公开(公告)号：US07112736B2

公开(公告)日：2006-09-26

申请号：US10719872

申请日：2003-11-21

申请人： Atsushi Hoshiai ,  Kenji Sato

发明人： Atsushi Hoshiai ,  Kenji Sato

IPC分类号： G10H7/00

CPC分类号： G10H1/40 ,  G10H1/0041 ,  G10H2210/381 ,  G10H2210/385

摘要： An electronic musical instrument enables a phrase that is stored as audio waveform data to be played back at an arbitrary tempo. The instrument includes an operator that allows the performer to change the readout position of the waveform data manually, enabling the performer to increase, decrease or reverse the speed of waveform data playback temporarily. Upon ceasing use of the operator, the playback of the waveform data returns to synchronization with the previously set tempo at a readout position that would be the current readout position had the operator not been used by the performer.

摘要翻译： 电子乐器能够以任意节奏播放作为音频波形数据存储的短语。 该仪器包括一个操作员，允许执行者手动更改波形数据的读出位置，使执行者能够临时增加，减少或反转波形数据播放的速度。 一旦停止使用操作者，如果操作者没有被执行者使用，波形数据的重放将返回到与当前读出位置相对应的先前设定的速度的同步。

公开(公告)号：US06323797B1

公开(公告)日：2001-11-27

申请号：US09412201

申请日：1999-10-05

申请人： Tadao Kikumoto ,  Atsushi Hoshiai ,  Satoshi Kusakabe

发明人： Tadao Kikumoto ,  Atsushi Hoshiai ,  Satoshi Kusakabe

IPC分类号： H03M166

CPC分类号： G11B20/10527 ,  G11B20/00007 ,  G11B27/038

摘要： To make possible the smooth compression and expansion of an audio signal without directly culling out or repeating a prescribed segment of the audio signal, in other words, the waveform, by the use of a phase vocoder format and, together with this, making it possible to compress and expand an audio signal that has an abundance of changes. The system includes a storage device in which the data regarding the changes in the amplitude and the frequency of the waveform that accompany the passage of time are stored. The system also includes a time position data generator in which the time position data that indicate the time positions that change such that the time positions of the waveform retrace the passage of time are generated in order. The system also includes a waveform reproducer in which, from the storage means, the amplitude and the frequency data that correspond to the time position of the waveform that indicates the time position data that are generated by the time position data generating means are read out and a waveform that is based on said read out amplitude and frequency is output.

摘要翻译： 为了使音频信号的平滑压缩和扩展成为可能，而不直接剔除或重复音频信号的规定段，换句话说，通过使用相位声码器格式的波形，并且与此一起使得它成为可能 压缩和扩展具有丰富变化的音频信号。 该系统包括存储装置，在存储装置中存储伴随时间的波形的振幅和频率的变化的数据。 该系统还包括一个时间位置数据发生器，其中指示时间位置数据改变，使得波形的时间位置按时间顺序回溯。 该系统还包括波形再现器，其中从存储装置读出对应于指示由时间位置数据产生装置生成的时间位置数据的波形的时间位置的振幅和频率数据，以及 输出基于所述读出的振幅和频率的波形。

公开(公告)号：US5763803A

公开(公告)日：1998-06-09

申请号：US760306

申请日：1996-12-04

申请人： Atsushi Hoshiai ,  Koji Iida

发明人： Atsushi Hoshiai ,  Koji Iida

IPC分类号： G10H1/00 ,  G10H1/053 ,  G10H3/12 ,  G10H3/18 ,  G10K15/12 ,  G01P3/00 ,  G10H1/02 ,  G10H7/00

CPC分类号： G10H1/0091 ,  G10H3/125 ,  G10H3/186 ,  G10H2250/046

摘要： An object of the present invention is to obtain musical tones being equivalent to those of an acoustic guitar with a hollow body with only an electric guitar with a solid body. For the sake of attaining this object, the effecting system according to the present invention is composed of an absolute value detecting means for detecting absolute values of musical tone signals in response to oscillations of the strings, a delay time setting means for setting a delay time based on the absolute values detected by the above described absolute value detecting means, and a delay means for delaying the above described musical tone signals by the delay time which was set by the above described delay time setting means.

摘要翻译： 本发明的目的是获得与具有仅具有固体的电吉他的中空体的原声吉他相当的乐音。 为了达到上述目的，根据本发明的效果系统由绝对值检测装置组成，用于响应于弦的振荡来检测乐音信号的绝对值;延迟时间设定装置，用于设定延迟时间 基于由上述绝对值检测装置检测的绝对值，以及用于将上述乐音信号延迟由上述延迟时间设定装置设定的延迟时间的延迟装置。

