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公开(公告)号：EP0024108A3
公开(公告)日：1981-03-18
申请号：EP80302253
申请日：1980-07-03
IPC分类号： G10H01/057 , G10H07/00
CPC分类号： G10H1/0575 , G10H7/12
摘要： A tone generation system is intended for use with an electronic musical instrument of the type wherein an audible tone is generated electronically in response to actuation of the instrument by a player. The invention generates digital signals capable of defining either the waveshape or the envelope characteristic of a tone for each tone initiated by such player actuation, the amplitude thereof being varied in accordance with the intensity of the player actuation initiating that tone. To define the amplitude, digital electronic circuits (22) are utilized for developing a digital scaling signal corresponding to the intensity of actuation of the instrument by the player. Other digital circuits develop (10,18) a digital waveform segment signals which define portions of a composite waveform, as represented in an orthogonal coordinate system. Further digital circuits (24) arithmetically manipulate these scaling signals and waveform segment signals to give a composite output signal defining the envelope or waveform to be produced.
摘要翻译： 音调产生系统旨在与电子乐器一起使用，其中响应于玩家对乐器的致动而以电子方式产生可听音。 本发明产生数字信号，其能够定义由这种播放器致动发起的每个音调的波形或包络特征，其幅度根据播放器启动该音调的强度而变化。 为了定义幅度，数字电子电路（22）用于开发与播放器的仪器致动强度对应的数字缩放信号。 其他数字电路开发（10,18）数字波形段信号，其限定复合波形的部分，如在正交坐标系中所表示的。 另外的数字电路（24）以算术方式操纵这些缩放信号和波形段信号，以给出一个复合输出信号，其定义要产生的包络或波形。
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公开(公告)号：EP0042019A1
公开(公告)日：1981-12-23
申请号：EP80301980.1
申请日：1980-06-12
摘要： A programmable tone generator for an electronic musical instrument generates a pulse train output (F out) in which in each cycle the starting time and duration of each pulse is controlled, thereby to determine the harmonic content of the electronic waves that are converted to audio sound. A binary counter (12) serves as a time base for encoding each period of a tone signal waveform into plural outputs (14) in the form of a binary code. A plurality of programmable tone generation circuits (16) are coupled with selected counter outputs (14) to comprise plural tone signal branchs (16), each providing a tone signal at a selected fundamental frequency and having selected harmonic content. Each tone signal branch (16) includes a programmable variable code generator (26) and determines the initial content of the output waveform, subsequently either maintaining or changing the fundamental frequency and harmonic content thereof.
摘要翻译： 用于电子乐器的可编程乐音发生器产生脉冲串输出（F out），其中在每个周期中控制每个脉冲的开始时间和持续时间，从而确定转换成音频声音的电子波的谐波含量 。 二进制计数器（12）用作用于将音调信号波形的每个周期以二进制码的形式编码成多个输出（14）的时基。 多个可编程乐音发生电路（16）与所选择的计数器输出（14）耦合以包括多个音调信号分支（16），每个音调信号分支（16）以选定的基本频率提供音调信号并具有所选择的谐波含量。 每个音调信号分支（16）包括可编程可变码发生器（26），并确定输出波形的初始内容，随后维持或改变其基频和谐波含量。
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公开(公告)号：EP0024108A2
公开(公告)日：1981-02-25
申请号：EP80302253.2
申请日：1980-07-03
CPC分类号： G10H1/0575 , G10H7/12
摘要： A tone generation system is intended for use with an electronic musical instrument of the type wherein an audible tone is generated electronically in response to actuation of the instrument by a player. The invention generates digital signals capable of defining either the waveshape or the envelope characteristic of a tone for each tone initiated by such player actuation, the amplitude thereof being varied in accordance with the intensity of the player actuation initiating that tone. To define the amplitude, digital electronic circuits (22) are utilized for developing a digital scaling signal corresponding to the intensity of actuation of the instrument by the player. Other digital circuits develop (10,18) a digital waveform segment signals which define portions of a composite waveform, as represented in an orthogonal coordinate system. Further digital circuits (24) arithmetically manipulate these scaling signals and waveform segment signals to give a composite output signal defining the envelope or waveform to be produced.
摘要翻译： 音调产生系统旨在与电子乐器一起使用，其中响应于玩家对乐器的致动而以电子方式产生可听音。 本发明产生数字信号，其能够定义由这种播放器致动发起的每个音调的波形或包络特征，其幅度根据播放器启动该音调的强度而变化。 为了定义幅度，数字电子电路（22）用于开发与播放器的仪器致动强度对应的数字缩放信号。 其他数字电路开发（10,18）数字波形段信号，其限定复合波形的部分，如在正交坐标系中所表示的。 另外的数字电路（24）以算术方式操纵这些缩放信号和波形段信号，以给出一个复合输出信号，其定义要产生的包络或波形。
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