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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: 33615" data-attributes="member: 431"><p>64kg/cubic meter rigid fibre glass 50mm thick held 50mm away from the wall (all this info is on the site). The canvas acts as a moveable membrane in front of the fibreglass (it is held away from the fibreglass so it can vibrate freely). My thinking was that sound waves would make the canvas vibrate and thus transfer most of the energy into the damping material which would absorb it. Only those frequencies that were unable to cause the canvas to vibrate (ie the higher frequencies) would be reflected so in theory I dont see the non permeable canvas having to large a negative effect on lower frequency absorption which is typically the main issue, but would appreciate the comments of those that know what they are talking about.</p><p></p><p> </p></blockquote><p></p>
[QUOTE="alanB, post: 33615, member: 431"] 64kg/cubic meter rigid fibre glass 50mm thick held 50mm away from the wall (all this info is on the site). The canvas acts as a moveable membrane in front of the fibreglass (it is held away from the fibreglass so it can vibrate freely). My thinking was that sound waves would make the canvas vibrate and thus transfer most of the energy into the damping material which would absorb it. Only those frequencies that were unable to cause the canvas to vibrate (ie the higher frequencies) would be reflected so in theory I dont see the non permeable canvas having to large a negative effect on lower frequency absorption which is typically the main issue, but would appreciate the comments of those that know what they are talking about. [/QUOTE]
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Audio and Video Talk
Acoustics & Room Treatment
Arty absorption panels
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