Fons, Thank you; that's very informative. It would seem to me, with my simplistic ways of thinking, that this method of detecting UHJ would depend on there being a preponderance of data being associated with a center image. Indeed, being able to see a group or cloud of data in the graph depends on one direction being dominant. But in practice it works. Does this explain why the second instance, using the Midas Studios string quartet recording, has a different phase offset?
I did something similar but using a completely different and cruder tool set to analyze the Enya recordings from the albums "Enya" and "Watermark" and couldn't see any signs of UHJ encoding. I had to select, by ear, the times in the recording where there was a strong center image. Eric ________________________________ From: Fons Adriaensen <f...@linuxaudio.org> To: sursound@music.vt.edu Sent: Thursday, November 7, 2013 8:05 AM Subject: Re: [Sursound] UHJ disc discovery? On Tue, Nov 05, 2013 at 12:32:33AM +0000, Fons Adriaensen wrote: > On Mon, Nov 04, 2013 at 05:03:29PM -0700, Mark Anderson wrote: > > > I have often wondered if there was a way to confirm matrix encoding by using > > a scope to display phase differences, but have found that not to be the case > > It should be possible to do that, but the process will be a bit more > complicated. Having a spare moment I decided to just try something simple. Results here: <http://kokkinizita.linuxaudio.org/ambisonics/uhjtest/index.html> Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20131107/89977803/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
