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How to Soundproof Your Studio for a Better Podcast

The popularity of video and audio podcasts has drawn attention to the value of good acoustics and the importance of soundproofing the space you record in. Large, �˜echo-y�™ rooms make the audio hard to understand and difficult to listen to. In addition to the sound that moves to the camera directly, other sound waves travel from the point of origin out to reflective surfaces and back again. These reflections mix with the direct sound and distort the sound�™s clarity. The solution is to use sound-absorbing materials to capture reflections and prevent them from being recorded during the podcast. When properly installed, these specially designed sound-absorbent materials trap reflected sound waves, resulting in a clearer audio for your podcast. To achieve these results, we installed Owens Corning QuietZone� Noise Control Batts and SOLSERENE� Fabric Ceiling System to the ceiling above the workspace, to the wall behind the workspace and to three movable sound absorbing panels, which can be rolled into place, as needed. Here�™s how to do it.

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How to Soundproof Your Studio for a Better Podcast

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" Popularity of video and audio podcast has drawn attention to the value of good acoustic and the importance of soundproofing the station recording. Large echoey rooms make the audio hard to understand and difficult to listen to. In addition to the sound that moves to the camera directly, other sound waves travel from the point of origin out to reflective surfaces and back again. These reflections mixed with the direct sound can distort the sound's clarity. The solution is to use sound absorbing materials to capture reflection and prevent them from being recorded during the podcast."

" Now, what you've---- oil this, shellac it, and let is sit for a couple days. It's really important to put some wax on this thing. Now----"

" When properly installed, these specially designed sound absorbent materials trap reflective sound wave, resulting in clearer audio for your podcast. To achieve this result, we installed sound absorbing materials to the ceiling above the work space, to the wall behind the work space, and to 3 movable sound absorbing panels, which can be rolled into place as needed. Here's how to do it. This studio space is framed with post and beam construction so the first step was to construct a non-load bearing stud wall between the post in the back, and to run 2 x 4 joists between the ceiling beams to support the acoustic material above. To absorb the sound waves that would normally reflect off the ceiling, we are going to use Owens Corning's Solserene residential fabric ceiling system installed in a slightly unconventional way. The system consist of a compressed fiberglass acoustic core, a fabric retaining track that suspends the acoustic core panels and firmly holds the Solserene fabric over the acoustic core. The result is a finished monolithic acoustic surface that looks very much like a painted ceiling. Because this is an old post and beam factory building, we set 2 x 4 joists 24-1/2 inches on center between the old factory beams to support the sound absorbing material, which is 49 inches wide x 8 feet 1 inch high. The first step is to attach the fabric retaining track to the perimeter of the ceiling area. Drill 1/8 of an inch pilot hole for the retaining screws approximately every 8 inches along the track. This fabric retaining track is fastened in place with 1 inch drywall screw. When you reach a corner, cut the fabric retaining track at a 45-degree angle and install the track so that the mitered faces line up evenly. Continue to fasten the track around the entire perimeter of the area you will be treating. In a more traditional room, you would be doing the entire ceiling. Next, we install the acoustic panels by sliding the panels into the slots of the fabric retaining track. You can use the fabric tuck tool or your fingers to help guide the acoustic core panel into the slot. Fasten the acoustic cord to the joists with drywall screws and fender washer. Tighten the screws until the washer just touches the panel and then stop. Once the track and the acoustic core panels are in place, the next step is to install the Solserene covering over the acoustic core panels. Drape 3 to 4 inches of fabric over the tuck tool and insert the fabric into the retaining track. Move down the length of the wall, keeping the excess fabric in the bag. Insert the fabric into the retaining track approximately every 6 inches. When you remove the tuck tool from the track, the fabric will be held firmly in place. Alternating from side to side, tack the fabric into the retaining track every few feet until the Solserene is hanging loosely from the ceiling. With the Solserene loosely in place, cut away the excess. Work your way around the perimeter with a Solserene fabric tuck tool until the fabric is tightly tucked in place. When the Solserene is tight, trim off any excess with a sharp utility knife. The finished surface has a solid monolithic look with very effective acoustic properties. We treated the back wall exactly the same way as the ceiling, first installing the fabric retaining track around the perimeter of the back wall. Next, covering the surface with 2 panels of fiberglass acoustic core and fastening each panel to the stud with drywall screws and fender washer. As with the ceiling, we covered the acoustic core with Solserene acoustic fabric, stretched and tucked into the fabric retaining track until the surface is tight. The result is an attractive acoustic absorbing wall that along with the ceiling will trap reflective sound waves and help improve the sound of the podcast. In the first part of our video on soundproofing your studio for a better podcast, we used the Owens Corning Solserene residential fabric ceiling system in a somewhat unconventional way to acoustically treat the ceiling and back wall of the workshop. This treatment absorbs reflective sound wave and improves the quality of the podcast. Now, we're going to add 3 movable acoustic panels to complete the sound treatment project. We've built 2 already, and now we're going to build the third. Each of the 3 panels are framed with 2 x 4's 16 inches on center, the same way you would build a stud wall. While wearing a dust mask and gloves, the first step is to staple the Owens Corning Quietzone batting between the studs. The batting is secured with staples to the studs. Next, measure, cut, and fasten the fabric retaining track around the perimeter of both sides of the panel. The paper side will face away from the sound source, but you still want it to look good. The end should be cut at a 45-degree angle, so that the channels along the edge align. Flip the panel over and fasten the fabric retaining track to the other side of the panel as well. It's this side with the Corning Quietzone batting exposed that should face you when you make your podcast. Stretch the fabric across the panel, and using the fabric tuck tool, tack it into the fabric retaining track working 1 side and then the other, evenly stretching the fabric across the surface. Solserene is acoustically transparent. This special cloth is made from a high-quality, locking knitwe, offering a fire retardant, crisp, monolithic surface. When the fabric is tight,"

" Roll the panels into place and set up your camera. You may want to experiment with the location of the 3 panels until the best audio quality is achieved."

" Now it's very important to know that when you decide to put oil on this, you just have a rag with the white light on it."

" I don't wanna take a rag, a cotton rag by the way, not a polyester one. You wanna take a niece piece of clean cotton and go----"

" You will discover that your new acoustic room treat will make a significant improvement in the quality and clarity of the podcast sound."

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Installing a QuietZone Solserene Fabric Sound Absorbing Ceiling
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Bob recaps the work done so far in the nursery project at the home in Melrose, Massachusetts. The house has already been insulated for the tough New England winters and will now be insulated for sound control. Bob talks with Arline Bronzaft, an Environmental Psychologist with a PhD in child development, about the importance of raising a baby in a quiet environment. Bronzaft stresses the importance of a good night's sleep for an infant. With this in mind, Bob reviews a discussion he had with Harry Alter of Owens Corning and the installation of their sound attenuation product, QuietZone. Alter reviews the necessary safety equipment for installing the Owens Corning QuietZone batt insulation and demonstrates how it is installed. Alter shows how to mark outlets and cut the insulation to accomodate them. Alter also shows how the insulation can be split apart to surround existing wiring. Bob talks to Alter about making sure all the stud cavities are filled and to be on the lookout for any gaps or cracks. Alter reviews with Bob the differences between acoustic and thermal insulation. This product is a lighter weight density insulation designed specifically for accoustic insulation. A special caulk is applied in gaps and cracks that cannot be filled by the QuietZone insulation, particularly where the walls meet the floor, ceiling, and door, and around all outlets.

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