A World of Sounds Contents 1 Sounds 5

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A World of Sounds

A World of Sounds

Contents • 1. Sounds • 5. How we hear sounds. • 2. Wind Instruments

Contents • 1. Sounds • 5. How we hear sounds. • 2. Wind Instruments • 6. Brass Instruments • 3. String Instruments • 7. The violin • 4. Percussion Instruments • 8. Shake, rattle and roll. End Show

Sounds • Sounds are created by something vibrating (moving very fast). The vibrations set

Sounds • Sounds are created by something vibrating (moving very fast). The vibrations set up sound waves in the surrounding air. • Sounds move like waves in water but much faster. • Sound waves are detected by the air in the ears. • Instruments make sounds: Wind instruments String instruments Percussion Instruments

Wind Instruments • The player’s breath makes the sound in a wind instrument. •

Wind Instruments • The player’s breath makes the sound in a wind instrument. • The breath flows through or across a hole or an edge or causes a reed to vibrate.

String Instruments • String instruments use tightly stretched string or wire to make a

String Instruments • String instruments use tightly stretched string or wire to make a sound. • The player plucks hammers or strokes the string to make a sound.

Percussion Instruments • Percussion is the name given to instruments that create sound by

Percussion Instruments • Percussion is the name given to instruments that create sound by being scraped shaken hit or struck

How we hear sounds • Sound waves reach the outer ear and makes the

How we hear sounds • Sound waves reach the outer ear and makes the ear drum vibrate. • This makes 3 little bones move inside the inner ear. • The fluid in the snailshaped organ moves. • Tiny hair cells inside also detect the movements. • Signals are sent to the brain by the auditory nerve.

Brass Instruments • This is a trumpet. • A trumpet is a valved, wind

Brass Instruments • This is a trumpet. • A trumpet is a valved, wind instrument. • All notes in the trumpet’s range can be played using a combination of three valves. • Pressing on the valves changes the length of tubing that the air flows through. • The shorter the tube, the higher the note.

The violin • The violin is a string instrument. • A bow is used

The violin • The violin is a string instrument. • A bow is used to slide back and forth across the strings. • The player changes the pitch of the strings by holding his fingers against the strings. • The player can also pluck at the strings.

Shake, rattle and roll • These are all untuned percussion instruments. • The pitch

Shake, rattle and roll • These are all untuned percussion instruments. • The pitch cannot be altered. • A percussion player has to learn to play all kinds of instruments. • Evelyn Glennie is a famous percussionist. She ‘feels’ the sounds as she is deaf.

HEART SOUNDS INTRODUCTION Heart sounds are sounds producedHEART SOUNDS INTRODUCTION Heart sounds are sounds produced
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The Study of Speech Sounds Speech Sounds PHONETICSThe Study of Speech Sounds Speech Sounds PHONETICS
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