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PCE
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DIFF Subgroup
G10L 19/032

Quantisation or dequantisation of spectral components

Introduced: January 2013

Full Title

Full titles differ between systems:

IPC:

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 spectral analysis, e.g. transform vocoders or subband vocoders > Quantisation or dequantisation of spectral components

CPC:

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 spectral analysis, e.g. transform vocoders or subband vocoders > Quantisation or dequantisation of spectral components

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 2013.

Child Classifications

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  • G10L 19/035 Scalar quantisation since 2013 IPC+CPC Available in IPC and CPC
  • G10L 19/038 Vector quantisation, e.g. TwinVQ audio since 2013 IPC+CPC Available in IPC and CPC