SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION (sound input/output for computers G06F 3/16; digital data processing methods or equipment specially adapted for handling natural language data G06F 17/20; teaching or communicating with the blind, deaf or mute G09B 21/00; telephonic communication H04M)
| Subclass | Title |
|---|---|
| 11/00 | Determination or detection of speech or audio characteristics not restricted to a single one of groups G10L 15/00-G10L 21/00 |
| 11/02 | Determination or detection of speech or audio characteristics not restricted to a single one of groups G10L 15/00-G10L 21/00 Detection of presence or absence of speech signals |
| 11/04 | Determination or detection of speech or audio characteristics not restricted to a single one of groups G10L 15/00-G10L 21/00 Pitch determination of speech signals |
| 11/06 | Determination or detection of speech or audio characteristics not restricted to a single one of groups G10L 15/00-G10L 21/00 Discriminating between voiced and unvoiced parts of speech signals (G10L 11/04 takes precedence) |
| 13/00 | Speech synthesis; Text to speech systems |
| 13/02 | Speech synthesis; Text to speech systems Methods for producing synthetic speech; Speech synthesisers |
| 13/04 | Speech synthesis; Text to speech systems Methods for producing synthetic speech; Speech synthesisers Details of speech synthesis systems, e.g. synthesiser structure or memory management |
| 13/06 | Speech synthesis; Text to speech systems Elementary speech units used in speech synthesisers; Concatenation rules |
| 13/08 | Speech synthesis; Text to speech systems Text analysis or generation of parameters for speech synthesis out of text, e.g. grapheme to phoneme translation, prosody generation or stress or intonation determination |
| 15/00 | Speech recognition (G10L 17/00 takes precedence) |
| 15/02 | Speech recognition (G10L 17/00 takes precedence) Feature extraction for speech recognition; Selection of recognition unit |
| 15/04 | Speech recognition (G10L 17/00 takes precedence) Segmentation or word limit detection |
| 15/06 | Speech recognition (G10L 17/00 takes precedence) Creation of reference templates; Training of speech recognition systems, e.g. adaptation to the characteristics of the speaker's voice (G10L 15/14 takes precedence) |
| 15/08 | Speech recognition (G10L 17/00 takes precedence) Speech classification or search |
| 15/10 | Speech recognition (G10L 17/00 takes precedence) Speech classification or search using distance or distortion measures between unknown speech and reference templates |
| 15/12 | Speech recognition (G10L 17/00 takes precedence) Speech classification or search using dynamic programming techniques, e.g. Dynamic Time Warping [DTW] |
| 15/14 | Speech recognition (G10L 17/00 takes precedence) Speech classification or search using statistical models, e.g. Hidden Markov Models [HMM] (G10L 15/18 takes precedence) |
| 15/16 | Speech recognition (G10L 17/00 takes precedence) Speech classification or search using artificial neural networks |
| 15/18 | Speech recognition (G10L 17/00 takes precedence) Speech classification or search using natural language modelling |
| 15/20 | Speech recognition (G10L 17/00 takes precedence) Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise or of stress induced speech (G10L 21/02 takes precedence) |
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