The Return of “Captain Beyond”

1 Jul

This is a “heads-up” for those who may be unaware of the third “Quad Blog” in this little group.

The good Captain has been out of it for over a year due to health issues, but he has just announced that he will be continuing the release of Quadraphonic albums in the near future.

So, if you’ve not visited his site yet, best nip over to ‘The Captains Wormhole’ to see what had gone before, and sign up to be told when the new releases start.

The link is on the right hand-side here, happy hunting.



Continuing With A Couple Of Classicals

15 Jun

Here are two previously unreleased (blog-wise) classical albums, being somewhat different in style and mix. The “Stokowski” is a QSd2 decode, whilst the “Georg Muffat” is an SQd2 decode


Replacement Calvin Keys QS Title

2 Jun

My apologises for those that suffered with the incorrect audio on the DTS and AC-3 streams on the title, please re-download this corrected version.

…Continuing the test releases with: SQ

27 May


As mentioned in the previous release, the SQd decoding process had a minor upgrade, but the improvements in correcting the rear right issue although small, proved significant. To this end i’m releasing the following six albums:

Mike Oldfield – Tubular Bells (QV2001)

Before the Quadraphonic remix box-set “Boxed”, which contained the quad version of Tubular Bells that most are familiar with nowadays, Virgin released a stand-alone Quad version that was an up-mix from the standard stereo mix, although there was an additional added at the end of side two, a short recording of a model plane being flown in the studio. This is the only true quadraphonic track on the album. It is what it is.


Mike Oldfield – Exposed

And from Mr Oldfield’s first quad album to his last. Originally released on a two LP’s, this release was only ever released in Quad, no stereo version exists. Sourced from the HDCD release, it was decoded to 20-bit then decoded to four channel.


Lee Michaels – Nice Day For Something

An album i don’t remember ever seeing this made available anywhere


San Fernando Brass – The New Brass Sound Of The Hits


The Taj-Mahal Travelers – July 15,1972


Peter Nero – Summer Of ’42

The vinyl transfer used for this decode/release was kindly supplied by “Romanotrax”


Popol Vuh – Aguirre

Released as proof that many of Popol Vuh’s album were released in quad



More What’s,Whys And Wherefores of Decoding, And Three QS “Test” Releases

9 May

Since closing both blogs last year, I’ve spent some time doing some improvement work on all of the matrix decode process’s, one ending up quite a major upgrade and the others a small, but essential, alteration.

At around the time of the blogs closure, Owen made an off-the-cuff remark that it was a shame i hadn’t spent as much time on QS as I had done on SQ. He was correct, of course, my personal dislike of QS, and my preference for SQ, showed in my work and the number of releases (especially in the early days). So began my final work on the decoding process’s for the DY/EV-4, QS & SQ matrices.

The upgrade to the QS process (QS2d) is quite marked, ending up nothing like earlier, or other, versions. I “believe” that finally a QS decode can now hold it’s head up against that of an SQ (SQd2) decode in terms of separation, image stability and low level detail.

Those eagle-eyed amongst you may have noticed the upgrade to the SQ decoding process. The upgrade is solely devoted to solving a previously unknown error in the decoding process in decoders based on the official CBS/Sony specs.

I will admit that there is the possibility that many may not notice much of a difference between an SQd1 and SQd2 decode of the same album, it’s partly down to whether you listen, or you . But the improvement is there, none the less, solidifying the overall image like never before.

As mentioned, this upgrade corrects an error in the original decoding mathematics as developed by Ben Bauer, and is inherent in all “official” decoders (be it discreet or based on the Motorola chip set) that introduces a phase error of around 25 degrees on the rear right during the decode process.

If the mathematics of the whole decoding process are checked, all appears correct, but as any engineer who has been in the electronics field for long enough will attest, there are times that unpredictable things happen when it comes to the practicalities of a working model.

My work, and conclusions, were checked not only by using my decoding processes but by the decoded output from a Tate decoder, which showed exactly the same error.

The answer to the question “Why didn’t they see the issue at the time” is simply that they just didn’t have the tools we have today. Many of the tools we take for granted now could probably never even be imagined of back then.

At last SQ is capable of delivering the kind of performance that Ben Baur knew it was capable of, delivering a phase accurate representation of the original master.

Having been able to overcome this long standing issue, I believe that the best, and only worth-while (to date), SQ decoder (The Tate) can be improved by modifying it so it can comply with the above (new) standard, which would not only deliver a better decode, but the logic section should be able to operate more efficiently, or as it was meant too, producing better image stability with less pumping artefacts, etc.

DY/EV-4 decoding has also¬†been tweaked, although it’s impossible to make major in-roads when it come to decoding these two pre-phase matrices, simply because they are just too darned basic.

As a demonstration of QSd2 I’m making available the following three albums, which luckily have two different types of mixes. These are the “Four To The Wall” type that gives an artificial presentation much loved by the majority of quadraholics, and the “Live In The Studio” mix, more often than not, used by jazz labels which attempts to create how things were in the studio when the album was recorded live.


Due to an issue with DTS and Dolby Digital audio, this is now reissued

A Heads Up…..

30 Oct

This is just a mention (for those that don’t keep a weather eye on the blogs) that a planned series of Quadraphonic live recordings have started to be made available over on the SACD-to-DVDA resurected blog.



15 Aug

It’s obvious I’m wasting my time in attempting to impart some information needed to work on the quadraphonic matrices, so I might as well call it a day now.

The planned final two ‘special’ releases will not be released, because I just can’t be bothered.



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