公开(公告)号：US07692087B2

公开(公告)日：2010-04-06

申请号：US11810872

申请日：2007-06-06

申请人： Masatsugu Okazaki ,  Tokio Shirakawa

发明人： Masatsugu Okazaki ,  Tokio Shirakawa

IPC分类号： G10H1/00

CPC分类号： G10H7/12 ,  G10H7/02 ,  G10H2250/585 ,  G10H2250/595 ,  G10H2250/601 ,  G10H2250/621 ,  G10H2250/641

摘要： Compressed waveform data structure is proposed which is suited for segmentation of a plurality of samples of compressed waveform data into a plurality of frames and subsequent storage of each of the frames. The number of bits per sample of the compressed waveform data is variable between the frames, but uniform, i.e. the same among all of the samples, within each of the frames. Each of the frames has a same data storage size. Each of the frames includes, in a predetermined layout, an auxiliary information area for storing auxiliary information that includes compression-related information to be used for decompressing the compressed waveform data, and a data area for storing a plurality of samples of the compressed waveform data of the frame with each of the samples comprising a same number of bits. Thus, respective start positions of the frames and compressed waveform data in a memory can be fixed at predetermined positions common to the frames, so that readout control can be performed with ease.

摘要翻译： 提出了压缩波形数据结构，其适用于将压缩波形数据的多个样本分割成多个帧并随后存储每个帧。 每个样本的压缩波形数据的位数在帧之间是可变的，但在每个帧内是均匀的，即所有采样中的相同。 每个帧具有相同的数据存储大小。 每个帧以预定布局包括用于存储辅助信息的辅助信息区域，该辅助信息区域包括用于解压缩压缩波形数据的压缩相关信息，以及用于存储压缩波形数据的多个样本的数据区域 其中每个样本包括相同数量的比特。 因此，存储器中的帧和压缩波形数据的各个开始位置可以固定在帧共同的预定位置处，从而可以容易地执行读出控制。

公开(公告)号：US20080078280A1

公开(公告)日：2008-04-03

申请号：US11860484

申请日：2007-09-24

申请人： Masatsugu OKAZAKI ,  Tokio SHIRAKAWA

发明人： Masatsugu OKAZAKI ,  Tokio SHIRAKAWA

IPC分类号： G10H7/00

CPC分类号： G10H7/12 ,  G10H7/02 ,  G10H2250/585 ,  G10H2250/595 ,  G10H2250/601 ,  G10H2250/621 ,  G10H2250/641

摘要： Compressed waveform data structure is proposed which is suited for segmentation of a plurality of samples of compressed waveform data into a plurality of frames and subsequent storage of each of the frames. The number of bits per sample of the compressed waveform data is variable between the frames, but uniform, i.e. the same among all of the samples, within each of the frames. Each of the frames has a same data storage size. Each of the frames includes, in a predetermined layout, an auxiliary information area for storing auxiliary information that includes compression-related information to be used for decompressing the compressed waveform data, and a data area for storing a plurality of samples of the compressed waveform data of the frame with each of the samples comprising a same number of bits. Thus, respective start positions of the frames and compressed waveform data in a memory can be fixed at predetermined positions common to the frames, so that readout control can be performed with ease.

摘要翻译： 提出了压缩波形数据结构，其适用于将压缩波形数据的多个样本分割成多个帧并随后存储每个帧。 每个样本的压缩波形数据的位数在帧之间是可变的，但在每个帧内是均匀的，即所有采样中的相同。 每个帧具有相同的数据存储大小。 每个帧以预定布局包括用于存储辅助信息的辅助信息区域，该辅助信息区域包括用于解压缩压缩波形数据的压缩相关信息，以及用于存储压缩波形数据的多个样本的数据区域 其中每个样本包括相同数量的比特。 因此，存储器中的帧和压缩波形数据的各个开始位置可以固定在帧共同的预定位置处，从而可以容易地执行读出控制。

