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Junior Varsity
Question regarding an audio recording setup i have in mind
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<blockquote data-quote="Rob Timmerman" data-source="post: 212645" data-attributes="member: 172"><p>Not quite. While it is true that you do need a barrier (and a lack of air paths) to provide acoustical isolation, adding absorption to the "noisy" side of the barrier does provide additional improvement (above and beyond the simple sum of the isolation provided by each of the barrier and absorption layer). This is because the absorption layer helps with the reflections you get from typical barriers (and in some cases, also helps provide damping to the barrier). This is exactly the role that fiberglass or blown-in insulation serves in a typical commercial construction barrier wall.</p><p></p><p>To the OP, if you're just recording voice, you shouldn't need a significant amount of isolation to avoid disturbing your neighbors unless you're shouting. A 3/4" plywood or MDF box caulked and lined with foam should give you about 10dB of isolation (perhaps a bit more at speech frequencies), cutting the sound level (subjectively) in half, while remaining portable. Basically, you're building gobos</p></blockquote><p></p>
[QUOTE="Rob Timmerman, post: 212645, member: 172"] Not quite. While it is true that you do need a barrier (and a lack of air paths) to provide acoustical isolation, adding absorption to the "noisy" side of the barrier does provide additional improvement (above and beyond the simple sum of the isolation provided by each of the barrier and absorption layer). This is because the absorption layer helps with the reflections you get from typical barriers (and in some cases, also helps provide damping to the barrier). This is exactly the role that fiberglass or blown-in insulation serves in a typical commercial construction barrier wall. To the OP, if you're just recording voice, you shouldn't need a significant amount of isolation to avoid disturbing your neighbors unless you're shouting. A 3/4" plywood or MDF box caulked and lined with foam should give you about 10dB of isolation (perhaps a bit more at speech frequencies), cutting the sound level (subjectively) in half, while remaining portable. Basically, you're building gobos [/QUOTE]
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Question regarding an audio recording setup i have in mind
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