using prototype waveform decomposition or prototype waveform interpolative [PWI] coders

Full Title

Speech or audio signal 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 > using predictive techniques > Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters > using prototype waveform decomposition or prototype waveform interpolative [PWI] coders

Classification Context

Section:

PHYSICS

Class:

MUSICAL INSTRUMENTS; ACOUSTICS

Subclass:

SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING