On Sun, Oct 09, 2011 at 10:16:22AM +0100, dave.mal...@york.ac.uk wrote: > Does anyone know, of the top of their heads, > if a film set type clapper board reliably provides a positive going > leading edge to it's impulse? I can't see it not, but I'd prefer that to > be confirmed by repeatable experiments.
I wouldn't rely in it. There's some air being squeezed out, but that would be a low-F thing. The real 'clap' is the sound of two pieces of wood hitting each other - I wouldn't make any guess as to the polarity of that wavefront. If you have a piece of bubble plastic around, making on of the bubbles burst should produce a 'positive' pulse... Ciao, -- FA _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound
