Envelope-controlled dynamic layering of audio signal processing and synthesis for music applications
First Claim
1. A method for processing audio signals, comprising:
- receiving an incoming audio signal;
producing an envelope signal responsive to said incoming audio signal; and
processing said envelope signal according to a parameterized transformation of said envelope signal to generate a plurality of control signals.
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Accused Products
Abstract
Parallel operations on the amplitude envelope of a single-channel or multiple-channel electronic instrument or vocal signal may be used to control rich layered audio signal processing and/or audio synthesis environments. The controllable layered audio signal processing and audio synthesis environments may comprise dedicated or shared processor and synthesis elements, respectively, though use of pre-mixing and merging operations. Detection operations performed on the envelope of an applied audio signal may include level detection operations, rate sign (i.e., level increasing versus decreasing) detection operations, and rate magnitude detection operations. These operations may control rich layered audio signal processing environments and/or audio synthesis environments directly, while other embodiments may incorporate the use of state machines in the control chain. The applied audio signal may be pre-processed by signal processing before application to envelope detection, and combinations of such envelopes may be used. Hysteretic effects may be invoked across increasing and decreasing variation in envelope parameters.
200 Citations
40 Claims
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1. A method for processing audio signals, comprising:
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receiving an incoming audio signal;
producing an envelope signal responsive to said incoming audio signal; and
processing said envelope signal according to a parameterized transformation of said envelope signal to generate a plurality of control signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A system for processing audio signals, comprising:
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an envelope detector for producing an envelope signal responsive to an incoming audio signal; and
a processor for processing said envelope signal according to a parameterized transformation of said envelope signal, said processor responsively generating a plurality of control signals.
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40. A system for processing audio signals, comprising:
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means for receiving an incoming audio signal;
means for producing an envelope signal responsive to said incoming audio signal; and
means for processing said envelope signal according to a parameterized transformation of said envelope signal, said processing means responsively generating a plurality of control signals.
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Specification