公开(公告)号：US20060081118A1

公开(公告)日：2006-04-20

申请号：US11289881

申请日：2005-11-29

申请人： Masatsugu Okazaki ,  Tokio Shirakawa

发明人： Masatsugu Okazaki ,  Tokio Shirakawa

IPC分类号： G10H7/00

CPC分类号： G10H7/12 ,  G10H7/02 ,  G10H2250/585 ,  G10H2250/595 ,  G10H2250/601 ,  G10H2250/621 ,  G10H2250/641

摘要： Compressed waveform data structure is proposed which is suited for segmentation of a plurality of samples of compressed waveform data into a plurality of frames and subsequent storage of each of the frames. The number of bits per sample of the compressed waveform data is variable between the frames, but uniform, i.e. the same among all of the samples, within each of the frames. Each of the frames has a same data storage size. Each of the frames includes, in a predetermined layout, an auxiliary information area for storing auxiliary information that includes compression-related information to be used for decompressing the compressed waveform data, and a data area for storing a plurality of samples of the compressed waveform data of the frame with each of the samples comprising a same number of bits. Thus, respective start positions of the frames and compressed waveform data in a memory can be fixed at predetermined positions common to the frames, so that readout control can be performed with ease.

摘要翻译： 提出了压缩波形数据结构，其适用于将压缩波形数据的多个样本分割成多个帧并随后存储每个帧。 每个样本的压缩波形数据的位数在帧之间是可变的，但在每个帧内是均匀的，即所有采样中的相同。 每个帧具有相同的数据存储大小。 每个帧以预定布局包括用于存储辅助信息的辅助信息区域，该辅助信息区域包括用于解压缩压缩波形数据的压缩相关信息，以及用于存储压缩波形数据的多个样本的数据区域 其中每个样本包括相同数量的比特。 因此，存储器中的帧和压缩波形数据的各个开始位置可以固定在帧共同的预定位置处，从而可以容易地执行读出控制。

公开(公告)号：US08706506B2

公开(公告)日：2014-04-22

申请号：US11965539

申请日：2007-12-27

申请人： Masatsugu Okazaki

发明人： Masatsugu Okazaki

IPC分类号： G10L19/00 ,  G10L21/00

CPC分类号： G10H7/12 ,  G10H2250/581 ,  G10L19/22

摘要： In a waveform compressing apparatus, a trial mode selecting portion selects a trial mode having the highest compression rate from a plurality of candidate modes which have not been selected before as a trial mode for generating a residue code, the selected trial mode comprising a scalar quantization mode or a vector quantization mode. A waveform data compressing portion compresses a given data amount of original waveform data according to the selected trial mode so as to generate the residue code, the data amount being determined in correspondence with the selected trial mode. A waveform data restoring portion generates a restored waveform data from the compressed data using the generated residue code. A determining portion measures an evaluation value of a quantization error contained in the restored waveform data relative to the original waveform data, and determines whether the evaluation value is equal to or smaller than a predetermined allowable value. A mode change instructing portion outputs a mode change instruction for instructing the trial mode selecting portion to select another trial mode when the evaluation value is not smaller than the predetermined allowable value.

摘要翻译： 在波形压缩装置中，试用模式选择部从多个未被选择的候选模式中选择具有最高压缩率的试用模式作为生成残留码的试用模式，所选择的试验模式包括标量化 模式或矢量量化模式。 波形数据压缩部分根据所选择的试用模式压缩给定数据量的原始波形数据，以产生残留码，数据量根据所选择的试用模式确定。 波形数据恢复部分使用产生的残留码从压缩数据生成恢复的波形数据。 确定部分测量相对于原始波形数据的恢复波形数据中包含的量化误差的评估值，并且确定评估值是否等于或小于预定允许值。 当评估值不小于预定允许值时，模式改变指令部分输出用于指示试用模式选择部分选择另一试用模式的模式改变指令。

公开(公告)号：US07378586B2

公开(公告)日：2008-05-27

申请号：US10676205

申请日：2003-09-30

申请人： Masatsugu Okazaki

发明人： Masatsugu Okazaki

IPC分类号： G10H7/00

CPC分类号： G10H7/12 ,  G10H7/02 ,  G10H2250/585 ,  G10H2250/595 ,  G10H2250/601 ,  G10H2250/621 ,  G10H2250/641

摘要： Compressed waveform data structure is proposed which is suited for segmentation of a plurality of samples of compressed waveform data into a plurality of frames and subsequent storage of each of the frames. The number of bits per sample of the compressed waveform data is variable between the frames, but uniform, i.e. the same among all of the samples, within each of the frames. Each of the frames has a same data storage size. Each of the frames includes, in a predetermined layout, an auxiliary information area for storing auxiliary information that includes compression-related information to be used for decompressing the compressed waveform data, and a data area for storing a plurality of samples of the compressed waveform data of the frame with each of the samples comprising a same number of bits.

