Representation of sound
I can describe how computers represent sound.
Representation of sound
I can describe how computers represent sound.
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Lesson details
Key learning points
- Sound is a pressure wave that causes the air to vibrate.
- A sound sample is a measure of a sound wave at a point in time.
- Samples of sound are digitised using a specified bit depth so they can be processed by a computer.
- Sample rate is a measure of the number of samples taken each second.
Keywords
Sample - the measurement of a sound wave at a point in time
Digitisation - converting data to a binary sequence
Bit depth - the number of bits used to represent a sample
Sample rate - the number of samples taken per second (measured in hertz)
Common misconception
The sample rate and bit depth of samples adjusts based on the sound that is being digitsed.
The digitsation of sound needs to be consistent so that the binary sequence represented can be processed as expected.
To help you plan your year 10 computer science lesson on: Representation of sound, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 computer science lesson on: Representation of sound, download all teaching resources for free and adapt to suit your pupils' needs.
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Explore more key stage 4 computer science lessons from the Representation of text, images and sound unit, dive into the full secondary computer science curriculum, or learn more about lesson planning.
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