公开(公告)号：US4905289A

公开(公告)日：1990-02-27

申请号：US315248

申请日：1989-02-27

申请人： Ljubomir Micic ,  Thomas Fischer

发明人： Ljubomir Micic ,  Thomas Fischer

IPC分类号： G11C27/00 ,  G10H7/12 ,  G11C7/16

CPC分类号： G11C7/16 ,  G10H7/12 ,  G11C2207/16

摘要： A semiconductor read only memory (ROM) serves to store digitized audio signals in a redundancy free form. The output of the memory is coupled to the input of a data expander in the playback circuit. The memory may also store an algorithm which serves to control operation of the data expander before the signals are further processed via a digital-to-analog converter and where the output of the digital/analog converter is then coupled to the input of an analog amplifier and then to a loud speaker arrangement. In this manner, digitized audio signals can be operated on by either error correcting modules or data expansion modules, both of which modules may include microprocessors where the algorithms for control of the microprocessors are also stored within the read only memory. In this manner, all mechanical movements between the storage medium and the pick up devices, which are typical of the prior art, is eliminated as the main storage medium consists of a read only memory or a plurality of such devices.

摘要翻译： 半导体只读存储器（ROM）用于以无冗余形式存储数字化的音频信号。 存储器的输出耦合到重放电路中的数据扩展器的输入。 存储器还可以存储用于在经由数模转换器进一步处理信号之前控制数据扩展器的操作的算法，然后将数字/模拟转换器的输出耦合到模拟放大器的输入 然后到大声扬声器安排。 以这种方式，数字化音频信号可以由纠错模块或数据扩展模块进行操作，这两个模块可以包括微处理器，其中用于控制微处理器的算法也存储在只读存储器中。 以这种方式，由于主存储介质由只读存储器或多个这样的设备组成，消除了现有技术典型的存储介质和拾取装置之间的所有机械运动。

公开(公告)号：US4655115A

公开(公告)日：1987-04-07

申请号：US644139

申请日：1984-08-23

申请人： Tetsuo Nishimoto

发明人： Tetsuo Nishimoto

IPC分类号： G10H7/08 ,  G10H1/053 ,  G10H7/12 ,  G10H1/08 ,  G10H1/14

CPC分类号： G10H7/12 ,  G10H1/053 ,  G10H2250/141 ,  Y10S84/10

摘要： In a musical tone synthesizer in which an amplitude-modulated carrier wave delivered from an amplitude modulator is used to form a musical tone signal, the amplitude-modulated carrier wave is fed back to the input side of the amplitude modulator as a modulation signal, a portion thereof, a portion of a carrier wave or a composite signal of the modulation signal and the carrier wave. The amount of feedback may be controlled by multiplying the amplitude-modulated carrier wave with a predetermined modulation index. Furthermore, the modulation index may be charged with time so that the control of spectrum construction of the musical tone signal is readily performed. According to a modified embodiment, a plurality of amplitude-modulators are provided which are connected in a ring form feedback loop in which the modulated outputs of preceding amplitude modulators are supplied respectively to succeeding amplitude modulators.

摘要翻译： 在其中使用从振幅调制器传送的调幅载波形成乐音信号的乐音合成器中，幅度调制载波被作为调制信号反馈到幅度调制器的输入侧， 部分，载波的一部分或调制信号和载波的复合信号。 可以通过将调幅载波与预定的调制指数相乘来控制反馈量。 此外，调制指数可以随时间充电，从而容易地执行乐音信号的频谱构造的控制。 根据修改的实施例，提供多个幅度调制器，其以环形反馈环路连接，其中先前振幅调制器的调制输出分别提供给后续的幅度调制器。

公开(公告)号：US4641564A

公开(公告)日：1987-02-10

申请号：US621246

申请日：1984-06-15

申请人： Shimaji Okamoto

发明人： Shimaji Okamoto

IPC分类号： G10H7/12 ,  G10H1/06

CPC分类号： G10H7/12 ,  G10H2250/591 ,  Y10S84/09

摘要： A musical tone producing device of a waveform readout type has a reference waveform memory and a difference waveform memory.The reference waveform memory stores a reference waveform which is similar commonly to each of divided waveforms belonging to a plurality of blocks into which a musical tone waveform of a musical tone to be produced is divided.The difference waveform memory stores difference waveforms, each of which is a difference between the reference waveform and each of divided waveforms.The reproduction of the musical tone waveform is accomplished by reading out the reference waveform and the difference waveforms successively and by successively adding the read out reference waveform and the difference waveforms. This musical tone waveform synthesis according to utilization of difference waveforms contributes to the reduction of memory size.