摘要翻译： 提出了压缩波形数据结构，其适用于将压缩波形数据的多个样本分割成多个帧并随后存储每个帧。 每个样本的压缩波形数据的位数在帧之间是可变的，但在每个帧内是均匀的，即所有采样中的相同。 每个帧具有相同的数据存储大小。 每个帧以预定布局包括用于存储辅助信息的辅助信息区域，该辅助信息区域包括用于解压缩压缩波形数据的压缩相关信息，以及用于存储压缩波形数据的多个样本的数据区域 其中每个样本包括相同数量的比特。

公开(公告)号：US08791350B2

公开(公告)日：2014-07-29

申请号：US13600494

申请日：2012-08-31

申请人： Masatsugu Okazaki

发明人： Masatsugu Okazaki

IPC分类号： G10H1/08 ,  G10H7/00 ,  G10H7/02

CPC分类号： G10H7/04 ,  G10H1/38 ,  G10H1/42 ,  G10H2210/391 ,  G10H2250/541

摘要： An accompaniment data generating apparatus has a phrase waveform data storing portion for storing sets of phrase waveform data each indicative of a phrase of accompaniment tones preformed at a reference tempo and each corresponding to a different reference note. The accompaniment data generating apparatus obtains a reproduction tempo, obtains the first reference note, selects a set of phrase waveform data corresponding to the second reference note whose tone pitch is different from a tone pitch of the first reference note, and reads out the selected phrase waveform data set at a speed by which the tone pitch of the second reference note of the selected phrase waveform data set agrees with the tone pitch of the first reference note of a case where a set of phrase waveform data corresponding to the first reference note is reproduced at the reference note.

摘要翻译： 伴奏数据产生装置具有短语波形数据存储部分，用于存储每个表示以参考速度执行的每个对应于不同参考音符的伴奏音的短语的短语波形数据组。 伴奏数据产生装置获得再现速度，获得第一参考音符，选择与音调与第一参考音符的音调音调不同的第二参考音符对应的一组短语波形数据，并读出所选择的短语 所选择的短语波形数据集的第二参考音符的音调音调与第一参考音符的音调音调相对应的速度的波形数据，其中对应于第一参考音符的一组短语波形数据是 转载于参考说明。

公开(公告)号：US08530736B2

公开(公告)日：2013-09-10

申请号：US13310099

申请日：2011-12-02

申请人： Encai Liu ,  Masatsugu Okazaki ,  Eiji Tominaga

发明人： Encai Liu ,  Masatsugu Okazaki ,  Eiji Tominaga

IPC分类号： G10H7/00

CPC分类号： G10H5/007

摘要： A musical tone signal is synthesized based on performance information to simulate a sound generated from a musical instrument having a string and a body that supports the string by a support. There is provided a closed loop circuit having a delay element that simulates delay characteristic of vibration propagated through the string and a characteristic control element that simulates a variation in amplitude or frequency. A string model calculation circuit inputs an excitation signal based on the performance information to the closed loop circuit, and calculates first information representing a force of the string acting on the support based on a cyclic signal generated in the closed loop and representing the vibration of the string circuit. A body model calculation circuit calculates second information representing a displacement of the body or a derivative of the displacement. A musical tone signal calculation circuit calculates the musical tone signal.

摘要翻译： 基于演奏信息合成乐音信号，以模拟由具有支撑弦支撑弦的乐器的乐器产生的声音。 提供了一种闭环电路，其具有模拟通过串传播的振动的延迟特性的延迟元件和模拟振幅或频率变化的特征控制元件。 串型计算电路基于性能信息将激励信号输入到闭环电路，并且基于在闭环中产生的循环信号计算表示作用在支架上的串的力的第一信息，并表示 串电路。 身体模型计算电路计算表示身体的位移或位移的导数的第二信息。 乐音信号计算电路计算乐音信号。

公开(公告)号：US20130047821A1

公开(公告)日：2013-02-28

申请号：US13600494

申请日：2012-08-31

申请人： Masatsugu OKAZAKI

发明人： Masatsugu OKAZAKI

IPC分类号： G10H7/04

CPC分类号： G10H7/04 ,  G10H1/38 ,  G10H1/42 ,  G10H2210/391 ,  G10H2250/541

摘要： An accompaniment data generating apparatus has a phrase waveform data storing portion for storing sets of phrase waveform data each indicative of a phrase of accompaniment tones preformed at a reference tempo and each corresponding to a different reference note. The accompaniment data generating apparatus obtains a reproduction tempo, obtains the first reference note, selects a set of phrase waveform data corresponding to the second reference note whose tone pitch is different from a tone pitch of the first reference note, and reads out the selected phrase waveform data set at a speed by which the tone pitch of the second reference note of the selected phrase waveform data set agrees with the tone pitch of the first reference note of a case where a set of phrase waveform data corresponding to the first reference note is reproduced at the reference note.

