On > Message: 4 > Date: Mon, 22 Aug 2011 16:16:08 +0100 > From: "Richard" <zoanne...@yahoo.co.uk> > Subject: Re: [Sursound] Questions regarding a very early 'Ambisonic' > LP > To: "Surround Sound discussion group" <sursound@music.vt.edu> > Message-ID: <5E69167FE4FB4878AA81D91F3BCC8108@richardc7363d4> > Content-Type: text/plain; charset="iso-8859-1" > > Thanks for the reply. this gets more and more interesting, doesn't it. I > thought the NRDC were responsible for the introduction of UHJ/Ambisonics, but > then I could be wrong. Am very hazy about what happened when I'm afraid. > > I'd really like to get to the bottom of this, really because I'd like to hear > it decoded. > > If you'd like I can scan the relevant parts of the cover for you, it does > state 'Ambisonics' a couple of times. But then, your mention of BMX could > possibly point the way. > > Still haven't been able to contact Calrec who produced the album. > > Now, if it is BMX then it should be decodable in the same way I decode QS > (and SQ) as QS was based on RM > >
1 it is unlikely to be BMX 2 AFAIK all the guys at Calrec who might have known about it are dead. 3 It is possible that it is 45J 4 Not having any info about the record sleeve, ie. who it is playing, where it is, who engineered it, makes it rather guesswork! 5 If the BBC were involved it could be BBC HJ 6 But if it was from a SFM then it is more likely to be UHJ as the BBC encoders for B-format were actually UHJ. You may be able to tell which by measuring the centre front phase shift for a centre front source, if there is one. UHJ gives you about 35 degrees phase shift. Guess what 45j gives you. Geoffrey _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