摘要翻译： 波形读出型的乐音产生装置具有参考波形存储器和差分波形存储器。 参考波形存储器存储与属于要生成的乐音的乐音波形被划分成多个块的每个分频波形相同的参考波形。 差分波形存储器存储差分波形，每个波形是参考波形和每个分割波形之间的差。 乐音波形的再现是通过连续地读出参考波形和差分波形，并通过连续地添加读出的参考波形和差分波形来实现的。 根据利用差分波形的这种乐音波形合成有助于减小存储器大小。

公开(公告)号：US4342245A

公开(公告)日：1982-08-03

申请号：US238764

申请日：1981-02-27

申请人： Glenn M. Gross

发明人： Glenn M. Gross

IPC分类号： G10H7/12 ,  G10H1/06 ,  G10H7/00

CPC分类号： G06F1/022 ,  G10H7/12 ,  G10H2250/555

摘要： A tone source apparatus for an electronic musical instrument includes a sequentially addressable memory storing a plurality of waveform segment defining instructions, each instruction including a component representative of the amplitude variation, the time duration and the direction of change of the associated waveform segment. Output means comprising an adder-subtractor circuit and a latch is operated for accumulatively processing the stored amplitude variation representative components for producing a stepped output signal whose direction of slope is determined by the stored direction component. Control means interposed between the memory and the output means is selectively operable for modifying the stored amplitude variation components coupled to the output means for imparting a sinusoidal inflection to the stepped output signal.

摘要翻译： 一种用于电子乐器的音源设备包括存储多个定义指令的波形段的顺序可寻址存储器，每个指令包括代表相关波形段的幅度变化，持续时间和变化方向的分量。 输出装置包括加减法器电路，并且操作锁存器以累加处理所存储的幅度变化代表分量，以产生其斜率方向由所存储的方向分量确定的阶跃输出信号。 插入在存储器和输出装置之间的控制装置可选择性地可操作用于修改存储的与输出装置耦合的振幅变化分量，以将正弦曲线赋予阶梯式输出信号。

公开(公告)号：US3982461A

公开(公告)日：1976-09-28

申请号：US584368

申请日：1975-06-05

申请人： Toshio Kugisawa

发明人： Toshio Kugisawa

IPC分类号： G10H1/057 ,  G10H7/00 ,  G10H7/12 ,  G10F1/00

CPC分类号： G10H7/12 ,  G10H2250/591

摘要： A musical-tone signal forming apparatus is provided for an electronic musical instrument. The apparatus comprises a musical-tone wave form setting circuit in which at least one cycle of a musical-tone wave form is repeatedly subjected to sampling at n points and the amplitude at each sampling point is compared with the amplitude at the preceeding sampling point. An increase, equal or decrease signal is generated in the form of a digital signal to indicate the relationship determined. An envelope setting circuit is provided in which an envelope of a desired musical-tone is subjected to sampling at m point and the analog amount at each sampling point is generated sequentially as a digital signal corresponding thereto. A pulse generating circuit whereby a pulse signal having a number corresponding to the digital signal value produced by the envelope setting circuit is repeatedly generated is employed. Also employed is a distribution circuit including addition and subtraction output terminals in which the output signals of the pulse generating circuit are distributed either to the addition output terminal or the subtraction output terminal according to the digital signals produced by the musical-tone wave form setting circuit. There is also used an up-down counter in which output signals of the addition output signal and the subtraction output terminal are respectively added or subtracted. A D-A converter is provided in which digital signals generated by the up-down counter are converted into analog signals.

