Svein, Those are some really nice measurements, in a horror show sort of way! I'll spend some time playing with them to see if I can elicit a superior conversion from A-format to B-format. That is, in between courses of stuffing ourselves into insensibility with our Thanksgiving Holiday here in the US.
----- Original Message ---- From: Svein Berge <[email protected]> To: Surround Sound discussion group <[email protected]> Sent: Thu, November 25, 2010 2:39:53 AM Subject: Re: [Sursound] A conversion guide ? Here's a quick and dirty directivity measurement I did on an unmodified H2: http://www.pvv.ntnu.no/~sveinb/sfcalib/zoom-h2.html It's not left-right symmetrical, which might indicate a measurement problem. The ideal conversion matrix (ignoring the measurements, just assuming ideal, as-specified cardioid characteristics. Posted before): {w,x,y}={{w1, w1, w2, w2}, {x1, x1, -x1, -x1}, {y1, -y1, y2, -y2}} . {fl, fr, rl, rr} where w1=1-1/sqrt(2) w2=sqrt(2)-1 x1=2*sqrt(2)-2 y1=2*sqrt(2)/5 y2=2*sqrt(3)/5 and {fl, fr, rl, rr} is the input signal. Svein On 25. nov.. 2010, at 06:28, George Kierstein wrote: > Hi, I haven't been too successful in finding a conversion guide between > different formats. > > > I am sure it won't be perfect, but I recently got an Zoom H2 which does 4 > channel L-R Rear recording and I would like to get it into B-Format to send > through subsequent processing. I have seen tools that can convert the > 4-channel into 5.1 but no information on how to turn 5.1 into B-format. Of > course, it would be optimal to skip the middle step if possible. > > Any info would be appreciated! > Thanks > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: ><https://mail.music.vt.edu/mailman/private/sursound/attachments/20101124/ae0f14e2/attachment.html> > > _______________________________________________ > Sursound mailing list > [email protected] > https://mail.music.vt.edu/mailman/listinfo/sursound _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
