ITMA09 Introduction To Digital Audio II

The document discusses digital audio and the process of converting analog audio signals to digital form. It covers key topics like: 1) How an analog-to-digital converter samples an audio signal at regular intervals to represent it as a series of binary numbers. 2) The Nyquist theorem which states the sampling rate must be greater than twice the highest frequency to avoid aliasing. 3) Standard sampling rates used in audio and how higher rates reduce aliasing artifacts. 4) The quantization process where sample amplitudes are assigned numeric values and the concept of bit depth and dynamic range. 5) How modern audio hardware can support high sampling rates and bit depths for improved quality.