公开(公告)号：US06564187B1

公开(公告)日：2003-05-13

申请号：US09536386

申请日：2000-03-28

申请人： Tadao Kikumoto ,  Atsushi Hoshiai ,  Satoshi Kusakabe

发明人： Tadao Kikumoto ,  Atsushi Hoshiai ,  Satoshi Kusakabe

IPC分类号： G10L2104

CPC分类号： G10L21/04

摘要： An apparatus and method for compression and expansion of a wave signal on a time axis. A memory device stores waveform data representative of a waveform for each sub-frequency band of each main-frequency band of a wave signal, in which the wave signal is divided into a plurality of the main-frequency bands, each of the main-frequency bands is divided into a plurality of the sub-frequency bands. A plurality of time axis compression and expansion devices are provided for each of the sub-frequency bands for performing time axis compression and expansion of the waveform. A mixing device mixes signals provided from the time axis compression and expansion devices. Each of the time axis compression and expansion devices performs compression and expansion in a sampling rate that corresponds to one of the main-frequency bands that includes the sub-frequency band that is subject to the waveform time axis compression and expansion, wherein the sampling rate of at least one of the main-frequency bands is different from the sampling rate of at least one other of the main frequency bands.

摘要翻译： 一种用于在时间轴上压缩和扩展波信号的装置和方法。 存储装置存储表示波信号的每个主频带的每个子频带的波形数据，其中波信号被分成多个主频带，每个主频 频带被分成多个子频带。 为每个子频带提供多个时间轴压缩和扩展装置，用于执行波形的时间轴压缩和扩展。 混合装置混合从时间轴压缩和膨胀装置提供的信号。 每个时间轴压缩和膨胀装置以对应于包括经受波形时间轴压缩和扩展的子频带的主频带之一的采样率执行压缩和扩展，其中采样率 至少一个主频带与至少另一个主频带的采样率不同。

公开(公告)号：US5731533A

公开(公告)日：1998-03-24

申请号：US701876

申请日：1996-08-23

申请人： Atsushi Hoshiai

发明人： Atsushi Hoshiai

IPC分类号： G10H1/12 ,  G10H3/18

CPC分类号： G10H3/186 ,  G10H1/12 ,  G10H2250/046 ,  Y10S84/09

摘要： A musical tone signal forming apparatus includes a pickup which detects vibrations of a string of an electric guitar and produces a string vibration signal. The string vibration signal and the output of a first delay imparting a first delay time are combined in a first combiner. Second and third delays impart second and third delay times to the string vibration signal, respectively. Delayed signals from the second and third delays are combined in a second combiner. Outputs of the first and second combiners are combined in a third combiner. The first delay time is determined by the distance between a bridge and a first imaginary pickup supposed to detect vibrations of the string. The second delay time is determined by the distance between the first imaginary pickup and a second imaginary pickup supposed to be disposed nearer to the bridge. The third delay time is determined by the distance between the bridge and the mid-point of the first and second imaginary pickups.

摘要翻译： 乐音信号形成装置包括：拾音器，其检测电吉他琴弦的振动并产生琴弦振动信号。 绳索振动信号和赋予第一延迟时间的第一延迟的输出在第一组合器中组合。 第二和第三延迟分别给弦振动信号赋予第二和第三延迟时间。 来自第二和第三延迟的延迟信号被组合在第二组合器中。 第一组合器和第二组合器的输出在第三组合器中组合。 第一延迟时间由桥和想要检测弦的振动的第一假想拾取器之间的距离确定。 第二延迟时间由第一假想拾取器和假定设置在较靠近桥架的第二假想拾取器之间的距离确定。 第三延迟时间由桥与第一和第二假想拾音器的中点之间的距离确定。

公开(公告)号：US06721711B1

公开(公告)日：2004-04-13

申请号：US09691466

申请日：2000-10-18

申请人： Atsushi Hoshiai

发明人： Atsushi Hoshiai

IPC分类号： G10L1900

CPC分类号： G10H7/02 ,  G10H2210/391 ,  G10H2240/311 ,  G10L21/04

摘要： The present invention relates to an audio waveform reproduction apparatus for reproducing a recorded audio waveform at a reproduction tempo that can be specified as desired, and its object is to achieve that the reproduction does not deviate from the tempo when performed at a tempo that is different from the tempo at the time of recording of the audio waveform. The audio waveform reproduction apparatus includes a storage means for storing waveform data of the audio waveform, an input means for inputting reproduction tempo information, a first information production means for producing first information (TP) that is a time function based on the reproduction tempo information, a second information production means for producing second information (PP) that is a time function based on time axis compression/expansion information (TR), a compression/expansion information production means for comparing the first information and the second information and calculating the time axis compression/expansion information (TR) towards matching the temporal change of the second information with the temporal change of the first information, and a time axis compression/expansion processing means for performing time axis compression/expansion processing based on the time axis compression/expansion information (TR) to produce a reproduction audio waveform, wherein the first information (TP) and the second information (PP) represent positions on a common axis.

