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What we will do today

Learn how an oscilloscope displays electrical graphs and how changes in sound loudness and frequency affect the signal pattern. Discover the use of sound analysis in manipulating sound effects. Explore sound apps for voice alteration and the case of Bane's voice in Batman.

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What we will do today

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  1. What we will do today • State that an oscilloscope displays an electrical graph (drawing of waves). • Describe the effect on the signal pattern displayed on an oscilloscope due to a change in: - Loudness of sound - Frequency of sound • By recording and analysing sound signals, I can describe how they can be manipulated and used in sound engineering.

  2. Oscilloscope • An oscilloscope is a machine that can display sound signals in the form of wave patterns. • We can observe sound waves of different: - volume - frequency

  3. Changing volume Quiet noise Loud noise (low volume) (high volume)

  4. Changing frequency Low frequency high frequency (low pitch) (high pitch)

  5. 2009

  6. 2009

  7. 2011 Qu: 23

  8. Sound apps • Download some applications on your smart phone to enable you to change your voice. • Voice plus app – works well on iphone

  9. Bane - Batman • Tom Hardy plays Bane in Batman Dark Knight Rises. • His original voice had to altered after critics found it hard to understand when watching previews. • Sound engineers altered his voice for the final release in cinemas. • BANE OUTTAKES

  10. Sound Analysis • Sound engineers can alter the speed, frequency and volume (amplitude) of sounds to change their effects. • This is regularly used in the movie and music industries.

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