string terminations

[Ron Nossaman]

> Last, Ron asks about how fast. Both D6 and C64 were taken at 2000fps. 
> The D6 = 38Hz fundamental is played back at 30fps, so the apparent 
> frequency observed in the video is (30/2000)*38 = 0.57Hz. The C64 = 
> 1047Hz fundamental is played back at 4fps, so apparent observed freq in 
> the video is (4/2000)*1047 = 2.1Hz.


I was wondering about how fast the unison was beating aurally. The 
left side string in the video isn't even close to being in phase 
with the other two. It's flat, and does about 11 cycles of excursion 
for every twelve of the other two. At 1047Hz fundamental, wouldn't 
that be about 80 bps? Somewhat beyond just not being tuned. If it 
sounds as bad as it looks, that's one nasty unison.

Ron N