摘要翻译： 为电子乐器提供乐音信号形成装置。 该装置包括乐音波形设置电路，其中音调波形的至少一个周期在n个点被重复地进行采样，并且将每个采样点处的振幅与先前采样点处的幅度进行比较。 以数字信号的形式产生增加，等于或减小的信号以指示确定的关系。 提供一种包络设置电路，其中所需乐曲的包络在m点进行采样，并且在每个采样点处的模拟量被顺序地生成为与其对应的数字信号。 采用脉冲发生电路，由此重复产生具有与由包络设置电路产生的数字信号值相对应的数字的脉冲信号。 还采用包括加法和减法输出端的分配电路，其中脉冲发生电路的输出信号根据由乐音波形设置电路产生的数字信号分配到加法输出端或减法输出端 。 还可以使用加法计数器，其中分别添加或减去加法输出信号和减法输出端子的输出信号。 提供了一种D-A转换器，其中由升降计数器产生的数字信号被转换为模拟信号。

公开(公告)号：US3982460A

公开(公告)日：1976-09-28

申请号：US613931

申请日：1975-09-16

申请人： Nobuharu Obayashi ,  Hikaru Hashizume ,  Noriji Sakashita ,  Seiji Kameyama ,  Sadaaki Ezawa ,  Toshio Kugisawa ,  Yutaka Washiyama ,  Tatsunori Kondo ,  Hironori Watanabe

发明人： Nobuharu Obayashi ,  Hikaru Hashizume ,  Noriji Sakashita ,  Seiji Kameyama ,  Sadaaki Ezawa ,  Toshio Kugisawa ,  Yutaka Washiyama ,  Tatsunori Kondo ,  Hironori Watanabe

IPC分类号： G10H7/00 ,  G10H1/057 ,  G10H7/12 ,  G10F1/00

CPC分类号： G10H1/057 ,  G10H7/12 ,  G10H2250/591

摘要： An apparatus for forming a musical-tone waveform for an electronic musical instrument characterized in that at least one cycle of a musical-tone waveform, which it is desired be produced, is divided in amplitude by dividing lines at equal intervals and sampling points on a time axis are determined from respective crossing points between the waveform and the dividing lines and the distance between the initial and the final sampling points is represented by an appropriate number of pulses so that each sampling point may be represented by a pulse number. There is further provided a memory circuit wherein each sampling point, that is, the pulse number thereof is set up in the form of a digital signal. Additionally, there is a set up in the form of a digital signal a tendency such as increase, decrease or equal at each sampling point with reference to the preceding sampling point. An envelope setting device is used wherein the envelope of a muscial-tone waveform, which it is desired be produced, is subjected to sampling and the analog amount of each sampling point is set up in the form of digital signal. An accumulatively adding device is employed whereby the output digital signal of the envelope setting device is accumulatively added to or subtracted from the output digital signal of the memory circuit. The accumulatively adding device is connected at its output terminal to a D-A converter for converting its output signal into an analog signal.

摘要翻译： 一种用于形成用于电子乐器的乐音波形的装置，其特征在于，要产生希望产生的乐音波形的至少一个周期通过以等间隔的分割线和 时间轴由波形和分割线之间的各个交叉点确定，并且初始和最终采样点之间的距离由适当数量的脉冲表示，使得每个采样点可以由脉冲数表示。 还提供了一种存储电路，其中每个采样点，即其脉冲数量以数字信号的形式被设置。 此外，以数字信号的形式设置参考前述采样点的每个采样点的增加，减小或相等的趋势。 使用信封设定装置，其中要产生希望产生的乐音波形的包络进行采样，并且以数字信号的形式设置每个采样点的模拟量。 使用累加装置，由此将包络线设定装置的输出数字信号累积地加到或从存储电路的输出数字信号中减去。 累加装置在其输出端连接到D-A转换器，用于将其输出信号转换为模拟信号。

公开(公告)号：US09489938B2

公开(公告)日：2016-11-08

申请号：US13924387

申请日：2013-06-21

申请人： Yamaha Corporation

发明人： Tetsuya Mizuguchi ,  Kiyohisa Sugii

IPC分类号： G10L13/00 ,  G10L13/04 ,  G10H7/02 ,  G10L13/033 ,  G10H7/12 ,  G10L13/08

CPC分类号： G10L13/04 ,  G10H7/02 ,  G10H7/12 ,  G10H2210/325 ,  G10H2220/011 ,  G10H2220/126 ,  G10H2240/145 ,  G10H2250/455 ,  G10L13/0335 ,  G10L13/08

摘要： A sound synthesis apparatus connected to a display device, includes a processor configured to: display a lyric on a screen of the display device; input a pitch based on an operation of a user, after the lyric has been displayed on the screen; and output a piece of waveform data representing a singing sound of the displayed lyric based on the inputted pitch.