摘要翻译： 本发明涉及一种音频波形再现装置，用于以可以根据需要指定的再现速度再现记录的音频波形，并且其目的是实现当以不同的速度执行时再现速度不会偏离速度 从记录音频波形时的速度。 音频波形再现装置包括用于存储音频波形的波形数据的存储装置，用于输入再现速度信息的输入装置，用于产生作为基于再现速度信息的时间函数的第一信息（TP）的第一信息产生装置 ，用于产生作为基于时间轴压缩/扩展信息（TR）的时间函数的第二信息（PP）的第二信息产生装置，用于比较第一信息和第二信息并计算时间的压缩/扩展信息产生装置 轴向压缩/扩展信息（TR），用于将第二信息的时间变化与第一信息的时间变化进行匹配;以及时间轴压缩/扩展处理装置，用于基于时间轴压缩/ 扩展信息（TR）产生再现音频波形，其中 在第一信息（TP）中，第二信息（PP）表示公共轴上的位置。

公开(公告)号：US06201175B1

公开(公告)日：2001-03-13

申请号：US09511009

申请日：2000-02-22

申请人： Tadao Kikumoto ,  Atsushi Hoshiai ,  Satoshi Kusakabe

发明人： Tadao Kikumoto ,  Atsushi Hoshiai ,  Satoshi Kusakabe

IPC分类号： G06F1715

CPC分类号： G10H7/02 ,  G10H2250/571

摘要： A method for generating a compressed or expanded waveform from original waveform data is disclosed. A plurality of frequency band-divided waveform data is generated from the original waveform data. Phase and amplitude data having periodically changing amplitudes are extracted for each of the plurality of frequency band-divided waveform data. The periodically changing phase data is converted to periodically changing frequency data, and a temporal change rate of the periodically changing amplitude and frequency data is adjusted for each of the plurality of frequency band-divided waveform data. The temporally adjusted amplitude and frequency data for the plurality of frequency band-divided waveform data is then combined to generate the compressed or expanded waveform.

摘要翻译： 公开了一种从原始波形数据生成压缩或扩展波形的方法。 从原始波形数据生成多个频带分割波形数据。 针对多个频带分割波形数据中的每一个提取具有周期性变化幅度的相位和振幅数据。 周期性变化的相位数据被转换为周期性变化的频率数据，并且针对多个频带分割波形数据中的每一个调整周期性变化的幅度和频率数据的时间变化率。 然后组合用于多个频带分割波形数据的时间上调整的幅度和频率数据以产生压缩或扩展的波形。

公开(公告)号：US5367120A

公开(公告)日：1994-11-22

申请号：US924979

申请日：1992-08-05

申请人： Atsushi Hoshiai

发明人： Atsushi Hoshiai

IPC分类号： G10H1/12 ,  G10H3/12 ,  G10H3/18 ,  G10H5/00

CPC分类号： G10H3/125 ,  G10H1/125 ,  G10H3/186 ,  G10H5/00 ,  G10H2210/066 ,  G10H2250/105

摘要： A musical tone signal forming device for an electric string music instrument having at least one pickup for detecting and delivering vibration of a string as an electric musical sound signal, including at least one comb filter having the electric musical sound signal as an input thereof; and structure for producing parameters corresponding to a specific position, which differs from a position of the pickup with respect to the string, at which an imaginary pickup is disposed and a reference vibration frequency of the string and supplying the parameters to the at least one comb filter to determine a frequency characteristic of the at least one comb filter, wherein the frequency characteristic of the at least one comb filter simulates a frequency characteristic of the electric musical sound signal delivered from the imaginary pickup disposed at the specific position.

摘要翻译： 一种用于电弦乐器的乐音信号形成装置，具有至少一个拾音器，用于检测和传送作为电音乐声音信号的弦的振动，包括至少一个具有电音乐声音信号的梳状滤波器作为其输入; 以及用于产生与特定位置相对应的参数的结构，该特定位置与拾取器相对于设置有虚拟拾取器的弦的位置和串的基准振动频率不同，并且将参数提供给至少一个梳子 滤波器以确定所述至少一个梳状滤波器的频率特性，其中所述至少一个梳状滤波器的频率特性模拟从设置在特定位置处的假想拾取器传送的电音乐声音信号的频率特性。

公开(公告)号：US4715257A

公开(公告)日：1987-12-29

申请号：US889472

申请日：1986-07-25

申请人： Atsushi Hoshiai ,  Hiroyuki Endo

发明人： Atsushi Hoshiai ,  Hiroyuki Endo

IPC分类号： G10H7/02 ,  G10H1/053 ,  G10H1/06 ,  G10H7/00 ,  G10H7/08 ,  H03H17/00 ,  H03H17/02 ,  H03M3/02

CPC分类号： G10H7/08 ,  G10H2250/281 ,  G10H2250/545 ,  G10H2250/621 ,  G10H2250/631

摘要： An improved waveform generator used in an electronic musical equipment for reproducing musical sounds stored therein, in which the waveform of each musical sound is stored in a memory as a sequence of amplitudes sampled at specific sampling points on the waveform and reproduced therefrom by interpolating arithmetically any point between these sampling points.

摘要翻译： 一种用于电子音乐设备中用于再现存储在其中的音乐声音的改进的波形发生器，其中每个音乐声音的波形被存储在存储器中，作为在波形上的特定采样点采样的幅度序列，并通过内插任意 在这些采样点之间。