andy
5a94c5ff1a
Affected files: STEM/AI/Kalman Filter.md STEM/Signal Proc/Convolution.md STEM/Signal Proc/Image/Tracking.md STEM/Signal Proc/Pole-Zero.md STEM/Signal Proc/Transfer Function.md STEM/Speech/Linguistics/Consonants.md STEM/Speech/Linguistics/Linguistics.md STEM/Speech/Linguistics/README.md STEM/Speech/Linguistics/Terms.md STEM/Speech/Linguistics/Vowels.md STEM/Speech/NLP/Jargon.md STEM/Speech/NLP/NLP.md STEM/Speech/NLP/README.md STEM/Speech/NLP/Recognition.md STEM/Speech/Perception/Perception.md STEM/Speech/Perception/README.md STEM/Speech/Speech Processing/Applications.md STEM/Speech/Speech Processing/README.md STEM/Speech/Speech Processing/Source-Filter.md STEM/Speech/Speech Processing/Vocal Tract.md STEM/img/english-phoneme-table.png STEM/img/formant.png STEM/img/pole-zero-attenuation.png STEM/img/pole-zero-feedback.png STEM/img/pole-zero-stable.png STEM/img/roc-right-left.png STEM/img/roc-two-sided.png STEM/img/spectrum-vocal-tract.png STEM/img/transfer-stable-unstable.png STEM/img/vowel-chart.png STEM/img/vowel-spaces.png
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- Complete or partial closure of vocal tract
- Voiced/Unvoiced
Nasal
- Mouth closed and velum lowered
- Vowel-like structure, weaker energy
- Sound through nose
- English has only voiced nasals
- Can be identified by direction of formant movement
- m, n, ng
- Locations
- Labial
- Lips
- m
- Alveolar
- Palatal ridge
- n
- Velar
- Soft palate
- ng
- Labial
Plosive
- Closure which is released
- Voiced or unvoiced
- Based on when voicing starts
- t, d
- Trill
- Tap or flap
- Locations
- Labial
- Lips
- p, b
- Alveolar
- Palatal ridge
- t, d
- Velar
- Soft palate
- k, g
- Labial
Fricative
- Air forced through constriction
- Jet of turbulence
- Noisy
- Voiced
- v, z
- Unvoiced
- f, s
- Frequency cut-off
- Inversely proportional to length of cavity in front of constriction
- Sibilants
- Air forced over teeth
- s, z
- Affricate
- Abrupt start to frication
- Ch, J
Approximant
- Articulators move close, some perturbations
- Vowel-like structure, weaker energy
- Upward trajectory of formants
- r, y, l , w