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

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Presentation transcript:

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

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.

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

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

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

Airplane Click on image to play!

Telephone Click on image to play!

Clock Click on image to play!

Bell Click on image to play!