AES Store

Journal Forum

Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
10 comments

Reflecting on Reflections - June 2014
1 comment

Quiet Thoughts on a Deafening Problem - May 2014
1 comment

Access Journal Forum

AES E-Library

Recording Techniques for SQ Matrix Quadraphonic Discs

This paper reports on advances in the art of mastering and editing quadraphonic records using the SQ matrix code [1]. In addition to the basic code, modulations for optimum side splits and diagonal splits are defined, adn encoder circuits are illustrated for producing these special effects. Further, code variations described in the paper include -acroperiphony,- or the reproduction of elevated sounds, and -extra stereophony,- or a method of -folding- the back channels in the stereophonic presentation to spread their images toward and beyond the confines of the loudspeakers. The described variations are encompassed within the scope of the SQ code and are accurately decoded with all SQ decoders. These encoding refinements have led to the design of a -position encoder- which provides all the prescribed modulation forms and which can readily be integrated into a mixing console. An Appendix offers a comparative study between an SQ quadraphonic matrix Standard and another matrix Standard called Regular Matrix (-RM-), which have been adopted by the Japan Phonograph Record Association.

Authors:
Affiliation:
JAES Volume 21 Issue 1 pp. 19-26; February 1973
Publication Date:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society