Mini Home Theater

Acoustic Isolation

Acoustic Isolation

GVW vinyl - a study of the performance and cost in acoustical applications

Overview of rooms to noise reduction Room evaluated in terms of sound transmission class (STC). The acoustic performance of the common 16 "wooden wall stud is typically OC STC 30 to 34, and 24 "OC stud wood wall is STC 36 to 39. This is considered poor, as the conversation can be easily heard. An old method for better insulation wall since the 70s is a product called vinyl loaded mass. It is sold under a number of brand names, as Acoustiblok, SoundBarrier and others.

Acoustics Vinyl and noise can be mitigated with an additional mass and many companies make vinyl sheets weighing about one pound per square foot. For this type of sound therapy, the mass of material is the dominant factor. However, a wall already weighs 4 to 5 pounds per square foot before mass loaded vinyl is added, so the extra pound added by a single layer of vinyl is only a small amount of added mass.

Vinyl Vendors display data transmission loss of leaves nude showing an STC of 26 or more. However, the presentation of product performance is not related to naked performance on a real wall. The scores acoustical different materials can not be added to existing walls. For example, a single sheet of 5 / 8 inch thick gypsum board itself has an STC of 28 --- 2 points higher than a pound of vinyl. But you can add that 28 to a wall of 30 and get 58. In fact, an additional layer of gypsum adds only 2-3 points to any STC wall.

Adding mass to a wall as follows massive law establishing that a doubling of the mass of the wall adds about 5 to 6 dB of isolation. This means a doubling of the mass of the entire structure!

In considering any product for soundproofing is essential for evidence of laboratory independent of the full scale of 8 'x 12' walls made with a current test method ASTM (ASTM E90 and E413). Remember individual STC values are not added.

Sound transmission in walls in one mounting bolt, the main route of transmission of sound is directly across the nails in place of the air in the cavity. The addition of a vinyl layer does little to change this situation from outside plaster nailed or screwed directly through the vinyl into the stud. For significant improvements, we must fundamentally change this way, or introduce specific structure buffer.

Effective yield There is an independent laboratory test shows a mass brand vinyl load more STC50 a 24OC wood stud wall. Unfortunately, that trial was conducted in a single wall section (4 'x 8') instead of the 8 necessary 'x 12' wall, making the test invalid as it does not meet the requirements of ASTM E90. Three other large-scale trials have been published showing MLV on one side of a wooden wall stud 24OC STC 43 to STC 45. This is an improvement of about 15% less noise heard by humans.

Considerations on the cost of one pound per square foot vinyl sells for $ 1.50 to $ 2.00 per square foot in many online stores plus shipping (add about $ 1 per pound for UPS). So the average cost of delivery of material $ 2.50 to $ 3.00 per square foot.

Vinyl installation is labor intensive. The vinyl should be peeled, cut by hand around obstacles, attached with fasteners and carefully recorded along all seams prior to installation of the plasterboard layer. If you're not doing the work themselves, subcontractors charge $ 1.00 to $ 2.10 square foot for installation.

Thus, in projects of reasonable size, one can expect an increase wall costs $ 3.50, 5.10 dollars per square foot. Consider a base of about $ 4.00/sqft if new construction for the nails, plaster, and the standard work, and this is on a wall that averages $ 8/sqft. This will result in mounting a 43 STC wall with 24 "blocks of organized crime.

Comparison of soundproofing plasterboard as QuietRock, creates a buffer structure and behaves differently from MLV. Laboratory tests on the agenda of soundproof drywall STC 50 or better when used on one side of a 24OC wood stud wall. And this stuff replaced on one side of gypsum board, saving time and money.

Low cost soundproof drywall today runs around of $ 1.20/sqft (and is available from local distributors). Labor is about $ 0.60/sqft. Thus the total cost of the wall may be less than $ 5.30 per square foot depending on required performance. No special training or work is necessary because it is installed as wallboard. The resultant performance is reduced noise by 50% (versus 15% for vinyl), the total cost is 30% less.

Resilient Channel is another technique that has been used since the 1960s. This involves hanging metal channels into the studs and then drywall to the channels. The cast should be isolated on all sides from touching the floor, walls or acoustic ceiling could "short" floating wall and reduce performance.

If done well, with a cast twice in the RC side, and no shorts, it is reasonable to achieve an STC 48. The cost of this wall is less than $ 6.00/sqft including labor. While the yield is lower than soundproof drywall and the difficulty is greater, is a method for adults that was popular before the arrival of soundproof drywall. Therefore, it may be worth still considered as an option.

