ha ha ha, now let me guess...... 45? LOL The album was released on Calrec's own label, scans available to download:
http://hotfile.com/dl/127545446/741abae/AS1_Cover.rar.html I did a quick recording of a track and looked at the waveform with the Spectral Phase Display in Audition and there was no noticeable phase shift like you see in say, Matrix H. In fact, it looks very much like UHJ, or an early form of it. Unless this is how 45J would also look like. So, I guess it brings me back to the question, how best to decode it. If it's 45J, is it possible to do? or if it's the early version of UHJ (Pre-1980) where the Y signal also had the 90 degree phase shift added, any ideas if it's possible to accurately decode it, or will I just have to use the standard way and accept the compromise? On another point, I feel this record need archiving, not only because it's an early Ambisonic release, but also because of the subject manner. thanks to everyone who has helped me with this so far, Richard 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 ----- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1392 / Virus Database: 1520/3849 - Release Date: 08/21/11 -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20110822/220ff0e9/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
