![]() It is lost in other places but the bridge is our prime concern. The energy is limited and it is lost through the top via the bridge. This is what causes our sustain or more correctly decay. The top needs to respond to the vibrations of the string and it does it by passing some of the energy through the top and some travels back down the string. That allows it to be relatively light but remain stable as well as vibrate freely compared to other woods. Spruce is chosen because it has a high stiffness to mass ratio. ![]() On most decent but not all acoustic guitars the top is made of some variety of spruce. First and foremost are the materials it is made of and specifically the top and how it is braced. ![]() OK before we move on to a discussion on what your objectives are a little background may help.Īn acoustic guitar sounds the way it does for a number of reason. The output doesn't have to be loud (Or does the body respond to different volumes differently?), I'd be recording in a vocal booth using the lowest self noise stuff if I have, but if I can't drive it safely I'm not going to risk it, I don't know enough about piezo elements beyond that they turn electric fluctuations into compression/expansion and vice versa. recorded tracks need also applied to the impulse response, the one in that link needed lots of high boost/lower mid cut), then loaded that into a pedal that uses impulse responses, I could have the best live guitar sound. If I miced my guitar up properly in the studio and got a good impulse response of it (With any EQ e.t.c. I'm mixing some live stuff with DI'd guitars for someone, thats what started this whole thing, but it got me thinking about my own live acoustic sound. This was with a different guitar that has no pickup in it, to be applied to a different guitar again. I've been messing around with knocking the guitar body in various places and strumming all the strings muted, with mixed results ( Clicky). The pickups are on the inside on the guitar, under the saddle, my thinking was exciting the guitar where the strings meet the body would give a.an impulse response more true to how the guitar responds to being played.
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