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Control Vinyl Clear
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V/A: Fool's Gold 4 Deep Serato Pressing Control Vinyl (Lil B, Kingdom, Cubic Zirconia) - Clear Marble Yellow 2LP
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![Ultra Point Of Intersection Exist [RARE]](http://www.stagelightingandeffects.info/media/images/i/51u159GI7AL._SL75_.jpg) |
Ultra Point Of Intersection Exist [RARE]
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DescriptionA1 Answer |
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Metronomics
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DescriptionTHIS IS A VINYL RECORD ALBUM BY KRISTIAN SCHULTZE CALLED "METRONOMICS", & IT'S ON THE LIFE STYLE LABEL #LSR-6008 IN STEREO, & IT CAME OUT IN 1987. IT CONTAINS (9) NEW-AGE TUNES LIKE: "TOTAL RECALL, CLEAR MY MEMORIES, LEFT TO MY DEVICES, MIND DEVICE, BIT BOUNCE, DEVICE CONTROL, FREE RUN, RESTART + TIME SLICE"... |
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Energy Film Glare Control Window Film 48-by-84-Inch
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DescriptionEnergy Film Shade is a thin, tinted window film that provides immediate year-round energy savings by retaining interior heat in the winter and blocking solar heat in the summer. Energy Film Shade is an inexpensive and easy way to make the home or office more energy efficient while providing UV protection... |
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PSI Woodworking D50C 4-Inch by 50-Feet Clear Flexible Dust Collection Hose
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Gila LEG361 Heat Control Residential Window Film, Light, 36-Inch by 15-Feet
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DescriptionProvides year round comfort and energy savings by reflecting up to 70% of summer heat and retaining up to 55% of winter heating. Rejects 99% of damaging UV rays which offers protection to home furnishings and decor... |
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Obagi CLENZIderm Therapeutic Moisturizer - 1.7 oz
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DescriptionFor Normal/Dry Skin. Obagi CLENZIderm Therapeutic Moisturizer is a non-comedogenic, glycerin-rich moisturizer that protects while enhancing the comfort level of your skin during treatment. Obagi CLENZIderm Therapeutic Moisturizer contains 20% Glycerin that maintains the moisture balance and protects the skin, and 1% Dimethicone that calms and soothes while preventing overdrying... |
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Wet and Forget 800003 Wet And Forget Moss Mold Mildew & Algae Stain Remover
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DescriptionWet and Forget has a unique combination of biodegradable selective surfactants for moss removal, mold removal, mildew and stain removal on any exterior surface. When diluted with water and applied, it immediately attacks that unsightly moss, mold, and mildew... |
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BiON Acne Control Kit - Oily/Normal
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DescriptionAnce Control Kit for oily, combination or normal skin type include four 1.2 oz products with instructions on how to use the products for complete control of acne. Packaged in a clear vinyl box. |
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Yamaha CDC-697BL 5-Disc Carousel-Type CD Changer
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Description5-disc carousel-type CD changer offers uninterrupted enjoyment of high sound quality with superior digital performance and easy operation with CD-RW disc compatibility, custom control interface, and CD Text display. |
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DLO Action Jacket Armband Case for iPod nano 1G, 2G (Black)
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DescriptionDLO Action Jacket for iPod Nano - Black - Sport-ready neoprene workout case for iPod nano includes armband and belt clip; Fits 1st and 2nd Generation iPod nano. |
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Rane Serato Scratch LIVE - Second Edition Control Vinyl Record
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DescriptionThe Second Edition Scratch LIVE vinyl (CV02) is different from the first edition (CV01) in two ways. Firstly, the record was mastered on much better equipment than the original, and does not suffer from any noticeable pitch variation (0... |
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Premium Skque Clear Hard Plastic Crystal Case + 11.6 Inch Screen Protector + USB to RJ45 LAN Ethernet Network Adapter + 11.6 Black EVA (Ethylene-Vinyl Acetate) Carrying Case for Apple MacBook Air 11.6
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DescriptionCompatible With Apple MacBook Air 13.26 |
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Lewis N. Clark WaterSeals standard Waterproof MP3 or IPOD pouch
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Mitsubishi Lancer Evolution X Body, Clear (200mm)
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DescriptionThe Mitsubishi Lancer Evolution body from HPI Racing captures the look and feel of the full-size turbocharged 4WD street car. The Evo has always been known for outstanding performance, and the Evo X takes that formula and adds the latest technology to make it the fastest production Evo ever. |
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Flower Cloud Design Decorative Protector Skin Decal Sticker for Nintendo 3DS Portable Game Device
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DescriptionThe Nintendo 3DS is an awesome device! The graphics are intense and the screen is amazing. Just like the Nintendo 3DS, our skin decal stickers are offered in high quality, high definition color and graphics... |
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Digital Urban Camo Design GameBoy SP Decorative Protector Skin Decal Sticker
