Well, thanks for the reply, and it does bring up a question, but firstly, I
guess if I scan this album cover and label, then upload it to Hotfile then
anyone can have a peek. I'll post the link here.
So, i'll give it a try using the programs I've at hand to decode UHJ, not so
sure about 'G format' though.
Now, I'm very interested in what you mentioned about decoding Matrix H. This,
to me, seemed a very messy matrix system.
Could you possibly explain a little more on how you decode Matrix H as 'G
Format' and what is the Meridian application. Is it similar to the 'Blue
Ripple' UHJ - B-Format converter?
Sorry for all the questions, still on a steep learning curve here
Richard
On 22/08/2011 16:02, Dave Malham wrote:
I would think that the only people
> around who are really likely to know for certain are Geoffrey Barton,
> Peter Carbines or Peter Craven - pretty well everyone else has gone...
I've just checked the remaining UHJ vinyls I have, although I don't
recall this LP at all. Certainly, it was never mentioned in my dealings
with the NRDC and I had several meetings at their Victoria Street
offices in London from around 1975 onwards.
If it is in one of the 'early' 2-channel encodes, why not try a
'G-format' transcode to a horizontal layout? I've found this works
perfectly well for a simple 4 square(-ish) set up, using
my archive recordings of Matrix H, and HJ, bearing in mind no-one is
likely to know the original layout of performers at the recording venue.
The only thing I ever noticed when decoding H/HJ using the Meridian
application which allows for B-format and UHJ input, is an apparent
rotation of between 15-30 degrees leftward. Not knowing the original
layout as recorded, I judged the shift by reference to images which I
/assumed/ should have been centre front. It was easy enough to skew my
listening seat towards the left until the surround effect sounded 'correct'.
Of course, if the LP is a UHJ encode, a G-format transcode should give
excellent results. I've found that digital transcodes give better
results than playing the original 2-channel UHJ source through a 1982
basic UHJ decoder (a pre-production prototype for the Aiwa/Boots
ambisonic micro-system).
--
Peter Carbines
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