NON-LINEAR TONE GENERATOR
A method and apparatus for producing a tone (e.g. for music) without use of a waveform memory and using a feedback loop. The feedback loop includes a waveform generator which calculates, in real time, a parabolic approximation to a sine wave. The feedback loop includes a delay phase differencer to e...
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Main Author | |
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Format | Patent |
Language | English French German |
Published |
07.04.1999
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | A method and apparatus for producing a tone (e.g. for music) without use of a waveform memory and using a feedback loop. The feedback loop includes a waveform generator which calculates, in real time, a parabolic approximation to a sine wave. The feedback loop includes a delay phase differencer to eliminate hunting. The output waveform from the feedback loop is provided to a sine function generator which approximates a sine value using a third order polynomial, to provide the output tone. |
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Bibliography: | Application Number: EP19960941317 |