At 1:38 PM -0800 12/18/01, Brian Trout wrote: >A practical example of whether or not the above >mentioned "phasing" matters is the situation we >see on a routine basis with unlevel strings. >When the strings of a unison are out of level and >the hammer strikes them at slightly different >times, you have a phasing effect which may not be >terribly dissimilar to what you describe above. >It is considered by most to be quite undesirable >and even an untrained ear can often hear the >improvment in the tonal characteristics of the >sound produced by strings closer to vibrating in >phase with each other (level). > >No offense intended. None taken; but the case you mention is a particular instance which involves a number of complicating factors, and the unpleasant effect you mention is due to a difference in the nature of the transverse vibrations of the two strings. In the ideal case I am talking about, both strings are executing precisely the same wave pattern. The only point I am making is that according to the "bridge moves soundboard" theory, if there is a zero force acting vertically upon the bridge, as will occur frequently, the result will be no movement of the bridge and soundboard and therefore virtually no sound. Since I reject the theory, I say that this silence never actually happens. JD
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