Hi I'm Giuseppe from Rome, i apologize if my question could be trivial, but I have this problem in my mind to be solved.
If cardioid pattern is descrbed by equation: cardioid = 1/2 ( 1 + cos Theta) and W equation is: W = 1 / sqrt2 replacing numbers with letters the equation should be this: cardioid = 1/2 ( sqrt2 W + X ) but for Mid-Side decoding from B-Format, where M is the same cardioid component, I often find this equation: M = sqrt2 W + X WHY? [this is a question, not a strange ambisonic configuration :] Help me please! Thank you very much. Giuseppe Silvi On 11/mar/2012, at 17:00, sursound-requ...@music.vt.edu wrote: > Send Sursound mailing list submissions to > sursound@music.vt.edu > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.music.vt.edu/mailman/listinfo/sursound > or, via email, send a message with subject or body 'help' to > sursound-requ...@music.vt.edu > > You can reach the person managing the list at > sursound-ow...@music.vt.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Sursound digest..." > > > When replying, please remember to edit your Subject line to that of the > original message you are replying to, so it is more specific than "Re: > Contents of Sirsound-list digest..." > > > Today's Topics: > > 1. Re: blindly identifying matrix encodings (Aaron Heller) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 10 Mar 2012 14:23:01 -0800 > From: Aaron Heller <hel...@ai.sri.com> > Subject: Re: [Sursound] blindly identifying matrix encodings > To: Surround Sound discussion group <sursound@music.vt.edu> > Message-ID: > <ca+mmr5aup1719vsws6j1iex6qbrvu8txnr0pmje4bwxmdzs...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Following up, I made a UHJ version of "Eight Directions". Grab it and the > MATLAB code that made it from > > http://ambisonics.dreamhosters.com/ (at the bottom of the page) > > As you can see from the code, is is easy to plug in any coefficients needed. > > > On Fri, Mar 9, 2012 at 2:07 PM, Aaron Heller <hel...@ai.sri.com> wrote: > >> Perhaps a useful first step would be to take some B-format recordings from >> Ambisonia and encode them into the various systems, so we could listen to >> the differences in some controlled manner. That would also comprise a >> reference data set to test automated algorithms. >> >> Sorry if this has been answered before, but is there a concise summary of >> the encoding and decoding equations for the formats? With that in hand, it >> should be quick MATLAB/Octave exercise to encode some B-format recordings. >> >> >> On Fri, Mar 9, 2012 at 10:22 AM, Eero Aro <eero....@dlc.fi> wrote: >> >>> Richard Lee: >>> >>> I'm actually listening to the "stereo" presentation of the reverb >>>> rather than individual sources. >>>> >>> >>> My respect! >>> But I know what you are talking about. However, your skills need a lot of >>> listening experience. >>> >>> >>> You'll probably find a stereo fig-8 @ 90 decode from the B-format >>>> gives sharper images than "UHJ encoding listened in stereo" of the >>>> same B-format. >>>> >>> >>> Naturally. >>> >>> Eero >>> >>> ______________________________**_________________ >>> Sursound mailing list >>> Sursound@music.vt.edu >>> https://mail.music.vt.edu/**mailman/listinfo/sursound<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/20120310/198a313f/attachment.html> > > > ------------------------------ > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound > > > End of Sursound Digest, Vol 44, Issue 10 > **************************************** _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
