This book is a dictionary that discusses about audio, radio and video. As with all rapidly developing technologies, audio, radio and video engineering have continually growing vocabularies. This dictionary not only provides clear definitions of all the terms now currently in use in the UK and USA but also explains many term in depth; ilustrations and extensive. Cross-references are included to assist the reader's understanding. The Author, R.S. Roberts, has spent many years teaching and writing on these subjects. One of the four appendices gives many commonly used abbreviations and acronyms. This dictionary is one of a set covering electrical and electronic engineering. //yn