Tue, 10 May 2011 11:07:14 -0600, Martin Leese <martin.le...@stanfordalumni.org> wrote :
> Marc Lavall?e <m...@hacklava.net> wrote: > ... > > Here's some random thoughts (comments are welcome): > ... > > - I learned that it's possible to use subwoofers with Ambisonic; > > but a minimum of four subwoofers are required with a dedicated FOA > > decoder. > > As subwoofers handle frequencies well > below 700 Hz, you need a minimum of only > three (in a triangle) for horizontal, or four (in a > tetrahedron) for full-sphere. Also, the > decoder needs to be a velocity decoder, so is > about half (the low-frequency half) of a > dedicated FOA decoder. I like this idea of a full-sphere bass setup. There would be 3 (small) subs on the floor (front-left, front-right, rear-center) and one on the ceiling (like a Z bass channel). Questions: Is it acceptable if the mid-high speakers go down to 150Hz while the subs go up to 700Hz? What would be an appropriate upper frequency limit for the subs? How to adjust all the decoders to handle different and overlapping frequency ranges? Is is better to avoid overlapping? -- Marc _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
