Aims: To introduce the theory and practice of processing digital audio and video in multimedia applications.
Learning Outcomes:
After completion of the unit students should be able to: understand the basic principles of human auditory perception, and its influence on digital audio processing; understand current technologies for sampling, representation and reconstruction of audio information; understand and apply methods for digital audio compression; understand the representation of digital video signals; understand the operation of digital video compression techniques, including the relationship between system parameters and the quality of digital video.
Skills:
Theory and analysis of current techniques in digital audio and video taught facilitated and tested.
Content:
Digital Audio: Representation and analysis of audio in the spectral domain. Human Auditory Perception: temporal and frequency masking, critical bands. Speech and audio signals. Current digital audio technologies: quantisation, sampling, sample rate conversion. Audio Compression methods and standards. Digital Video: concepts and standards, broadcast requirements; compression techniques: transforms, quantizers and coders; key features of video compression standards; emerging technologies.
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