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Phonetics image - Coggle Diagram

- - - - is that branch of phonetics concerned with the perception of speech sounds, i.e. with how they are heard.
        
        1st step – when sound
        waves arrive at the ear.
        
        2nd step – transmission of
        sound along the auditory
        nerve to the brain
    - - is the study of the way the vocal organs are used to produce speech sounds
        
        The number of vocal organs varies with languages: there are speech sounds that do not use an air-stream from the lungs (non-pulmonic sounds, e.g. clicks tut tut or tsk tsk)
        
        Tongue
        
        High / mid / low
        
        Front / center / back
        
        Vowel quadrilateral
    - - the study of the physical properties of speech sounds such as frequency and amplitude in their transmission.
        
        Variation in air pressure
        
        Displacement of eardrum
        
        Frequency
        
        Pitch
        
        Amplitude
        
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