At 04:39 09/10/2011, Fons Adriaensen wrote: >On Sun, Oct 09, 2011 at 10:16:22AM +0100, [email protected] 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.
There would be a progressive increase in pressure as the angle between two pieces of wood decreases, but do the pieces of wood themselves really make a sound as they hit each other, other than the sound of air being squeezed out? Is this any different from clapping or bursting a paper bag?
David _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
