800 Club - QQ All-Star
- Jul 5, 2010
Ovation advertised cassettes as being matrix.
This affected SQ a lot more than it affected QS.No actual experience myself but the editorial comments in the trade mags (High Fidelity and/or Audio and/or Stereo Review) was that the resulting phase errors from the decoding coupled with this mediums playback anomalies would not make for a stable listening experience.
True. Ovation did release EV- and QS-encoded cassettes, and even 8-track tapes. They also did discrete Q8's. Very few cassette decks could play these cassettes with good resultsOvation advertised cassettes as being matrix.
Azimuth IS ONE aspect of alignment, there is of course also head height. I suspect that if azimuth were off far enough to cause a big phase error, it would also be quite noticeable in the high-frequency losses, considering how slowly cassette tape moves. If the error were, say 10* at 20 kHz, that would only be 2.5* at 5 kHz, better tolerance than the phase shifters in most SQ decoders. SQ being a "phase matrix" (you KNOW Sansui is right!) with rear channels defined by phase shift alone, it may suffer more than QS would, not sure, though. I have recorded QS and "Stereo-4" onto cassette, and decoded it just fine. Mileage varies with deck and tape, I'm sure, I used a tired old Tascam 122 deck with less-than-master-grade cassettes.Care to enlighten us "the uneducated" ?
This only happened in the early days, before EMI publicly went single inventory for classical releases, hence the two different releases. Early SQ albums released in the UK used the pre-fix Q4 before the normal number.Earlier in this thread, others have said (or maybe assumed) that Angel SQ releases on vinyl were almost certainly SQ-encoded on cassette because of the existence of only an SQ master. But in a different thread (related to Andre Previn's version of '1812'), I was taught that EMI (including Angel & HMV) vinyl releases could be SQ in one country and plain stereo in another. I have recently been coming across cassettes from overseas (England, France, Germany) of EMI/Angel releases that were SQ in vinyl form, but don't (necessarily) indicate SQ on the cassette package. Assume SQ cassette? Assume stereo? Assume nothing? (Yes, I know how the word "assume" breaks down.) I just wondered if anyone has stumbled on this. I don't have an SQ decoder so I can't "invest & test" on my own.
True, but they got into it too late in the gameVery true, forgot that.
Decca did tip their toes into the quad forum in France, with a number of classical releases using QS. I have a few here, and the quality is just as you'd expect from them
Thanks for sharing this letter. I have (somewhere) classical issued CBS Cassettes that had the double ring on them just as the Quad Album had. Also, the Reel to Reel issues of Quad Albums I have obviously was the same recording. On the "Introduction to Quadraphonic Sound" the narrator talks about Quadraphonic tapes.I sent a letter to Columbia Records back in 1977 asking them.... if any SQ matrix cassettes have been released ?
This from Joe Dash Director Development Columbia Records U.S.A.
" To: Mr. D Galbraith"
-"We are not convinced of the technical capability of most cassette players to handle the difficult task of decoding matrixed cassettes.
Unless there's perfect head alignment the decode will be garbled. However , compare for yourself. Any single inventory SQ release (Masterworks or Broadway Shows) that has a cassette made will have the latter encoded in SQ since the same encoded tape is used to master the LP and the cassette .
Albeit we do not announce this fact."
Joseph F Dash
Re quad SQ cassettes