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Post by tuantranaudio on Jun 4, 2017 16:52:16 GMT
Well, because of some wrong calculation at the beginning stage of building room and a must-have-vocal booth, now I must choose a room within room. But I wonder which one is better than the other (two pictures attached below). There's a thing is that if I choose the second one, intentional dimensions which follow the ratio 1:1.14:1.39 for my CR will be changed to something else; and I don't know if the mixing/listening position will be 38% of 3.9m or of 5.1m. note: 2 black blocks are speaker positions Attachments:
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Post by rock on Jun 4, 2017 22:04:17 GMT
Acoustics aside, from a practical standpoint, given the choices, I would choose the larger booth because the smaller one looks just too small. However if it was a little wider than#2, say about 2m, maybe your alcoves in the back corners could be filled with fluffy and serve as super chuncks. I'm not sure about this but it might be a practical compromise.
Did you take the wall thickness and required transmission loss into consideration? You'll need to do this to get your actual inside room dimensions. If you have done research on isolation, good, if not check Rod Gervais' book on studio building.
Cheers,
Rock
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Post by tuantranaudio on Jun 5, 2017 2:02:21 GMT
Acoustics aside, from a practical standpoint, given the choices, I would choose the larger booth because the smaller one looks just too small. However if it was a little wider than#2, say about 2m, maybe your alcoves in the back corners could be filled with fluffy and serve as super chuncks. I'm not sure about this but it might be a practical compromise. Did you take the wall thickness and required transmission loss into consideration? You'll need to do this to get your actual inside room dimensions. If you have done research on isolation, good, if not check Rod Gervais' book on studio building. Cheers, Rock Hi Rock. With #1, VB will be 1.2m x 3.2m; With #2, VB will be 1.2m x any sizes smaller than 3.2m There is only 1 side of VB made by brick wall, the 3 other sides will be thick MDF or plywood instead. |
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Post by Ethan Winer on Jun 5, 2017 14:26:42 GMT
A larger booth is better, but having a booth that doesn't cover the entire rear wall has the advantage of breaking up reflections. See this video starting at 5:30 which shows a similar idea: www.youtube.com/watch?v=vb30CICG68c&t=5m30s |
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Post by tuantranaudio on Jun 5, 2017 14:58:28 GMT
A larger booth is better, but having a booth that doesn't cover the entire rear wall has the advantage of breaking up reflections. See this video starting at 5:30 which shows a similar idea: www.youtube.com/watch?v=vb30CICG68c&t=5m30sI have just watched it, now I have a good chance. But if I build a booth like that, do I need to treat two alcoves in the back corners? And how long of CR was measured, I mean, does the length equal to the rear wall or to the edge of the booth? |
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Post by Ethan Winer on Jun 5, 2017 15:45:00 GMT
I guess you could calculate the best dimensions for a three-well QRD if you really want to get fussy. I think just having two (or three) different depths will help a lot. If this is not what you're asking, please clarify.
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Post by tuantranaudio on Jun 5, 2017 16:07:36 GMT
I guess you could calculate the best dimensions for a three-well QRD if you really want to get fussy. I think just having two (or three) different depths will help a lot. If this is not what you're asking, please clarify. I'm sorry for confusion. Here a picture for my question. Attachments:
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Post by Ethan Winer on Jun 5, 2017 16:18:03 GMT
I'll say that the deeper corner definitely needs bass traps, and the nearer one next to the booth needs it a little less. The important corners are the outermost corners. Further the narrower the protrusion, the less low frequencies can collect. Imagine a pillar along the side wall. This one looks about 1 foot wide sticking into the room about 4 inches:  So sticking out only 4 inches, not much bass will collect there! I think you can calculate the lowest frequency that collects by figuring 1/4 wave (or maybe 1/2?). So 1/4 wavelength of 4 inches is 850 Hz. By extension, your booth is about 1.5 meter wide = 57 Hz, so I guess a bass trap there will help. |
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Post by tuantranaudio on Jun 5, 2017 16:30:36 GMT
I'll say that the deeper corner definitely needs bass traps, and the nearer one next to the booth needs it a little less. The important corners are the outermost corners. Further the narrower the protrusion, the less low frequencies can collect. Imagine a pillar along the side wall. This one looks about 1 foot wide sticking into the room about 4 inches: So sticking out only 4 inches, not much bass will collect there! I think you can calculate the lowest frequency that collects by figuring 1/4 wave (or maybe 1/2?). So 1/4 wavelength of 4 inches is 850 Hz. By extension, your booth is about 1.5 meter wide = 57 Hz, so I guess a bass trap there will help. The explanation in detail. Again, thank you so much Ethan! |
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