专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1995006936A1 SOUND SYNTHESIS MODEL INCORPORATING SYMPATHETIC VIBRATIONS OF STRINGS 审中-公开
标题翻译：声音合成模型包含声带的同步振动
公开(公告)号：WO1995006936A1
公开(公告)日：1995-03-09
申请号：PCT/US1994009892
申请日：1994-09-01
申请人： MEDIA VISION, INC.
发明人： MEDIA VISION, INC. , COLVIN, Bryan, J., Sr. , COOK, Perry, R.
IPC分类号： G10H01/02
CPC分类号： G10H5/007 , G10H2210/271 , G10H2250/441 , G10H2250/521
摘要： 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.
摘要翻译：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。

2. 发明申请

WO1995027940A1 ECONOMICAL GENERATION OF EXPONENTIAL AND PSEUDO-EXPONENTIAL DECAY FUNCTIONS IN DIGITAL HARDWARE 审中-公开
标题翻译：数字硬件中的经典和伪指数衰减函数的经济生成
公开(公告)号：WO1995027940A1
公开(公告)日：1995-10-19
申请号：PCT/US1995004356
申请日：1995-04-06
申请人： MEDIA VISION, INC.
发明人： MEDIA VISION, INC. , COOK, Perry, R. , COLVIN, Bryan, J., Sr.
IPC分类号： G06F07/556
CPC分类号： G06F7/556 , G10H1/0575 , G10H7/12
摘要： Exponential and pseudo-exponential decay function values are generated by scaling a fractional decrease per sampling period by a previous decay function value and then subtracting the scaled fractional decrease from the previous decay function value. In one embodiment, a multiplier multiplies the fractional decrease by the previous decay function value and provides a product signal representing the scaled fractional decrease. An adder subtracts the scaled fractional decrease from the previous decay function value. In another embodiment, a shift block replaces the multiplier and approximates multiplication by a binary shift of the fractional decrease. The size of the shift is determined by the previous magnitude of the decay function as indicated by a priority encoder. Shifting generates a pseudo-exponential decay function which is suitable for music synthesis and can be generated quickly using less expensive hardware.
摘要翻译：指数和伪指数衰减函数值是通过以前一个衰减函数值缩放每个采样周期的分数下降，然后从前一个衰减函数值中减去缩放的分数下降来生成的。在一个实施例中，乘法器将分数减小乘以先前衰减函数值，并提供表示缩放分数下降的乘积信号。加法器从前一个衰减函数值中减去缩放的分数下降。在另一个实施例中，移位块代替乘法器并通过分数减小的二进制移位近似乘法。移位的大小由优先级编码器指示的衰减函数的先前幅度确定。移位产生适合于音乐合成的伪指数衰减函数，可以使用较便宜的硬件快速生成。

3. 发明申请

WO1995027939A1 MUSICAL INSTRUMENT SIMULATION PROCESSOR 审中-公开
标题翻译：音乐仪器模拟处理器
公开(公告)号：WO1995027939A1
公开(公告)日：1995-10-19
申请号：PCT/US1995004354
申请日：1995-04-06
申请人： MEDIA VISION, INC.
发明人： MEDIA VISION, INC. , COLVIN, Bryan, J., Sr. , GOCHNAUER, Daniel, B. , COOK, Perry, R.
IPC分类号： G06F07/38
CPC分类号： G10H7/004 , G06F15/7857 , G10H2250/211
摘要： A self-contained fully programmable digital signal processor (100) has two processors (101, 102) sharing, in parallel interleave fashion, a math unit (103) such as a multiply-and-accumulate circuit. A background processor (102) controls an external dram and preprocesses the information for a foreground processor (101). On-chip sram (107, 110) stores program parameters for both the foreground and background processors and facilitate information transfer between the foreground and background processors. The sram is time-multiplexed to permit access by the foreground processor, the background processor, and external devices without the expense of multiport sram. Flip-flops maintain data signals to the math unit while the sram is being accessed. The foreground processor has a custom instruction set that optimizes the implementation of complex music synthesis filter structures. An on-chip white noise generator quickly provides pseudorandom data for some of the instructions.
摘要翻译：独立的完全可编程数字信号处理器（100）具有以并行交错方式共享诸如乘法和累加电路的数学单元（103）的两个处理器（101,102）。背景处理器（102）控制外部电视并预处理前景处理器（101）的信息。片上sram（107,110）存储前台和后台处理器的程序参数，并促进前台和后台处理器之间的信息传输。 sram被时分复用以允许前台处理器，后台处理器和外部设备的访问，而不需要多端口sram的费用。触发器在访问sram时将数据信号保留到数学单元。前台处理器具有自定义指令集，可以优化复杂音乐合成滤波器结构的实现。片上白噪声发生器可以快速提供某些指令的伪随机数据。

4. 发明申请

WO1995006859A1 RESIDUAL EXCITED WAVE GUIDE 审中-公开
标题翻译：残余波导指南
公开(公告)号：WO1995006859A1
公开(公告)日：1995-03-09
申请号：PCT/US1994009887
申请日：1994-09-01
申请人： MEDIA VISION, INC.
发明人： MEDIA VISION, INC. , COLVIN, Bryan, J., Sr. , COOK, Perry, R. , GOCHNAUER, Daniel
IPC分类号： G01H01/12
CPC分类号： G10H1/057 , G10H1/125
摘要： Synthesizer models for emulating musical instruments can be improved using an analysis model that compares the output signal (Y') of the model to a recording (S) of a desired sound and derives a residual signal (delta) that can be used to correct the model. When the original model is a good one, the residual signal is small and takes much less memory to store than is required for a sampled sound.
摘要翻译：可以使用将模型的输出信号（Y'）与期望声音的记录（S）进行比较的分析模型来改进用于模拟乐器的合成器模型，并且导出可用于校正乐谱的残差信号（delta）模型。当原始模型是好的时候，剩余信号很小，并且比采样声音需要的存储空间要少得多。

5. 发明公开

EP0753190A1 SOUND SYNTHESIS MODEL INCORPORATING SYMPATHETIC VIBRATIONS OF STRINGS 失效
标题翻译： TONSYNTHESEMODELL与集成弦共振振动
公开(公告)号：EP0753190A1
公开(公告)日：1997-01-15
申请号：EP94927319.0
申请日：1994-09-01
申请人： MEDIA VISION, INC.
发明人： COLVIN, Bryan, J., Sr. , COOK, Perry, R.
IPC分类号： G10H7 , G10H5
CPC分类号： G10H5/007 , G10H2210/271 , G10H2250/441 , G10H2250/521
摘要： 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.

6. 发明公开

EP0717871A1 RESIDUAL EXCITED WAVE GUIDE 失效
标题翻译： REST信号激励波导
公开(公告)号：EP0717871A1
公开(公告)日：1996-06-26
申请号：EP94931271.0
申请日：1994-09-01
申请人： MEDIA VISION, INC.
发明人： COLVIN, Bryan, J., Sr. , COOK, Perry, R. , GOCHNAUER, Daniel
IPC分类号： G10H7 , G10H1
CPC分类号： G10H1/057 , G10H1/125
摘要： Synthesizer models for emulating musical instruments can be improved using an analysis model that compares the output signal (Y') of the model to a recording (S) of a desired sound and derives a residual signal (delta) that can be used to correct the model. When the original model is a good one, the residual signal is small and takes much less memory to store than is required for a sampled sound.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式