G10L 19/12 the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
Introduced: January 2000
Full Title
Full titles differ between systems:
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
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 (in musical instruments G10H) > 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
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 2013.
Child Classifications
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- G10L 19/125 Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP] since 2013 IPC+CPC Available in IPC and CPC
- G10L 19/135 Vector sum excited linear prediction [VSELP] since 2013 IPC+CPC Available in IPC and CPC