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)

Child Classifications

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• G10L 25/03 characterised by the type of extracted parameters since 2013 IPC+CPC Available in IPC and CPC
• G10L 25/27 characterised by the analysis technique since 2013 IPC+CPC Available in IPC and CPC
• G10L 25/45 characterised by the type of analysis window since 2013 IPC+CPC Available in IPC and CPC
• G10L 25/48 specially adapted for particular use since 2013 IPC+CPC Available in IPC and CPC
• G10L 25/75 for modelling vocal tract parameters since 2013 IPC+CPC Available in IPC and CPC
• G10L 25/78 Detection of presence or absence of voice signals (switching of direction of transmission by voice frequency in two-way loud-speaking telephone systems H04M9/10) since 2013 +1 CPC IPC+CPC Available in IPC and CPC
• G10L 25/90 Pitch determination of speech signals since 2013 +2 CPC IPC+CPC Available in IPC and CPC
• G10L 25/93 Discriminating between voiced and unvoiced parts of speech signals (G10L25/90 takes precedence) since 2013 +3 CPC IPC+CPC Available in IPC and CPC