It is similar to the situation you have with a drum or cymbal in a big drum sampler like DFHS or BFD.InfiNeat wrote:I'm curious. When I hit the same chord repeatedly the polyphony goes up. If this is really physically modeled, shouldn't the polyphony remain the same as I am only hitting the same strings over and over?
If you hit the open hi hat cymbal once, you excite it and you will trigger direct mic samples OVH and room samples. If you hit it again
1) the already playing ambient samples are not affected - they are still bouncing around in the room and will continue to do so just as the real sound would decay in a drum studio
and
2) the cymbal itself (sound source) does not go from silent to vibrating as it did the first time, it goes from one mode of vibration to a more complex one. If you limit a cymbal (eg open hi hat or ride) to one voice it sounds completely unnatural.
The hammers restriking a piano string (even if the dampers are active ie pedal up and below the upper section) do some analogous things - they trigger a new pulse of direct sounds from the string that is probably still vibrating, from other sympathising strings and they also add a fresh attack to the room reverb element of the sound.
