Patent classifications
G
PHYSICS
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G10
MUSICAL INSTRUMENTS; ACOUSTICS
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G10L
SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
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19/00
Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
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G10L19/04
using predictive techniques
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G10L19/08
Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
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G10L19/087
using mixed excitation models, e.g. MELP, MBE, split band LPC or HVXC
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