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    • 1. 发明授权
    • Tone signal generating apparatus for performing a timbre change by
storing a full frequency band in a wave memory
    • 音频信号发生装置,用于通过将全频带存储在波形存储器中来执行音色变化
    • US5428183A
    • 1995-06-27
    • US168191
    • 1993-12-17
    • Eiji MatsudaHiroshi KitagawaGen IzumisawaJiro Tanaka
    • Eiji MatsudaHiroshi KitagawaGen IzumisawaJiro Tanaka
    • G10H1/053G10H1/12G10H7/02G10H7/08
    • G10H1/125G10H7/02Y10S84/09
    • A tone signal generating apparatus, including a memory for storing wave data containing frequency components within a full band; a tone generator for reading the wave data from the memory in accordance with key ON/OFF data to generate a tone signal; a velocity generator for generating a velocity value based on key ON/OFF data; a first coefficient processor for producing a first coefficient to control the amplitude in accordance with the velocity value generated by the velocity generator; a first operator for performing an operation on the first coefficient produced by the first coefficient processor and the tone signal generated by the tone generator, a filter for extracting frequency components within a specific band from the tone signal output from the first operator to produce a first tone signal and outputting the first tone signal; a second coefficient processor for producing a second coefficient to control the amplitude in accordance with the velocity value generated by the velocity generator; and a second operator for performing an operation on the second coefficient produced by the second coefficient processor and the tone signal produced by the tone generator to obtain a second tone signal and outputting the second tone signal.
    • 一种音频信号发生装置,包括用于存储包含全频段内的频率分量的波形数据的存储器; 一个乐音发生器,用于根据键ON / OFF数据从存储器中读出波形数据,以产生音调信号; 速度发生器,用于基于键ON / OFF数据产生速度值; 第一系数处理器,用于产生根据由速度发生器产生的速度值来控制幅度的第一系数; 用于对由第一系数处理器产生的第一系数和由乐音发生器产生的音调信号执行操作的第一操作器,用于从第一操作器输出的音调信号中提取特定频带内的频率分量的滤波器,以产生第一 并输出第一音调信号; 第二系数处理器,用于产生根据由速度发生器产生的速度值来控制振幅的第二系数; 以及第二运算器,用于对由第二系数处理器产生的第二系数和由乐音发生器产生的音调信号执行操作以获得第二音调信号并输出​​第二音调信号。
    • 3. 发明授权
    • Electronic musical instrument altering tone sound effects responsive to
number of channels or tone range
    • 电子乐器响应频道数量或音调范围改变音色效果
    • US5455380A
    • 1995-10-03
    • US165253
    • 1993-12-10
    • Eiji MatsudaGen Izumisawa
    • Eiji MatsudaGen Izumisawa
    • G10H1/00G10H1/053G10H1/46
    • G10H1/053G10H1/0091G10H2210/281Y10S84/26
    • An electronic musical instrument changes sound effects, such as resonance and reverberation, during a performance. The instrument has a tone-ON channel counter, for counting keys that are simultaneously depressed; an output channel determination unit, for determining an output channel in consonance with a count value held by the tone-ON channel counter; and an output channel selector, for designating the output channel, so as to provide a desired sound effect through the selected output channel.In a modification, the instrument has a parameter value determination unit, for determining a parameter value in consonance with a count value counted by the tone-ON channel counter; a resonant tone production unit, for adding a desired sound effect; and a controller, for employing the parameter value to control the resonant tone production unit.In a further modification, the instrument has an effect addition unit, for adding sound effects in consonance with a parameter value designated by the parameter value determination unit and the resonant tone production unit.
    • 电子乐器在表演期间改变声音效果,如共振和混响。 仪器有一个音调通道计数器,用于计数同时按下的键; 输出通道确定单元,用于根据由音调通道计数器保持的计数值来确定输出通道; 以及用于指定输出通道的输出通道选择器,以便通过所选择的输出通道提供期望的声音效果。 在修改中,仪器具有参数值确定单元,用于根据由tone-on通道计数器计数的计数值来确定参数值; 共振音产生单元,用于增加期望的声音效果; 以及控制器,用于采用参数值来控制共振音产生单元。 在进一步的修改中,仪器具有效果添加单元,用于根据由参数值确定单元和共鸣音产生单元指定的参数值来添加声音效果。