A Computer-Controlled Audio Mixing System for Video Post-Production

Craig J. Birkmaier

The availability of multiple high-quality audio tracks on the current generation of professional video recorders, and the ability to distribute video programs with stereo audio, through broadcast, cable, and home VCRs, is changing our perception of the importance of audio in video productions. This article examines the development of a microprocessor-controlled audio mixing system for use in video post-production. The audio mixer can be controlled by a video editing system or follow the operation of a video switcher using a variety of serial interface protocols. System integration in large facilities is achieved through control of an audio switching matrix for the routing of audio sources to the mixer.

Print ISSN
Published
1991-09
Content type
Original Research
DOI
10.5594/J02453