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#1
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Small room design/treatment
Hi all,
I've been lurking here a good long while now, and want to thank the many who have posted sensible information and good web links; lots of interesting sites to surf! I've also picked up some good books: one of Alton Everest's, and Cooper's book on small recording studio design, and a couple of Philip Newell's books. Music has been a life-long love affair for me. In my teens i always thought i'd wind up working in a studio, then in my early 20s that i'd make a career as a violinist, but wound up doing software development for economic and marital reasons :-) I've played in one ensemble or another most of my life, and have sporadically done recording, always in some borrowed space. My home studio is housed in a small bedroom and consists of a DAW put together with parts from NewEgg running Adobe Audition, and a MOTU 828mkII. I'm now in a position to build a proper small project / tracking / recording studio to support what i really love to do, and plan to eventually retire into performing and recording. I play a variety of bowed and plucked stringed instruments, and want to be able to track them as well as rehearse and record small ensembles. Genres range from classical to bluegrass to alt country to progressive rock. I'm particularly intrigued by a room Philip Newell describes in chapter 8 of Recording Spaces. This is a real room in a studio in Lisbon, Portugal (Tcha Tcha Tcha Studios). From the scale given in the diagrams, the room appears to be approximately 8'-6" x 11'-0", and it has been designed with a compound sloped wall (it is Studio 2 in Figure 8.4, with subsequent discussions and details of the construction, for those of you who may happen to own a copy of this book). Mr. Newell calls this the "Geddes approach" after work done some years ago by a Dr. Earl Geddes (who seems to specialize in loudspeaker design these days), and suggests that it has many advantages for a small room. Basically, the room has a live floor and a live wall that is sloped both vertically and horizontally (appears to be 10 degrees +/- though the slope angles are not specified in the text). The floor and sloped wall are panelled with wood, and the remaining walls and ceiling are quite absorbant. The sloped wall itself is constructed to serve as a bass trap, and due to the small room size, low bass is below the room cutoff frequency. The live wall and floor give early reflections, imparting a measure of "liveness" to the apparent sound of the room, but the compound sloping of the non-parallel wall, together with the aborbant side walls and trap, rapidly absorb secondary reflections. This seems like a good option for inclusion in a small studio, as the room appears to be useful both as a drum booth and as a tracking and vocal room (mic placements for both are suggested). From Mr. Newell's anecdotal comments, the owners of the studio like the room and have gotten much use from it. I have about 900 square feet altogether to work with (with 11' feet of vertical space), hence the appeal of a small room like this that could be used as a tracking/drum booth. Has anyone here seen or used such a room? Anyone familiar with this approach from a technical/acoustics perspective? -- thanks, miner49er |
#2
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Try posting your question over at
http://www.johnlsayers.com/phpBB2/in...7f16cb1417c80f http://www.johnlsayers.com/phpBB2/in...7f16cb1417c80f Good people, good discussion Don "miner49er" wrote in message .. . Hi all, I've been lurking here a good long while now, and want to thank the many who have posted sensible information and good web links; lots of interesting sites to surf! I've also picked up some good books: one of Alton Everest's, and Cooper's book on small recording studio design, and a couple of Philip Newell's books. Music has been a life-long love affair for me. In my teens i always thought i'd wind up working in a studio, then in my early 20s that i'd make a career as a violinist, but wound up doing software development for economic and marital reasons :-) I've played in one ensemble or another most of my life, and have sporadically done recording, always in some borrowed space. My home studio is housed in a small bedroom and consists of a DAW put together with parts from NewEgg running Adobe Audition, and a MOTU 828mkII. I'm now in a position to build a proper small project / tracking / recording studio to support what i really love to do, and plan to eventually retire into performing and recording. I play a variety of bowed and plucked stringed instruments, and want to be able to track them as well as rehearse and record small ensembles. Genres range from classical to bluegrass to alt country to progressive rock. I'm particularly intrigued by a room Philip Newell describes in chapter 8 of Recording Spaces. This is a real room in a studio in Lisbon, Portugal (Tcha Tcha Tcha Studios). From the scale given in the diagrams, the room appears to be approximately 8'-6" x 11'-0", and it has been designed with a compound sloped wall (it is Studio 2 in Figure 8.4, with subsequent discussions and details of the construction, for those of you who may happen to own a copy of this book). Mr. Newell calls this the "Geddes approach" after work done some years ago by a Dr. Earl Geddes (who seems to specialize in loudspeaker design these days), and suggests that it has many advantages for a small room. Basically, the room has a live floor and a live wall that is sloped both vertically and horizontally (appears to be 10 degrees +/- though the slope angles are not specified in the text). The floor and sloped wall are panelled with wood, and the remaining walls and ceiling are quite absorbant. The sloped wall itself is constructed to serve as a bass trap, and due to the small room size, low bass is below the room cutoff frequency. The live wall and floor give early reflections, imparting a measure of "liveness" to the apparent sound of the room, but the compound sloping of the non-parallel wall, together with the aborbant side walls and trap, rapidly absorb secondary reflections. This seems like a good option for inclusion in a small studio, as the room appears to be useful both as a drum booth and as a tracking and vocal room (mic placements for both are suggested). From Mr. Newell's anecdotal comments, the owners of the studio like the room and have gotten much use from it. I have about 900 square feet altogether to work with (with 11' feet of vertical space), hence the appeal of a small room like this that could be used as a tracking/drum booth. Has anyone here seen or used such a room? Anyone familiar with this approach from a technical/acoustics perspective? -- thanks, miner49er |
#3
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Miner,
the room appears to be approximately 8'-6" x 11'-0" I have to tell you, that's awfully small for either recording or mixing. Yes, you could probably get good results in a room that size with a huge amount of absorption and especially bass trapping. But if you have more floor space than that available (you said 900 square feet), you'll do well to use as much of that as possible. What are your outer dimensions? If you have 21 by 15 feet at your disposal, see this article from EQ magazine, now on my company's site: www.realtraps.com/art_studio.htm --Ethan |
#4
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Hi Ethan,
Thank you very much for responding! I've enjoyed your website and found a lot of interesting things there to read. I neglected to mention that this would be one of 3 rooms. My current plans also call for a 13 x 19 main studio A, and a control room that is actually quite similar to the one in the article you cited, though a little smaller (around 1650 cubic feet). I plan to float the rooms using techniques described in several of the books on studio design i've studied. The particular room i was describing would be used for vocal or instrumental tracking, and as a drum isolation room. I do understand the need for a great deal of absorption and bass trapping; the double- sloped wall should hopefully serve well in the latter capacity. -- thanks, miner49er "Ethan Winer" ethanw at ethanwiner dot com wrote in news:WK- : I have to tell you, that's awfully small for either recording or mixing. Yes, you could probably get good results in a room that size with a huge amount of absorption and especially bass trapping. But if you have more floor space than that available (you said 900 square feet), you'll do well to use as much of that as possible. What are your outer dimensions? If you have 21 by 15 feet at your disposal, see this article from EQ magazine, now on my company's site: www.realtraps.com/art_studio.htm |
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