To add on top of the previous email, there are three then ( I didn t know about COMPASS), because Harpex can be a vst itself, which sounds magnificently good.
Regards Axel On Fri, 22 Feb 2019 at 07:52, Politis Archontis <archontis.poli...@aalto.fi> wrote: > Hi Wilson, > > First of all you have to understand the upmixing algorithms themselves > before starting implementing them. Some methods that can do that are > Directional Audio Coding (DirAC), which you can read all about in the > “Parametric Time-frequency Domain Spatial Audio” book of last year, and > numerous articles from AES journal and conferences. Then there is the > HARPEX method by Svein Berge for FOA signals, you can find the articles > online. Another option is the recent COMPASS method which can also upmix > second-order or 3rd-order if needed. Finally, an alternative is the sparse > recovery approach by Wabnitz, Jin and Epain, published mostly in IEEE > conferences. > > There are two plugins I know of offering this functionality at the moment, > one by Blue Ripple Sound that uses HARPEX, and one based on COMPASS by us, > which is to be released this month. In general if you have no previous > experience with the various parts of these methods, time-frequency > transforms, parameter estimation, adaptive filtering, maybe decorrelation, > and others.. expect to spend many months testing things till you manage to > get good audio quality. > > Best regards, > > Archontis Politis > > On 22 Feb 2019, at 03:37, Wilx Wilson <wilxson....@gmail.com<mailto: > wilxson....@gmail.com>> wrote: > > Hi Everyone, > > Not sure if I have missed a discussion about upmixing with ambisonics on > Sursound. > > Just wondering if anyone is willing to share some information on how to > implement upmixing algorithms from 1st Order Ambisonics A&B-format to 3rd > Order Ambisonics B-format. > > I am really curious to know on how they are implemented mathematically. > Because I am developing a prototype plugin for my research project. > > Have a good day! > > Much Obliged, > Wilson Lim > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://mail.music.vt.edu/mailman/private/sursound/attachments/20190222/c16a21c1/attachment.html > > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu<mailto: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/20190222/782f0c2f/attachment.html > > > _______________________________________________ > 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. > -- *Axel Drioli* *axeldrioli.com <http://axeldrioli.com/>* *For immersive recordings visit ImmersiveFieldRecording.com <http://immersivefieldrecording.com/>* *For Spatial Audio production visit SpatialAudioLabs.com <http://SpatialAudioLabs.com>* *Tel-Facetime: +44 7460 223640* *Skype: axel.drioli* *E-mail: a...@spatialaudiolabs.com <a...@spatialaudiolabs.com>* *Mostly LDN. UK.* -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20190222/037cb2c2/attachment.html> _______________________________________________ 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.
