Patent classifications
G
PHYSICS
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G10
MUSICAL INSTRUMENTS; ACOUSTICS
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G10H
ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
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2250/00
Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
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G10H2250/131
Mathematical functions for musical analysis, processing, synthesis or composition
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G10H2250/215
Transforms, i.e. mathematical transforms into domains appropriate for musical signal processing, coding or compression
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G10H2250/221
Cosine transform; DCT [discrete cosine transform], e.g. for use in lossy audio compression such as MP3
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