Tracing the steps of a hiker through the altitude data that she transmits, learners will familiarise themselves with the basic concepts necessary for understanding any analogue to digital conversion: samples, sampling rate, and sample size.
The main goal is for learners to understand the ‘big picture’ of how sound is captured, digitised, manipulated, and reproduced in digital devices.
- Recall that sound is a wave
- Explain the function of microphones and speakers as components that capture and generate sound
- Define key terms such as ‘sample’, ‘sampling frequency/rate’, ‘sample size’
- Describe how sounds are represented as sequences of bits