What causes the so called night effect
1 Inside The larynx there are two flaps of muscle which are called the vocal or folds
vocal cords.
2 The space Between them is known as the glottis.
-wide Glottis /p/ /f/ /s/
- narrow Glottis /h/
-vocal Folds’ vibration
-tigtitly Closed ? -when we cough
Producing sounds air---stop the flow of air—move to Articulators—produce release
3 When they Are tightly closed they can be made to produce a glottal stop.
4 When they Are close together and air is passed between them, the resulting vibration is Called voicing or phonation.
5 Three Variables in this vibration that are relevant in speech are: intensity: high/low levels, frequency amount Vibration/regularity, quality whispering/breathy.
1 When a Word is written with phonetic
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