Music and Speech Perception

Music and Speech Perception - 11 11 Music Music and Speech...

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11 Music and Speech Perception Chapter 11 11 Music and Speech Perception • Music • Speech 11 Music Music as a way to express thoughts and emotions – Pythagoras: Numbers and musical intervals – Some clinical psychologists practice music therapy
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11 Music Musical notes – Sounds of music extend across frequency range: 25–4200 Hz. 11 Music Octave: The interval between two sound frequencies having ratio of 2:1 – Example: Middle C (C4) has fundamental frequency of 261.6 Hz; notes that are one octave from middle C are 130.8 (C3) and 523.2 (C5). – There is more to musical pitch than just frequency! 11 Music Tone height: A sound quality whereby a sound is heard to be of higher or lower pitch; monotonically related to frequency – Tone chroma: A sound quality shared by tones that have the same octave interval – Musical helix: Can help visualize musical pitch
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11 Music Musical instruments: Produce notes below 4 kHz. – Listeners: Great difficulty perceiving octave relationships between tones when one or both tones are greater than 5 kHz. 11 Music Chords: Created when three or more notes are played simultaneously – Consonant or dissonant – Consonant: Have simple ratios of note frequencies – Dissonant: Less elegant ratios of note frequencies 11 Music Cultural differences – Research on music perception: Western vs. Javanese – Javanese culture: Fewer notes within an octave; greater variation in note’s acceptable frequencies – Even young infants can learn to distinguish sounds in their native scale
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11 Music Melody: An arrangement of notes or chords in succession.
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