https://worldradiohistory.com/Archi...ng-Engineer/70s/Recording-1973-12.pdf#page=26^^^
The Sansui QS "Mono Broadcast" mode is
a decoder function, whereby a 90° right
channel phase shift is used to obtain a
mono signal that maintains 360° signal
content to within 3 dB
Maybe the people involved with the Quark project could implement this mode to offer a mono compatible downmix of QS (as a separate music data file or streaming file), the QS mono broadcast mode doesn't require modifying the quad mix to be more mono compatible.
Kirk Bayne
The Sansui QS "Mono Broadcast" mode is
a decoder function, whereby a 90° right
channel phase shift is used to obtain a
mono signal that maintains 360° signal
content to within 3 dB
Maybe the people involved with the Quark project could implement this mode to offer a mono compatible downmix of QS (as a separate music data file or streaming file), the QS mono broadcast mode doesn't require modifying the quad mix to be more mono compatible.
Kirk Bayne