Some basic concepts in representing sound as a digital signal, so that we can process it in the computer.
Going digital
When we digitise a natural audio signal, we are converting from the continuous analogue domain into the discrete digital domain.
Analysing signals that change over time
When a signal changes over time, as speech does, we need to analyse short sections of the signal one-by-one, not the whole signal at once.
Reading
Handbook of phonetic sciences – Ch 20 – Intro to Signal Processing for Speech
Written for a non-technical audience, this gently introduces some key concepts in speech signal processing.