Conclusion loaded mass vinyl has been sold for many years to help with sound insulation between rooms. They can provide limited increased STC values by adding additional mass and impedance changes to the wall. However, the effort, cost and detail necessary for the use of these materials must be compared with other more established and proven methods, including panel plaster soundproof and resistant channels.

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Acoustic Research Pro II Series PR-185N HDMI Cable (6 feet) List Price: $99.99 Sale Price: $43.13 You save: $56.86 (57%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description Main FeaturesManufacturer: Audiovox CorporationManufacturer Part Number: PR-185Manufacturer Website Address: www.Audiovox.comProduct Type: Cable External Features Improved connection from corrosion-resistant, precission made, 24K gold plated HDMI connectors Unique connector design for easier installation featuring molded grips and position indicator Constructed with dense multi-shields of overlappijng mylar foil and braided tinned copper for isolation from unwanted EMI Large 26 guage 99.97% oxsygen-free, copper conductors for fast accurate and detailed digital video signal transfer High bandwidth design improves picture quality and resolution while providing universal compatibility with HD audio/video components

Direct Sound EX29 Extreme Isolation Headphones (Black) List Price: $149.95 Sale Price: $99.95 You save: $50.00 (33%)   Eligible for free shipping! Availability: Usually ships in 24 hours See Reviews For This Product Description Direct Sound EX29 Extreme Isolation Headphones were invented by a prominent studio session drummer.After many long and frustrating recording sessions as a drummer in Studio City, CA, he knew there had to be a better way. Drummers, studio engineers, stage and studio musicians, and anyone who wants serious sound isolation, owe it to themselves (and their ears!) to check out this product.'I had to figure out a way to 'get my ears' next to the recording engineer in the control room. I knew this would save me a lot of time and the frustration of stopping to listen to takes and retakes in the control room. It would also save the studio a lot of money.''I began my development of EXTREME ISOLATION HEADPHONES in 1984. I was determined to develop high quality isolation headphones that were affordable to all. I have been using them ever since and subsequently discovered many more professional uses for these great headphones. EXTREME ISOLATION HEADPHONES are great for project studios, stage and studio musicians, sound engineers, or for solitude at home, office or a learning environment. Anywhere you want silence and comfort, your Extreme Isolation Headphones should come along. 'See Also:Extreme Isolation Headphone Hardshell CaseExtreme Isolation Headphones ApplicationsFor SOUND ENGINEERSto monitor the mixer board during live performances while isolating their ears from main speakers.For STAGE AND STUDIO DRUMMERSwho want to hear how drums are being mixed without having head-phones at high volume.Allows STUDIO MUSICIANSto hear only the studio mix during recording - eliminating costly return trips to the control room.For STADIUM AND DOME EVENTS- listen toLIVEbroadcasts at medium volume and bloc Features Frequency Response: 20 - 20,000 hz Drivers: 40 mm Impedance: 32 ohms Sensitivity: 114 db at 1000 Hz Cord: 9 feet

Acoustic Research Pro II Series PR-186N HDMI Cable (12 feet) List Price: $119.99 Sale Price: $36.62 You save: $83.37 (69%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description Main FeaturesManufacturer: Audiovox CorporationManufacturer Part Number: PR-186Manufacturer Website Address: www.Audiovox.comProduct Type: Cable ExternalCable Length: 12ftConnector Details: 1 x 19-pin HDMI-A Male , 1 x 19-pin HDMI-A Male Features Improved connection from corrosion-resistant, precission made, 24K gold plated HDMI connectors Unique connector design for easier installation featuring molded grips and position indicator Constructed with dense multi-shields of overlappijng mylar foil and braided tinned copper for isolation from unwanted EMI and RFI noise/interference (3-outer layers) Large 26 guage 99.97% oxsygen-free, copper conductors for fast accurate and detailed digital video signal transfer High bandwidth design improves picture quality and resolution while providing universal compatibility with HD audio/video components

Acoustic Isolation System: Passive Noise Reduction In-the-Ear Stereo Headphones-model:SolitudeAIS List Price: $47.50 Sale Price: $38.00 You save: $9.50 (20%)   Eligible for free shipping! Availability: Usually ships in 3-4 business days See Reviews For This Product Description The Solitude Acoustic Isolation System provides 42 decibels of noise reduction across the entire sound spectrum, allowing for the optimum level of comfort in extreme noise environments. Enjoy its high fidelity audio reproduction with your CD player or any Features With True Enhanced Performance. Latest Technical Development.

