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EnglandMusic TechnologyQuick questions
The principles of sound
Quick questions on Sampling rate and bit depth: how audio is digitised - Edexcel A-Level Music Technology
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is aliasing?Show answer
Aliasing is why you cannot just sample slowly and hope for the best, and why digital synthesis and sample-rate conversion must be done carefully. The filter is the safeguard that keeps the captured band clean.
What is q1?Show answer
State the Nyquist theorem in one sentence. [1 mark]
What is q2?Show answer
A signal contains frequencies up to kHz. Find the minimum sampling rate. [2 marks]
What is q3?Show answer
State the approximate dynamic range of a -bit recording. [2 marks]
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