Bruce Firstly, thank you for the new plug-in, looking forward to trying it out, once i het it working. And a special thanks for the information about the level of 'W' being a little 'hot' I did some quick tests of a couple of albums and after reducing 'W' by 3db before feeding into your earlier B-Format to Square Wigware decoder and the results were certainly sounding more like what was originally promised of the system back in the day. Could this be oe of the reasons why the system neber impressed people if this error was never caught when the harware was developed? Cheers
I've released a classic UHJ to square/rectangle decoder which can be found at: https://www.brucewiggins.co.uk/?p=1836 It can also pass out B-format with or without shelf filtering applied. It's a JS effect, so Reaper is the ideal platform (there is a JSFX VST that should work on other DAWs, too). It implements both the shelf filters and forward preference controls as suggested in: Gerzon, M.A., 1985. Ambisonics in multichannel broadcasting and video. *Journal of the Audio Engineering Society*, *33*(11), pp.859-871. As an aside, looking through the old papers, it looks to me that the UHJ equations actually result in a W signal that's 3dB hotter than the SF mic standard (i.e. AmbiX gains!). Looking at the wireless world articles also suggests this (B format input to a unit that implements UHJ applied 3dB boost to W before decoding). cheers Bruce On Thu, 24 Feb 2022, 23:16 surround surround, <surro...@cox.net> wrote: > I have retired my Onkyo SV-909 receiver with a UHJ decoder after many > years of service. Over the years I have transferred my LP and CD surround > recordings decoded into multichannel flac files for playback on a computer > based system. I did manage to do a couple UHJ recordings using the Onkyo a > while back but wondered if their might be a computer based solution. > > > I am currently using Reaper as my DAW. I did a search for Ambsonic VST > plug-ins and found The Ambisonic Toolkit for Reaper. I played with that but > found that that The UHJ decoding it could do was from UHJ W,X,Y,Z to stereo > and what I am looking for is UHJ stereo to a speaker feed. I really do not > need the ability to adjust to different 4 channel layouts like the Onkyo > provided and could just live with a square. > > > I could be I simply missed something in the ATK as maybe a signal chain > that could provide the decoding I need to convert my old CD's and LP'sbut > thought why not see if the knowledge base here might be aware of a solution > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://mail.music.vt.edu/mailman/private/sursound/attachments/20220224/f19c2505/attachment.htm > > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > edit account or options, view archives and so on. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20220304/b0c63703/attachment.htm> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20220305/c4c84af8/attachment.htm> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
