Lesson 8 - Sound

This presentation explains how sound is digitally stored and processed by computers. It begins by defining key terms like amplitude, frequency, sample rate, and sample resolution, which are crucial for understanding sound properties. The text details the analogue-to-digital conversion process, outlining how continuous sound waves are transformed into discrete binary data through sampling, quantisation, and encoding. Furthermore, it explores the factors affecting audio quality, such as sampling rate and bit depth, and provides formulas for calculating audio file size. Finally, the document touches upon sound compression techniques, like those used in MP3s, to manage file sizes while maintaining perceived quality.