Data Representation - How Computers Represent Sound (GCSE Computing)

The following is a GCSE Computing test covering 'Data Representation - How Computers Represent Sound'

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Question 1

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What does dynamic range in digital audio refer to?

According to the Nyquist theorem, what is the highest frequency that can be accurately sampled?

What is the effect of increasing bit depth while keeping sample rate constant?

How is aliasing usually prevented before analogue-to-digital conversion?

In digital audio, what is a "sample"?

Why are anti-aliasing filters typically low-pass filters?

What is quantisation error (quantisation noise) in digital audio?

What does audio bit rate measure?

What is quantisation in the context of digital audio?

What is the file size in bytes for 1 second of mono audio sampled at 8 kHz with 8-bit samples (uncompressed)?

Which unit measures the frequency of a sound wave?

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