公开(公告)号：US5698807A

公开(公告)日：1997-12-16

申请号：US611014

申请日：1996-03-05

申请人： Dana C. Massie ,  David P. Rossum

发明人： Dana C. Massie ,  David P. Rossum

IPC分类号： G10H1/12 ,  G10H5/00 ,  G01H1/12 ,  G10L9/04 ,  G10L9/14

CPC分类号： G10H1/125 ,  G10H5/007 ,  G10H2210/066 ,  G10H2230/181 ,  G10H2230/241 ,  G10H2250/071 ,  G10H2250/075 ,  G10H2250/081 ,  G10H2250/125 ,  G10H2250/235 ,  G10H2250/251 ,  G10H2250/255 ,  G10H2250/445 ,  G10H2250/451 ,  G10H2250/491 ,  G10H2250/581 ,  Y10S84/09 ,  Y10S84/10

摘要： An electronic music system which imitates acoustic instruments addresses the problem wherein the audio spectrum of a a recorded note is entirely shifted in pitch by transposition. The consequence of this is that unnatural formant shifts occur, resulting in the phenomenon known in the industry as "munchkinization." The present invention eliminates munchkinization, thus allowing a substantially wider transposition range for a single recording. Also, the present invention allows even shorter recordings to be used for still further memory improvements. An analysis stage separates and stores the formant and excitation components of sounds from an instrument. On playback, either the formant component or the excitation component may be manipulated.

摘要翻译： 模拟声学仪器的电子音乐系统解决了一个问题，其中所记录的音符的音频频谱通过转置完全偏移。 这样做的结果是发生了不自然的共振变化，导致了业界已知的“混沌”现象。 本发明消除了复合，从而允许单个记录的基本更宽的转置范围。 此外，本发明允许将更短的记录用于进一步的存储器改进。 分析阶段分离和存储来自仪器的声音的共振峰和激发分量。 在播放时，可以操纵共振峰分量或激励分量。

公开(公告)号：US5943427A

公开(公告)日：1999-08-24

申请号：US425119

申请日：1995-04-21

申请人： Dana C. Massie ,  John D. Sun ,  Sol D. Friedman ,  William L. Martens ,  David P. Rossum

发明人： Dana C. Massie ,  John D. Sun ,  Sol D. Friedman ,  William L. Martens ,  David P. Rossum

IPC分类号： H04S1/00 ,  H04R5/00

CPC分类号： H04S1/007

摘要： A digital audio spatialization system that incorporates accurate synthesis of three-dimensional audio spatialization cues responsive to a desired simulated location and/or velocity of one or more emitters relative to a sound receiver. Cue synthesis may also simulate the location of one or more reflective surfaces in the receiver's simulated acoustic environment. The cue synthesis techniques are suitable for economical implementation in a personal computer add-on card.

摘要翻译： 一种数字音频空间化系统，其包含响应于相对于声音接收器的一个或多个发射器的期望的模拟位置和/或速度的三维音频空间化提示的精确合成。 提示合成还可以模拟接收机的模拟声学环境中的一个或多个反射表面的位置。 提示合成技术适用于个人计算机附加卡中的经济实施。

公开(公告)号：US5248845A

公开(公告)日：1993-09-28

申请号：US854554

申请日：1992-03-20

申请人： Dana C. Massie ,  David P. Rossum

发明人： Dana C. Massie ,  David P. Rossum

IPC分类号： G10H1/12 ,  G10H5/00

CPC分类号： G10H1/125 ,  G10H5/007 ,  G10H2210/066 ,  G10H2230/181 ,  G10H2230/241 ,  G10H2250/071 ,  G10H2250/075 ,  G10H2250/081 ,  G10H2250/125 ,  G10H2250/235 ,  G10H2250/251 ,  G10H2250/255 ,  G10H2250/445 ,  G10H2250/451 ,  G10H2250/491 ,  G10H2250/581 ,  Y10S84/09 ,  Y10S84/10

摘要： An electronic music system which imitates acoustic instruments addresses the problem wherein the audio spectrum of a a recorded note is entirely shifted in pitch by transposition. The consequence of this is that unnatural formant shifts occur, resulting in the phenomenon known in the industry as "munchkinization." The present invention eliminates munchkinization, thus allowing a substantially wider transposition range for a single recording. Also, the present invention allows even shorter recordings to be used for still further memory improvements. An analysis stage separates and stores the formant and excitation components of sounds from an instrument. On playback, either the formant component or the excitation component may be manipulated.

摘要翻译： 模仿声学仪器的电子音乐系统解决了一个问题，其中所记录的音符的音频频谱通过转置完全偏移。 这样做的结果是发生了不自然的共振变化，导致了业界已知的“混沌”现象。 本发明消除了复合，从而允许单个记录的基本更宽的转置范围。 此外，本发明允许将更短的记录用于进一步的存储器改进。 分析阶段分离和存储来自仪器的声音的共振峰和激发分量。 在播放时，可以操纵共振峰分量或激励分量。

公开(公告)号：US5748747A

公开(公告)日：1998-05-05

申请号：US838750

申请日：1997-04-09

申请人： Dana C. Massie

发明人： Dana C. Massie

IPC分类号： G10H1/16 ,  H03F1/32 ,  H03G5/00 ,  H03G3/00

CPC分类号： G10H1/16 ,  H03F1/3264 ,  H03G5/005

摘要： A digital audio signal processor for adding harmonic content to an input audio signal through a non-linear transfer function with discontinuities. The discontinuities are generated by bit shifting each input value by an amount dependent on the sign and magnitude of the input value. The amount by which the input value is shifted is roughly inversely related to the magnitude of the logarithm of the input value. The transfer function is fractal and so provides increased harmonic content for all signal amplitudes.

摘要翻译： 一种用于通过具有不连续性的非线性传递函数将谐波内容添加到输入音频信号的数字音频信号处理器。 通过将每个输入值移位一个取决于输入值的符号和幅度的量来产生不连续性。 输入值偏移的量与输入值的对数的大小成反比。 传递函数是分形的，因此为所有信号幅度提供增加的谐波含量。

公开(公告)号：US5524074A

公开(公告)日：1996-06-04

申请号：US905559

申请日：1992-06-29

申请人： Dana C. Massie

发明人： Dana C. Massie

IPC分类号： G10H1/16 ,  H03F1/32 ,  H03G5/00 ,  H03G3/00

CPC分类号： G10H1/16 ,  H03F1/3264 ,  H03G5/005

摘要： A digital audio signal processor for adding harmonic content to an input audio signal through a non-linear transfer function with discontinuities. The discontinuities are generated by bit shifting each input value by an amount dependent on the sign and magnitude of the input value. The amount by which the input value is shifted is roughly inversely related to the magnitude of the logarithm of the input value. The transfer function is fractal and so provides increased harmonic content for all signal amplitudes.

摘要翻译： 一种用于通过具有不连续性的非线性传递函数将谐波内容添加到输入音频信号的数字音频信号处理器。 通过将每个输入值移位一个取决于输入值的符号和幅度的量来产生不连续性。 输入值偏移的量与输入值的对数的大小成反比。 传递函数是分形的，因此为所有信号幅度提供增加的谐波含量。