I dug up my calculations. The lute I was studying has an internal volume of about 10.7 liters. I modeled an 80mm rose diameter that was 30% to 75% open by the pattern.chosen. The openness of the rose would tune the Helmholtz resonance from 109 Hz -closed pattern to 139 Hz for an open pattern.
Bill ----- Original Message ----- From: "WIWO" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, December 10, 2003 11:46 PM Subject: Re: # 2 lute question > > > > Changing the area of the opening will effect the Helmholtz resonance. > > If you sing a rising tone over the sound hole of your lute you will find > a > > certain note that gets very much louder. (damp the strings) > > i did it: > my old lute responsed at C my new one at D with damped strings. > w. > >
