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Sampling rate — AQA GCSE Computer Science Definition

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Computer Science
Key terms
Sampling rate

GCSE Computer Science · key term

Sampling rate

Definition

The number of sound samples taken per second, usually measured in hertz (Hz). One hertz means one sample per second.

Used by AQA

How each exam board covers it

AQA GCSE Computer Science · 8525

Paper 2

Sampling rate determines how frequently measurements are taken. Sample resolution determines how many bits are used to store each measurement. They control different aspects of the recording.
Revise: Sampling Rate and Resolution
The number of sound samples taken per second, measured in hertz (Hz).
Revise: Sound File Size Calculation

AQA Computer Science past papers

Exam tips

1
Define sampling rate as samples per second, not just the number of samples. Include Hz when giving its unit.
2
Use the sampling rate in hertz. For example, 44.1 kHz means 44,100 samples per second.

Related key terms

Sample
Sample resolution
Duration

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