The Unified SQ surround-sound recording and broadcasting system (USQ) is a combination of technologies with the objective of spanning the present and the future requirements of the art of surround-sound reproduction. The present-day 4-2-4 SQ matrix system has been found by the FCC Laboratories (Project No. 2710-1) to surpass in quadraphonic listening all other matrix system tested, and to be preferred by the listeners to the four-channel master tape (summed pairwise) and to all other matrix codes for stereophonic and monophonic compatibility. Therefore, if commercial demand were to arise for higher-order surround-sound systems, SQ would be the matrix of choice for the basebands of future 4-2, 5-4, 4-3-4, or 4-4-4 FM broadcast transmitters. Orderly means for assembling this heirarchy are described. Projecting other possibilities, it is shown that 1) a modified-with-logic 4-3-4 system offers potential advantages. 2) A -diamond- 4-3-4 decoding configuration in combination with the square or rectangular loudspeaker arrangement may lead to 4-3-6 or 4-3-8 surround-sound loudspeaker arrays with superior hemispheric perception. 3) SQ quadraphonic synthesis is capable of converting the existing libraries of stereo records to the sourround-sound reproduction mode. 4) Applications of SQ-coded signals to -Kuntzkopfstereophonie--or -dummy head listening- (JAES, 24, 5, 387, June 1976) offers a further intriguing possibility. And, not to slight those who by choice or necessity require the use of spatial (coincident, intensity) microphone systems, it is shown that the SQ GHENT Microphone System (JAES 26, 1/2, 2-11, Jan./Feb. 1978) can be modified by addition of a T-function so as to operate successfully in either the 0-2-4 or the 0-3-4 modes compatibly with all the SQ decoder configurations.
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can
subscribe to this RSS feed.
Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.
