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公开(公告)号：US4513650A
公开(公告)日：1985-04-30
申请号：US482918
申请日：1983-04-07
CPC分类号： G10H1/20
摘要： In a keyboard instrument having white and black keys, the necessity for a player to depress black (sharp or flat) keys is eliminated by circuitry which memorizes which tones are to be automatically sharped or flatted when a corresponding white key is depressed.
摘要翻译： 在具有白色和黑色键的键盘乐器中，玩家按下黑色（锐利或平坦）键的必要性通过存储当相应的白键被按下时自动锐化或平坦化的音调的电路消除。
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公开(公告)号：US4515057A
公开(公告)日：1985-05-07
申请号：US458477
申请日：1983-01-17
摘要： An electronic musical instrument having a keyboard has a sound wave-shape generating circuit comprised of a pitch ROM connected to the keyboard. A first selector is connected to the keyboard, and a second selector is connected to the pitch ROM. A drum rhythm sound pitch data generating circuit and a pitch forming circuit are each connected to the first and second selectors. A wave-shape memory and a noise rhythm sound forming circuit are each connected to the pitch forming circuit. A third selector is connected to the wave-shape memory and the noise rhythm sound forming circuit. An envelope counter is connected to the third selector and the output of the envelope counter is fed to an audio amplifier. In use, a play/rhythm switching signal is selectively applied to the first, second and third selectors so that both a drum rhythm sound and a noise rhythm sound can be generated using only the one wave-shape memory.
摘要翻译： 具有键盘的电子乐器具有由连接到键盘的音高ROM构成的声波形状发生电路。 第一选择器连接到键盘，第二选择器连接到音调ROM。 鼓节奏声音数据产生电路和音调形成电路各自连接到第一和第二选择器。 波形存储器和噪声节奏声音形成电路各自连接到音调形成电路。 第三选择器连接到波形存储器和噪声节奏声音形成电路。 信封计数器连接到第三选择器，并且包络计数器的输出被馈送到音频放大器。 在使用中，选择性地将播放/节奏切换信号施加到第一，第二和第三选择器，使得仅使用一个波形存储器可以产生鼓节奏声音和噪声节奏声音。
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公开(公告)号：US4497235A
公开(公告)日：1985-02-05
申请号：US463138
申请日：1983-02-02
摘要： An electronic musical instrument in which a plurality of musical waveforms are obtained by a time-sharing style of multi-channels according to key data input from a keyboard. A wave-shape memory memorizes a plurality of wave-shape data representative of basic one cycle waveforms of different musical wave shapes. A musical instrument selecting circuit designates the a kind of wave-shape for each of the channels which is to be read out from the wave-shape memory, and a sound effect selecting circuit designates the kind of effect of each of the channels. A pitch forming circuit generates pitch data for reading of the wave-shape memory in each of the channels according to the key data and output data from the sound effect selecting circuit.
摘要翻译： 一种电子乐器，其中根据从键盘输入的键数据，通过多声道的分时风格获得多个音乐波形。 波形存储器存储表示不同音乐波形的基本一周期波形的多个波形数据。 乐器选择电路为从波形存储器读出的每个声道指定一种波形，并且声音选择电路指定每个声道的效果的种类。 音调形成电路根据键数据和来自声音效果选择电路的输出数据产生用于读取每个声道中的波形存储器的音调数据。
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