図一覧

• A methodological hierarchy of Computer-Assisted Pronunciation Training
• Illustrative relationship between theoretical basis of phonetics and our target fields
• Places of articulation
• Japanese vowel diagrams
• Speech waveform, pitch, power and LPC spectrum plots
• Structure of speech recognition methods for the CAPL system
• Forward pass recursion in HMM
• Backward pass recursion in HMM
• Deriving in the Forward-Backward Algorithm
• A schematic of a left-to-right HMM
• HMM trellis and the Viterbi path
• Pair-Wise discrimination method
• Schematic diagram of the CAPL system
• Outlook for the CAPL system
• Auxiliary Tools of the CAPL system
• Relationship among a non-native speaker, a model speaker and speaker-independent phoneme models
• Block diagram of automatic pronunciation assessment
• Example of the user interface window for the visual representation module
• HMM scores for M-set
• Learners' average scores and local/global thresholds
• Learners' average scores and relative thresholds
• Agreement between automatic scoring and perceptual judgement
• Block diagram of automatic pronunciation instruction as part of the CAPL system
• loci of Japanese five basic vowels measured from the word utterances by native male speakers
• Spectrographical comparison between before-feedback and after-feedback
• An example of consonant feedback using articulatory configuration
• An example of consonant feedback based on Pair-Wise classifiers
• An example of vowel feedback by plotting on vowel diagram
• plots in the vowel diagram after feedback
• Block diagram of mora-timed speech rhythm training
• Decrease of mora length in proportion to number of mora
• Lengthening and shortening in mora position of two, three, four, and five mora words
• Means and standard deviations of duration for Japanese vowels and consonants
• Effect of context within CV mora and across V-C mora boundary in a CV coordinate system
• Deviation of a moraic obstruent for the preceding and following phonemes
• Deviation of a moraic nasal for the preceding and following phonemes
• Deviation of long vowels for the preceding and following manner of articulation
• Absolute measurement vs. relative measurement over segment durations
• Comparison between relative measurement and absolute measurement
• Rhythm patterns by Hard Template of 3-mora word
• Rhythm patterns by Soft Template of 3-mora word
• Rhythm patterns by Soft Template of 2-mora word
• Rhythm patterns by Soft Template of 4-mora word
• Speech rhythm error detection based on templates
• Example of user interface for training based on templates
• Example of user interface for training based on model speech.
• Improved speech rhythm of learner A for the [oqto] after self-feedback