The Fourier series can be applied as is to matrix 4-channel transmission, while the QS system employs it in a slightly modified form to improve compatibility with stereo playback. The paper explains differences between these two methods, then goes on to mathematically anayze the differences between so-called m-2 encoding and 4-2 encoding; Since QS is based on 4-2 encoding, this characteristic can be used, if necessary, to develop it into a 4-3-4 or 4-4-4 system. An actual circuit schematic of the QS encoder is also presented.

Authors: Ito, Ryosuke; Takahashi, Susumu
Affiliation: SANSUI ELECTRIC CO., LTD., TOKYO, JAPAN
AES Convention: 51 (May 1975) Paper Number: 1015
Publication Date: May 1, 1975 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=2418

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