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    • 6. 发明申请
    • A SYSTEM AND A METHOD FOR SIMULATION OF ACOUSTIC FEEDBACK
    • 一种用于模拟声学反馈的系统和方法
    • WO2006054943A1
    • 2006-05-26
    • PCT/SE2005/001722
    • 2005-11-16
    • SOFTUBE ABGUSTAFSSON, Fredrik
    • GUSTAFSSON, Fredrik
    • G10H3/26G10H3/18
    • G10H3/26G10H1/125G10H5/007G10H2250/521G10H2250/531
    • The invention describes an apparatus for software or hardware emulation of acoustic feedback effects. The invention comprises an analog to digital interface (200) for the input, whose output is summed (202) with a feedback of this digital signal passing through an amplifier model (204), a room acoustics model (206) and a string model (210). The summed signal (202) is converted from digital to analog (205) and can then be connected to a standard amplifier. The room acoustic model comprises a volume control (208) where the degree of feedback is controlled, while the string model contains a model (212) of which harmonics to feed back, and finally an algorithm (214) that decides which fundamental frequencies that the incoming digital signal contains.
    • 本发明描述了一种用于声学反馈效应的软件或硬件仿真的装置。 本发明包括用于输入的模拟数字接口(200),其输出与通过放大器模型(204)的该数字信号的反馈,房间声学模型(206)和弦模型(202)相加 210)。 加法信号(202)从数字转换成模拟(205),然后可以连接到标准放大器。 房间声学模型包括其中控制反馈程度的音量控制(208),而弦模型包含其中要反馈的谐波的模型(212),最后是一种算法(214),其确定哪个基频 输入数字信号包含。
    • 10. 发明申请
    • SOUND SYNTHESIS MODEL INCORPORATING SYMPATHETIC VIBRATIONS OF STRINGS
    • 声音合成模型包含声带的同步振动
    • WO1995006936A1
    • 1995-03-09
    • PCT/US1994009892
    • 1994-09-01
    • MEDIA VISION, INC.
    • MEDIA VISION, INC.COLVIN, Bryan, J., Sr.COOK, Perry, R.
    • G10H01/02
    • G10H5/007G10H2210/271G10H2250/441G10H2250/521
    • Synthesizer models for emulating musical instruments are improved to take into account sympathetic string vibrations. One embodiment of the present invention scales an output signal from a sound synthesis model (220) and uses the scaled signal as an input signal for a number of single-string emulators (201-212) causing the single-string emulators to produce sound signals corresponding to sympathetic string vibrations. The output signals from the synthesis model (220) and from all of the single-string emulators (201-212) are added together. Another embodiment employs an octave's worth of single-string emulators to emulate the lower strings of an emulated instrument. Still another embodiment is a synthesizer which includes an input bus (220A) for accepting a sound signal, scaling means (244), a plurality of single-string emulators, and means for summing output signals from the string emulators. Embodiments preferably employ waveguide synthesis or the plucked string model to emulate single strings.
    • 用于仿真乐器的合成器模型得到改进,以考虑到同情弦的振动。 本发明的一个实施例对来自声音合成模型(220)的输出信号进行缩放,并且将缩放的信号用作多个单串模拟器(201-212)的输入信号,从而使单串模拟器产生声音信号 对应于交感神经刺激。 来自合成模型(220)和所有单串模拟器(201-212)的输出信号被加在一起。 另一个实施例使用八度音阶的单串仿真器来模拟仿真乐器的较低弦。 另一个实施例是一种合成器,其包括用于接收声音信号的输入总线(220A),缩放装置(244),多个单串仿真器,以及用于对来自串式仿真器的输出信号求和的装置。 实施例优选地采用波导合成或采摘串模型来模拟单个串。