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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G10L19/12
the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
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G10L19/135
Vector sum excited linear prediction [VSELP]
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