IPC Subgroup
G10L 19/125 Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
Introduced: January 2013
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 > the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders > Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
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