DIFF Subgroup
G10L 25/90 Pitch determination of speech signals
Introduced: January 2013
Full Title
Full titles differ between systems:
IPC:
Speech or voice analysis techniques not restricted to a single one of groups > Pitch determination of speech signals
CPC:
Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 (muting semiconductor-based amplifiers when some special characteristics of a signal are sensed by a speech detector, e.g. sensing when no signal is present, H03G3/34) > Pitch determination of speech signals
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.
Child Classifications
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