Содержание
- 2. INTRODUCTION Language is the ability to express one’s thoughts by means of a set of signs,
- 3. Speech Speech is major component of a language Oldest means of communication Levels of speech: 1.
- 4. Perfect TTS Synthesizer Human beings The reading process involves: Seeing, Thinking, Saying, Hearing These are most
- 5. TTS Synthesizer System A text to speech synthesizer is a computer based system that should be
- 6. Feature and Multilevel Data Structures Plays an important role in contemporary TTS systems for Natural Language
- 9. Typical TTS Components Two components Natural Language Processing Module (NLP) Digital Signal Processing Module (DSP)
- 11. NLP and DSP Modules The NLP module is capable of producing a phonetic transcription of the
- 12. NLP Module of typical TTS system Text Analyzer (Morpho Syntactic Analysis) Pre-processor Morphological Analyzer Contextual Analyzer
- 15. Preprocessor Takes in texts as strings of ASCII characters Transforms text into Broad Segmentation Units (BSU’s)
- 16. Preprocessor Sentence end detection (semicolon, period – ratio, time and decimal point, sentence ending respectively) Abbreviations
- 17. Morphological Analysis Task is to propose all possible parts of speech categories to each word taken
- 18. Function Words Function words (determiners, pronouns, prepositions, conjunctions..). Can be stored in a lexicon to get
- 19. Content Words Content words- infinite in number Needs Morphology – part of linguistics that describes word
- 20. Contextual Analysis Considers words in their context Reduces the list of their parts of speech categories
- 21. Letter to Sound Module LTS module is responsible for the automatic determination of the phonetic transciption
- 22. Letter to Sound Module Some of the cases to consider Consonants may be reduced or deleted
- 23. Two Basic Strategies Dictionary based and Rule-based
- 24. Dictionary Based Dictionary based consist of storing a maximum of phonological knowledge into a lexicon and
- 25. Rule Based Rule based strategy which transfers most of the phonological competence of dictionaries into a
- 26. Dictionary based and Rule based
- 27. Morpho-Phonemic Module in Dictionary based Morphophonology is concerned with phonological changes in the pronunciation of morphemes
- 28. Morpho-Phonemic Module in Dictionary based This module deals with the phonological changes and one distinguishes the
- 29. LTS Transducer This is the key component that transforms graphemes to phones in the rule based
- 30. Phonetic Post Processing In order to increase the intelligibility and the naturalness of synthetic speech, some
- 31. Syntactic Prosodic Parser Prosody refers to certain properties of the speech signal which are related to
- 33. Syntactic Prosodic parser Getting a speech with all those features is impossible. Focuses on obtaining an
- 34. Syntactic Prosodic Parser These prosodic groups are achieved by a recent very crude algorithm termed as
- 35. DSP Module Takes in the narrow phonetic transcription and gives out speech as output
- 36. Why we need TTS system There are several advantages of a high quality text to speech
- 38. Скачать презентацию