G10L SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
Introduced: September 1968
Description
G10L encompasses techniques for analyzing, synthesizing, and processing speech and audio signals, including speech recognition systems that identify and interpret spoken content, as well as voice processing methods such as speaker identification and emotion detection. This subclass also covers audio and speech coding/decoding technologies that compress and decompress voice data for transmission or storage, enabling efficient communication and multimedia applications. The classification includes acoustic feature extraction, signal processing algorithms, and computational methods applied to speech and voice signals, but excludes general audio signal processing unrelated to speech (covered under G10H and related classes) and non-acoustic speech analysis such as written text processing.
IPC and CPC are identically structured here. All 7 subcodes exist in both systems.
4 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2000.
Child Classifications
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- G10L 15/00 Speech recognition (G10L17/00 takes precedence) since 2000 +1 CPC IPC+CPC Available in IPC and CPC
- G10L 17/00 Speaker identification or verification techniques since 2000 IPC+CPC Available in IPC and CPC
- G10L 19/00 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) since 2000 +3 CPC IPC+CPC Available in IPC and CPC
- G10L 21/00 Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility (G10L19/00 takes precedence) since 2000 IPC+CPC Available in IPC and CPC
- G10L 25/00 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) since 2013 IPC+CPC Available in IPC and CPC
- G10L 99/00 Subject matter not provided for in other groups of this subclass since 2013 IPC+CPC Available in IPC and CPC