G10L 19/18 Vocoders using multiple modes
Introduced: January 2013
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 > Vocoder architecture > Vocoders using multiple modes
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 > Vocoder architecture > Vocoders using multiple modes
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 19/20 using sound class specific coding, hybrid encoders or object based coding since 2013 IPC+CPC Available in IPC and CPC
- G10L 19/22 Mode decision, i.e. based on audio signal content versus external parameters since 2013 IPC+CPC Available in IPC and CPC
- G10L 19/24 Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding since 2013 IPC+CPC Available in IPC and CPC