Posted by Bob Brines [ 148.63.220.187 ] on December 16, 2005 at 13:04:44:
In Reply to: Re: How much do the harmonics matter? posted by GM on December 16, 2005 at 11:19:34:
?
The only way that a 1/2 wave mode can be supported is to have a node at the top and closed bottom of the pipe, and this fundamental would be twice that of the 1/4 wave mode. In this case, that would be 80 Hz. Since the 1/2 wave mode is trapped between the ends, it would produce no output but would modulate the driver. I don't see it in the model above, nor do I remember you mentioning 1/2 wave modes in stopped pipes.
See Modeled/actual comparisons.
Bob
[ SingleDriverSpeakers Forum ] [ Help ]