于组合由高通滤波器提取的频率分量和从增益控制器输出的谐波泛音分量的第二组合单元，其中N是 （n是自然数），f 0是第一预定频率，f 1是比f 0高的第二预定频率。

公开(公告)号：US08000824B2

公开(公告)日：2011-08-16

申请号：US11974702

申请日：2007-10-16

申请人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

发明人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

IPC分类号： G06F17/00

CPC分类号： H03G5/165 ,  H04R3/04 ,  H04R2430/03

摘要： An audio signal processing apparatus includes a high-pass filter for extracting from an audio signal a frequency component higher than f0, n band-pass filters for extracting, from the audio signal, frequency components falling within a frequency range from f0/N to f1/N, n harmonic overtone generators for frequency multiplying each of outputs of the n band-pass filters by N, a first combining unit for combining the generated harmonic overtone components, a level detector for detecting a level of a supplied harmonic overtone component, a gain controller for controlling dynamically the harmonic overtone component supplied from the first combining unit, and a second combining unit for combining the frequency component extracted by the high-pass filter and a harmonic overtone component output from the gain controller, where N is (n being a natural number), f0 is a first predetermined frequency, and f1 is a second predetermined frequency higher than f0.

摘要翻译： 音频信号处理装置包括从音频信号提取高于f0的频率分量的高通滤波器，n个带通滤波器，用于从音频信号中提取从f0 / N到f1的频率分量 N个N次谐波发生器，用于将n个带通滤波器的每个输出乘以N，用于组合所产生的谐波泛音分量的第一组合单元，用于检测所提供的谐波泛音分量的电平的电平检测器， 增益控制器，用于动态地控制从第一组合单元提供的谐波泛音分量;以及第二组合单元，用于组合由高通滤波器提取的频率分量和从增益控制器输出的谐波泛音分量，其中N是（n是 自然数），f0是第一预定频率，f1是比f0高的第二预定频率。

公开(公告)号：US20080292114A1

公开(公告)日：2008-11-27

申请号：US11904451

申请日：2007-09-27

申请人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

发明人： Masaru Shimura ,  Taro Nakagami ,  Kazunobu Ohkuri

IPC分类号： H03G5/00

CPC分类号： H04R3/04 ,  H03G5/165 ,  H04R2430/03

摘要： An audio signal processing apparatus includes a harmonic overtone adder and an equalizer. The harmonic overtone adder includes a high-pass filter for extracting from an audio signal higher than a first predetermined frequency, a filter for extracting a frequency component lower than half a second predetermined frequency, an harmonic overtone generator for generating a frequency-doubled harmonic overtone component from an output from the filter, and a first combining unit for combining the frequency component output from the high-pass filter and the harmonic overtone component output from the harmonic overtone generator. The equalizer includes a level detector for detecting a level of an overtone component contained in an output from the first combining unit, a gain controller for controlling dynamically the level of the harmonic overtone component contained in the output from the first combining unit, and a second combining unit for combining the output from the first combining unit with the harmonic overtone component.

摘要翻译： 音频信号处理装置包括谐波泛音加法器和均衡器。 谐波泛音加法器包括用于从高于第一预定频率的音频信号中提取的高通滤波器，用于提取低于第二预定频率的一半的频率分量的滤波器，用于产生倍频谐波泛音的谐波泛音发生器 来自滤波器的输出的分量，以及用于组合从高通滤波器输出的频率分量和从谐波泛音发生器输出的谐波泛音分量的第一组合单元。 均衡器包括用于检测包含在来自第一组合单元的输出中的泛音分量的电平的电平检测器，用于动态地控制包含在来自第一组合单元的输出中的谐波泛音成分的电平的增益控制器， 组合单元，用于组合来自第一组合单元的输出与谐波泛音分量。