摘要翻译： 伴奏数据产生装置具有短语波形数据存储部分，用于存储每个表示以参考速度执行的每个对应于不同参考音符的伴奏音的短语的短语波形数据组。 伴奏数据产生装置获得再现速度，获得第一参考音符，选择与音调与第一参考音符的音调音调不同的第二参考音符对应的一组短语波形数据，并读出所选择的短语 所选择的短语波形数据集的第二参考音符的音调音调与第一参考音符的音调音调相对应的速度的波形数据，其中对应于第一参考音符的一组短语波形数据是 转载于参考说明。

公开(公告)号：US20120137857A1

公开(公告)日：2012-06-07

申请号：US13310099

申请日：2011-12-02

申请人： Encai Liu ,  Masatsugu Okazaki ,  Eiji Tominaga

发明人： Encai Liu ,  Masatsugu Okazaki ,  Eiji Tominaga

IPC分类号： G10H7/00

CPC分类号： G10H5/007

摘要： A musical tone signal is synthesized based on performance information to simulate a sound generated from a musical instrument having a string and a body that supports the string by a support. There is provided a closed loop circuit having a delay element that simulates delay characteristic of vibration propagated through the string and a characteristic control element that simulates a variation in amplitude or frequency. A string model calculation circuit inputs an excitation signal based on the performance information to the closed loop circuit, and calculates first information representing a force of the string acting on the support based on a cyclic signal generated in the closed loop and representing the vibration of the string circuit. A body model calculation circuit calculates second information representing a displacement of the body or a derivative of the displacement. A musical tone signal calculation circuit calculates the musical tone signal.

摘要翻译： 基于演奏信息合成乐音信号，以模拟由具有支撑弦支撑弦的乐器的乐器产生的声音。 提供了一种闭环电路，其具有模拟通过串传播的振动的延迟特性的延迟元件和模拟振幅或频率变化的特征控制元件。 串型计算电路基于性能信息将激励信号输入到闭环电路，并且基于在闭环中产生的循环信号计算表示作用在支架上的串的力的第一信息，并表示 串电路。 身体模型计算电路计算表示身体的位移或位移的导数的第二信息。 乐音信号计算电路计算乐音信号。

公开(公告)号：US20080167882A1

公开(公告)日：2008-07-10

申请号：US11965539

申请日：2007-12-27

申请人： Masatsugu Okazaki

发明人： Masatsugu Okazaki

IPC分类号： G10L21/04

CPC分类号： G10H7/12 ,  G10H2250/581 ,  G10L19/22

摘要： In a waveform compressing apparatus, a trial mode selecting portion selects a trial mode having the highest compression rate from a plurality of candidate modes which have not been selected before as a trial mode for generating a residue code. A waveform data compressing portion compresses a given data amount of original waveform data according to the selected trial mode so as to generate the residue code, the data amount being determined in correspondence with the selected trial mode. A waveform data restoring portion generates a restored waveform data from the compressed data using the generated residue code. A determining portion measures an evaluation value of a quantization error contained in the restored waveform data relative to the original waveform data, and determines whether the evaluation value is equal to or smaller than a predetermined allowable value. A mode change instructing portion outputs a mode change instruction for instructing the trial mode selecting portion to select another trial mode when the evaluation value is not smaller than the predetermined allowable value.

摘要翻译： 在波形压缩装置中，试用模式选择部从多个未被选择的候选模式中选择具有最高压缩率的试用模式作为生成残留码的试用模式。 波形数据压缩部分根据所选择的试用模式压缩给定数据量的原始波形数据，以产生残留码，数据量根据所选择的试用模式确定。 波形数据恢复部分使用产生的残留码从压缩数据生成恢复的波形数据。 确定部分测量相对于原始波形数据的恢复波形数据中包含的量化误差的评估值，并且确定评估值是否等于或小于预定允许值。 当评估值不小于预定允许值时，模式改变指令部分输出用于指示试用模式选择部分选择另一试用模式的模式改变指令。