Sound Waves and Timbre - PowerPoint PPT Presentation

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Sound Waves and Timbre

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A sound wave is a vibrating object which creates a disturbance in a medium ... vocal chords of a person. the vibrating string and sound board of a guitar or violin ... – PowerPoint PPT presentation

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Title: Sound Waves and Timbre


1
Sound Waves and Timbre
  • Carla Piper, Ed. D.
  • Music Lesson Activities

2
Vibrations
  • A sound wave is a vibrating object which creates
    a disturbance in a medium
  • The particles of the medium through which the
    sound moves is vibrating in a back and forth
    motion at a given frequency.

3
Frequencies
  • The frequency of a wave refers to how often the
    particles of the medium vibrate when a wave
    passes through the medium. 
  • vocal chords of a person
  • the vibrating string and sound board of a guitar
    or violin
  • the vibrating tines of a tuning fork
  • the vibrating diaphragm of a radio speaker
  • The harmonic overtone series natural
    mathematical relationships in frequencies

4
Timbre
  • The quality or timbre of the sound produced by a
    vibrating object is dependent upon the natural
    frequencies of the sound waves produced by the
    objects.
  • Pure tones Single frequency (flute)
  • Complex tones - Tuba
  • set of frequencies in mathematical relationships
  • the harmonic overtone series
  • Noise number of frequencies

5
Recording Sound Waves
  • Computer sound recorders allow you to record and
    edit sound.
  • You get a visual image of the sound wave.

6
Airplane
Click on image to play!
7
Telephone
Click on image to play!
8
Clock
Click on image to play!
9
Bell
Click on image to play!
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