Method for automatic sound synthesis
AssigneeInternational Business Machines Corporation
InventorSteven R. Abrams
Life of this patent
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Abstract
A method for automatically adjusting the parameters of a synthesizer includes generating a first synthesized signal based on an initial set of synthesizer parameters, comparing the first synthesized signal to an input sound signal, and generating a control signal for adjusting a subset of parameters of the synthesizer to minimize the differences between the first synthesized signal and the input sound signal. These steps may be iteratively performed for a predetermined number of additional subsets of synthesizer parameters, until a final output of the synthesizer is obtained which represents an optimization of the synthesis of the input sound signal.
Claims22
A method for controlling a synthesizer, comprising:
- (a) obtaining a sound signal;
- (b) deriving a first synthesized signal from the synthesizer based on an initial set of parameters of the synthesizer;
- (c) comparing the first synthesized signal to the sound signal to derive an error signal indicative of a difference between the first synthesized signal and the sound signal;
- (d) generating a control signal, based on said error signal, for adjusting a first group of parameters of the synthesizer to reduce the difference between the first synthesized signal and the sound signal, said first group of parameters being at least a subset of the initial set of parameters;
- and
- (e) deriving a second synthesized signal from the synthesizer based on at least said first group of parameters as adjusted by the control signal in step (d), said second synthesized signal being a more accurate synthesis of the sound signal than said first synthesized signal.
Dependencies are inferred from the claim text.