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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Which unit measures the frequency of a sound wave?

In digital audio, what is a "sample"?

Which sample rate is standard for audio on audio CDs?

Which unit is used to measure the sample rate of digital audio?

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

What is quantisation in the context of digital audio?

What does MIDI store compared to sampled digital audio?

Which of the following is a lossless audio format commonly used for compressed audio?

Which statement correctly contrasts lossy and lossless audio compression?

What does audio bit rate measure?

What does bit depth (bits per sample) determine in digital audio?

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