What is sound? To fully understand synthesisers, synthesis and samplers, we need to be familiar with the characteristics o...
What is sound? <ul><li>Sound is the sensation we perceive  when vibrations in the air are detected by our ears. </li></ul>...
What is sound? <ul><li>These 3 main characteristics are termed: </li></ul><ul><ul><li>Pitch </li></ul></ul><ul><ul><li>Tim...
The 3 main characteristics of sound: <ul><li>1.  Pitch </li></ul><ul><li>Pitch is determined by Frequency </li></ul><ul><l...
The 3 main characteristics of sound: <ul><li>2. Timbre </li></ul><ul><li>Timbre means ‘tonal characteristics’. </li></ul><...
The 3 main characteristics of sound: <ul><li>3. Amplitude </li></ul><ul><li>Amplitude is the loudness or volume of a sound...
The 3 main characteristics of sound <ul><ul><li>Pitch, Timbre and Amplitude are the fundamental elements to understanding ...
Pitch <ul><li>Sounds can be:  </li></ul><ul><ul><li>low in pitch - like a bass guitar  </li></ul></ul><ul><ul><li>high in ...
Timbre <ul><li>Sounds can be:  </li></ul><ul><ul><li>Pure sounding - like a flute  </li></ul></ul><ul><ul><li>Rich soundin...
Amplitude <ul><li>Sounds can be:  </li></ul><ul><ul><li>Quiet sounding - like a triangle  </li></ul></ul><ul><ul><li>Loud ...
Timbre, Pitch and Amplitude <ul><li>Over the coming weeks we will look at the different ways that synths allow you to chan...
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What Is Sound1.Ppt

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What Is Sound1.Ppt

  1. 1. What is sound? To fully understand synthesisers, synthesis and samplers, we need to be familiar with the characteristics of sound.
  2. 2. What is sound? <ul><li>Sound is the sensation we perceive when vibrations in the air are detected by our ears. </li></ul><ul><li>Our ears convert these vibrations to electrical impulses. </li></ul><ul><li>These impulses are transmitted to our brain via our nervous system. </li></ul><ul><li>Our brain then distinguishes its 3 main characteristics. </li></ul>
  3. 3. What is sound? <ul><li>These 3 main characteristics are termed: </li></ul><ul><ul><li>Pitch </li></ul></ul><ul><ul><li>Timbre </li></ul></ul><ul><ul><li>Amplitude </li></ul></ul>
  4. 4. The 3 main characteristics of sound: <ul><li>1. Pitch </li></ul><ul><li>Pitch is determined by Frequency </li></ul><ul><li>Frequency is measured in Hertz (Hz) </li></ul><ul><li>Human ears perceive a range of frequencies - generally given as ranging from 20 Hertz to 20,000 Hertz (abbreviated to 20 kilo Hertz, or 20 kHz) </li></ul>
  5. 5. The 3 main characteristics of sound: <ul><li>2. Timbre </li></ul><ul><li>Timbre means ‘tonal characteristics’. </li></ul><ul><li>We distinguish between different sounds according to their timbre. </li></ul><ul><li>A piano and a saxophone, both playing at the same pitch and level, still sound different - this is because they each have a different timbre. </li></ul><ul><li>Our voices also have different timbres. </li></ul><ul><li>Timbre is determined by the frequency content of a sound. </li></ul>
  6. 6. The 3 main characteristics of sound: <ul><li>3. Amplitude </li></ul><ul><li>Amplitude is the loudness or volume of a sound. </li></ul><ul><li>Amplitude is measured in Decibels (dB) </li></ul><ul><li>Humans can perceive amplitude levels ranging from: </li></ul><ul><li>0dB (a leaf falling on the grass) up to </li></ul><ul><li>120dB (standing 20 paces from a jet engine!) </li></ul>
  7. 7. The 3 main characteristics of sound <ul><ul><li>Pitch, Timbre and Amplitude are the fundamental elements to understanding what is going on when you are creating and manipulating sound. </li></ul></ul>
  8. 8. Pitch <ul><li>Sounds can be: </li></ul><ul><ul><li>low in pitch - like a bass guitar </li></ul></ul><ul><ul><li>high in pitch - like a crash cymbal </li></ul></ul><ul><ul><li>Or have a range of pitches - like a piano </li></ul></ul><ul><ul><li>Synths often have a keyboard - enabling you to play a tone at different musical pitches. </li></ul></ul>
  9. 9. Timbre <ul><li>Sounds can be: </li></ul><ul><ul><li>Pure sounding - like a flute </li></ul></ul><ul><ul><li>Rich sounding - like a string section </li></ul></ul><ul><ul><li>Musical sounding - like any musical instrument </li></ul></ul><ul><ul><li>Non-musical - like machinery noise </li></ul></ul><ul><ul><li>Synths have many controls - enabling you to create different musical (and non-musical) timbres. </li></ul></ul>
  10. 10. Amplitude <ul><li>Sounds can be: </li></ul><ul><ul><li>Quiet sounding - like a triangle </li></ul></ul><ul><ul><li>Loud sounding - like a bass drum </li></ul></ul><ul><ul><li>Or they may change in level over time </li></ul></ul><ul><ul><li>Synths have amplitude controls - enabling you to control how loud a sound is over time. </li></ul></ul>
  11. 11. Timbre, Pitch and Amplitude <ul><li>Over the coming weeks we will look at the different ways that synths allow you to change these 3 fundamental characteristics. </li></ul><ul><li>You will learn how to: </li></ul><ul><ul><li>Create and shape your own unique sounds </li></ul></ul><ul><ul><li>Use these sounds in your own music </li></ul></ul>
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