Data Storage & Compression (OCR GCSE Computer Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is sampling in digital sound representation?
What is sampling in digital sound representation?
Measuring amplitude at regular intervals
What property of a sound wave is measured during sampling?
What property of a sound wave is measured during sampling?
Amplitude (height)
What unit is used to measure sample rate?
What unit is used to measure sample rate?
Hertz (Hz)
What happens to playback quality when sample rate is higher?
What happens to playback quality when sample rate is higher?
It improves by capturing more detail
What is bit depth in sound recording?
What is bit depth in sound recording?
Number of bits to store each sample
What effect does higher bit depth have on a sound file?
What effect does higher bit depth have on a sound file?
Increases accuracy and file size
How does longer duration affect sound file size?
How does longer duration affect sound file size?
Increases file size
What is the formula for calculating sound file size?
What is the formula for calculating sound file size?
Bit Rate × Sample Frequency × Duration
Which factors increase the size of a sound file?
Which factors increase the size of a sound file?
Higher sample rate, bit depth & duration
What does bit rate refer to in sound files?
What does bit rate refer to in sound files?
Number of bits used to store each sample