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Audio and Video Talk
Acoustics & Room Treatment
Arty absorption panels
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<blockquote data-quote="alanB" data-source="post: 33720" data-attributes="member: 431"><p>My logic tells me that provided the damping works, the vibrating canvas should have little or no additive effect to what you hear. Because the membrane's vibration is CAUSED by a sound wave that is already there, the fact that it vibrates in sympathy is not adding anything to the sound. The damping should stop or at least impeded it from continuing to vibrate after the wave passes (air behind the membrane has to pass through the damping material as the membrane moves, so the membrane's motion will be damped by that air slowing its motion down in the absence of external excitation). </p><p></p><p>All that should really happen is that pressure waves that pass through the canvas into the damping should effectively be removed or drastically diminished from affecting the rest of the room.</p><p></p><p>I think? </p></blockquote><p></p>
[QUOTE="alanB, post: 33720, member: 431"] My logic tells me that provided the damping works, the vibrating canvas should have little or no additive effect to what you hear. Because the membrane's vibration is CAUSED by a sound wave that is already there, the fact that it vibrates in sympathy is not adding anything to the sound. The damping should stop or at least impeded it from continuing to vibrate after the wave passes (air behind the membrane has to pass through the damping material as the membrane moves, so the membrane's motion will be damped by that air slowing its motion down in the absence of external excitation). All that should really happen is that pressure waves that pass through the canvas into the damping should effectively be removed or drastically diminished from affecting the rest of the room. I think? [/QUOTE]
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Audio and Video Talk
Acoustics & Room Treatment
Arty absorption panels
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