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DescriptionScratch resistant skin sticker helps to protect your GameBoy SP while making an impression. Self-adhesive plastic-coated skins cover the are custom cut to perfectly fit the GameBoy SP. Skins are paper-thin so they do not add any bulk, easy to apply (no bubbles), durable and easily removable without any residue... |
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Bark At The Moon Design Decorative Protector Skin Decal Sticker for Nintendo 3DS Portable Game Device
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DescriptionThe Nintendo 3DS is an awesome device! The graphics are intense and the screen is amazing. Just like the Nintendo 3DS, our skin decal stickers are offered in high quality, high definition color and graphics... |
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70SB049000000 - Creative Technology - Creative Sound Blaster Live 24-bit External - Sound card - external - USB
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DescriptionThis ultra-affordable upgrade allows you to start enjoying an audio experience and quality thats not possible with basic on-board audio thanks to 24-Bit ADVANCED HD and EAX ADVANCED HD technologies. Your music will never have sounded better and youll even be able to convert your old tapes or vinyl to digital audio... |
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Sweet Candy Design Decorative Protector Skin Decal Sticker for Nintendo 3DS Portable Game Device
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DescriptionThe Nintendo 3DS is an awesome device! The graphics are intense and the screen is amazing. Just like the Nintendo 3DS, our skin decal stickers are offered in high quality, high definition color and graphics... |
Serato Pressings - Def Jam Recordings 25th Anniversary Collector's Edition
Improve Acoustics and Academics – Noise Control for the Classroom
The ideal classroom is one in which students can clearly understand the instructor during lecture and focus on assignments, projects and tests in an environment free of distractions. Here we outline some of the soundproofing challenges faced within classrooms:
-Outside sound transmission into the classroom. A classroom left untreated for sound transmission will not only allow sound to escape, but will allow the transfer of outside noise into the classroom. Audible outside noise can be a major distraction and interfere with the quality of any learning environment. Additionally, excessive outside noise such as outdoor construction or students in a hallway can eliminate a teacher’s ability to communicate effectively with the students in the class altogether.
-Numerous hard, reflective surfaces: A major soundproofing challenge arises from an issue common to most classrooms—the presence of walls, desks and a ceiling, each of which reflects sound waves back into the room. As a teacher delivers a lecture, a portion of the sound waves produced by his or her voice reflects from the numerous hard surfaces within the room, a behavior known as sound reflection. Reverberations delivered back into a classroom interfere with the intended sound, and is thus one of the sound wave behaviors targeted in soundproofing a classroom.
-Multiple voices competing within the room. Students can strengthen important fundamental skills by working with a team or partner on a project, but a noisy classroom environment can make group work difficult. With numerous people speaking at the same time, a jumble of voices reflects from the hard surfaces in the classroom, and the resulting reverberations interfere with audibility throughout the room. Heightened noise levels are exacerbated as students speak more loudly in order to be heard.
In order to prevent outside noise from bleeding in and combat reverberations created within a classroom, soundproofing treatments must target both sound transmission and sound reflection. Now let us take a look at how each of these sound behaviors can be alleviated in a classroom environment:
-Controlling sound transmission: Eliminating noise transmitting in from outside a classroom (and vice versa) involves isolating the room such that the ability of sound waves to transmit through the walls and ceiling is compromised. Sound waves travel freely through common contact points, such as the studs and walls surrounding the classroom. Isolating a classroom can be accomplished by adding density to each wall and creating a separated wall surface parallel to each. Adding density is often accomplished by covering walls completely with a heavyweight vinyl soundproofing membrane such as dB-Bloc. Once increased density is established, a set of horizontal furring strips affixed to the wall creates a foundation for a new layer of drywall that will make up the second wall surface. This separation forces outside sound waves to collapse within the space between the two surfaces rather than transmit directly into the classroom, and also serves to protect adjoining classrooms from sound transmitting out of the treated room.
-Absorbing sound reflections: Controlling sound reverberations caused by voices and other sounds within a classroom can be accomplished quite easily through the installation of absorptive sound panels along the walls and potentially the ceiling of the room. Absorptive sound treatments are available in a variety of styles to meet the requirements of different applications, including Class A Fire Rated panels ideal for the classroom environment.
Properly implemented, soundproofing treatments can affect a major improvement in the quality of a learning environment. Combating sound transmission and reverberation in a classroom results in better acoustics for lecture and group work while minimizing outside distractions that could otherwise hinder academic performance.
About the Author
About the Author: Mark Rustad is President of NetWell Noise Control, based in Minneapolis, MN. Founded in 1991, NetWell is a leading supplier of acoustic products, soundproofing treatments, sound reduction products and online acoustical consulting services. NetWell’s sound management skills are packaged into the industry’s premier website. Discover first hand why so much of NetWell’s business stems from the referrals and repeat orders they receive from satisfied clients around the world.