摘要翻译： 一种连接到显示装置的声音合成装置，包括：处理器，被配置为：在所述显示装置的屏幕上显示歌词; 在屏幕上显示歌词后，基于用户的操作输入音高; 并根据输入的音调输出表示所显示歌词的歌声的一条波形数据。

公开(公告)号：US07342168B2

公开(公告)日：2008-03-11

申请号：US11355702

申请日：2006-02-16

申请人： Masaru Setoguchi

发明人： Masaru Setoguchi

IPC分类号： G10H7/12 ,  H02M5/297

CPC分类号： G10H1/366 ,  G10H1/20 ,  G10H2210/066 ,  G10L25/90

摘要： The present invention provides a technique for shifting pitch to target pitch without detecting the original pitch directly, and for extracting the pitch of the audio waveform exactly. A phase compensator extracts 2 or more frequency channels each having frequency components of a harmonic overtone whose frequency is 1 or more times as higher than frequency of a fundamental tone of the original sound, from the frequency channels from which the frequency components are extracted by fast Fourier transform. The phase compensator calculates a scaling value to be used for converting the fundamental tone to another target fundamental tone, and performs phase compensation in accordance with the scaling value. A pitch shifter performs pitch scaling in accordance with the scaling value onto the audio data resultant from inverse fast Fourier transform onto the phase compensated frequency components. Thus, audio data representing the target fundamental tone are generated.

摘要翻译： 本发明提供了一种用于将音调偏移到目标音调而不直接检测原始音调并用于精确地提取音频波形的音调的技术。 相位补偿器提取两个或更多个频率信号，每个频率分量具有频率比原始声音的基本色调的频率高1倍或更多倍的谐波泛音的频率分量，从频率分量通过快速提取的频率信道 傅里叶变换。 相位补偿器计算用于将基音转换为另一目标基调的缩放值，并根据缩放值进行相位补偿。 音调移位器根据缩放值对由相位补偿的频率分量进行的快速傅里叶逆变换得到的音频数据进行音调缩放。 因此，生成表示目标基调的音频数据。

公开(公告)号：US07102068B2

公开(公告)日：2006-09-05

申请号：US11016294

申请日：2004-12-17

申请人： Toru Kitayama

发明人： Toru Kitayama

IPC分类号： G10H7/12

CPC分类号： G10H1/42 ,  G10H1/057 ,  G10H1/125 ,  G10H2210/381

摘要： Filtering is performed on original waveform to remove components of a predetermined frequency band from the waveform, and dividing positions of the original waveform data are determined on the basis of envelope levels of the filtered waveform. The dividing positions may be determined on the basis of differentiation of an envelope of the filtered waveform. Rise positions in the original waveform data are detected, and one rise position may be selected from among one or more rise positions detected within a predetermined range of the original waveform and extracted as a dividing position of the original waveform. Presumed beat positions in the original waveform may be detected, and rise positions of the original waveform may be detected within predetermined ranges corresponding to the presumed beat positions. In parallel with reproduction of automatic performance, waveform data are stored in memory along with synchronization control data indicative of relationship in processing timing between the automatic performance and the waveform data.

公开(公告)号：US6137044A

公开(公告)日：2000-10-24

申请号：US404679

申请日：1999-09-23

申请人： Pierre Guilmette ,  Serge Didier Glories

发明人： Pierre Guilmette ,  Serge Didier Glories

IPC分类号： G10H7/08 ,  G10H7/12 ,  G10H7/10

CPC分类号： G10H7/12

摘要： During a succession of working cycles, a sound synthesizer system for obtaining at an output a series of electrical samples produces first level samples from zero level samples which can come from diverse sources. The samples are produced allowing for parameters such as the frequency, amplitude, phase or a filter coefficient. All of the data used in establishing samples is processed in cells materialized by locations of a plurality of memories. The content of the cells can evolve from one working cycle to the other and data calculation means are used on a timesharing basis for all the cells. The first level samples can be selectively combined to form second level samples before they are transferred to an output.

摘要翻译： 在连续的工作循环中，用于在输出端获得一系列电气样本的声音合成器系统从零电平采样产生可以来自不同来源的第一级采样。 产生样品，允许诸如频率，幅度，相位或滤波器系数的参数。 用于建立样本的所有数据在由多个存储器的位置实现的单元中进行处理。 单元的内容可以从一个工作周期发展到另一个工作周期，并且在所有单元的分时基础上使用数据计算装置。 在将第一级样品转移到输出之前，可以选择性地组合第一级样品以形成第二级样品。