Hi Yes, that's the album. Right, I'm clear on the G-Format now.
So, EMI used 45J? I thought they were solidly SQ until the end of the 70's. Thanks for the information Richard Sorry to come late to this party, I've been out of the country. I don't know the Calrec stuff at all well. There's Derrick Cantrell's Organ Recital at Hepstonall Parish Church, which I think was the first; catalogue number AS1 I think. If it's from 1974, then it could well be 45J. When I was at EMI (1976) we were still using 45J - I remember producing badges that said "45J - The Best Sounds Surround" and that would have been 1976-ish. You should be able to decode with any available UHJ decoder to suit your speaker array. Worst case I think you'll find the soundstage rotated a few degrees. By G-format, Peter C is talking about decoding to a square 4-speaker array, the default for creating a conventional multichannel disc from Ambisonic content without requiring the listener to have a decoder (ie you decode it for them to a configuration that will work for most real surround listening environments), see: http://ambisonic.net/pdf/ambisonics_around.pdf. (PDF, 950K) Peter also mentions the Meridian software decoder, which is not available. However there are plenty of software decoders available for download. Hope this helps, Best, -_Richard Elen On 09/08/2011 05:49, Richard wrote: > Hi all > > I have a couple of questions that I suspect may be hard to answer, and that is regarding the encoding of a LP I have. > > I bought this 'Ambisonic' LP in 1977, but it has a recording date of 25th March 1974. It is on the 'Calrec Audio Ltd' label and clearly states the involvement of the N.R.D.C > > Now the questions I have are: > > 1, If this is truly an early Ambisonic recording, could it be an early version of UHJ where Y= (0.3225 +- 0.00855j) instead of what is now used Y= (0.3277) > > 2, Would there be anyway of checking? > > 3, If it is, is it possible to accurately decode it? > > > Richard > > > I believe.... because nothing's impossible > > Dreaming-Spires: My home for people with 4 ears > http://the-quad-blog.blogspot.com/ > -------------- next part -------------- > An HTML attachment was scrubbed... > URL:<https://mail.music.vt.edu/mailman/private/sursound/attachments/20110809/6a60445e/attachment.html> > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound > > _______________________________________________ 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/a8d39b3e/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