Acoustic Research PR-129 Pro II Series S-video Camcorder Cable List Price: $39.95 Sale Price: $2.49 You save: $37.46 (94%)   Eligible for free shipping! Availability: Usually ships in 24 hours See Reviews For This Product Description Main FeaturesManufacturer: Audiovox CorporationManufacturer Part Number: PR-129Manufacturer Website Address: www.Audiovox.comProduct Type: Audio/Video Cable ExternalCable Length: 6ftNumber of Connectors: 5Connector Details: 1 x 4-pin mini-DIN Male - S-Video, 1 x 3.5mm Male, 1 x 4-pin mini-DIN Male - S-Video, 2 x RCA Male Features For use with all digital camcorders with mini audio/video and S-video jacks when top performance is required Corrosion free gold-plated contact surfaces for improved performance; gas injected PE dielectric maintains proper impedance for enhanced performance Precision machined CNC connectors with precise and secure connection ensures minimal signal loss; unique mini A/V connector designed to fit a variety of digital camcorders Large gauge 99.97% oxygen-free copper conductors for accurate audio and video signal transfer; twisted pair balanced specially designed for audio signal integrity Constructed with dense multiple shields of 100% mylar foil and 95% tinned braided copper for isolation from EMI and RFI noise / interference

Acoustic Research AP-097 Performance Series Dvi Digital Video Cable List Price: $54.99 Sale Price: $29.99 You save: $25.00 (45%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description Item #: T41929. Cable: Video cableLength: 6 ftLeft Connector(s): 24 pin digital DVI - maleRight Connector(s): 24 pin digital DVI - maleAdditional Features: Gold-plated connectors Customers also search for: Technology\Consumer Electronics\AV Cables and Accessories\AV Cables Discount Acoustic Research Performance Series AP097 - video cable - 6 ft, Buy Acoustic Research Performance Series AP097 - video cable - 6 ft, Wholesale Acoustic Research Performance Series AP097 - video cable - 6 ft, 0079000328247, AP097N, AV Cables Features Corrosion resistant for improved connection, precision made gold-plated DVI connectors; unique design for easier installation featuring molded grips and oversized screws Dense multi-shields of overlapping mylar foil and braided copper for isolation from EMI and FRI noise/interference (2-outer layers) 28 gauge oxygen-free copper conductors for fast, accurate, and detailed digital video signal transfer Dual Link, high bandwidth design improves picture quality while providing universal compatibility with HD Video components Improved digital signal transfer accuracy through the use of high quality gas injected foam dielectrics

Acoustic Research PR-126 Pro II Series Composite Camcorder Cable List Price: $62.42 Sale Price: $3.99 You save: $58.43 (94%)   Eligible for free shipping! Availability: Usually ships in 24 hours See Reviews For This Product Description ACOUSTIC RESEARCH PR126N PRO II SERIES MULTI-SHIELDING CAMCORDER CABLE 6 FT Features For use with all digital camcorders and several digital cameras with mini audio/video jacks when top performance is required Corrosion free gold-plated contact surfaces for improved performance; gas injected PE dielectric maintains proper impedance for enhanced performance Precision machined CNC connectors with precise and secure connection ensures minimal signal loss Large gauge 99.97% oxygen-free copper conductors for accurate audio and video signal transfer; twisted pair balanced specially designed for audio signal integrity Constructed with dense multiple shields of 100% mylar foil and 95% tinned braided copper for isolation from EMI and RFI noise / interference

Acoustic Research Performance Series AP085N HDMI Cable (6 feet) List Price: $79.99 Sale Price: $48.57 You save: $31.42 (39%)   Eligible for free shipping! Availability: Usually ships in 24 hours See Reviews For This Product Description Precision made, corrosion resistant, gold-plated HDMI connectors for improves connection Dense multi shields of overlapping Mylar foil and braided copper for isolation from Electro Magnetic Interference (EMI) and Radio Frequency Interference (RFI) noise 28 gauge oxygen-free copper conductors for fast, accurate and detailed digital audio / video signal transfer High bandwidth design improves picture quality while providing universal compatibility with HD audio/video components High quality gas injected foam dielectrics improves digital signal transfer accuracy Unique connector design for easier installation featuring molded grips and position indicator Main FeaturesManufacturer: Audiovox CorporationManufacturer Part Number: AP-085Manufacturer Website Address: www.Audiovox.comProduct Type: Cable ExternalCable Length: 6ftNumber of Connectors: 2Connector Details: 1 x HDMI Male, 1 x HDMI Male Features Corrosion resistant for improved connection, precision made gold-plated HDMI connectors; unique design for easier installation featuring molded grips and position indicator Dense multi-shields of overlapping mylar foil and braided copper for isolation from EMI and FRI noise/interference (2-outer layers) 28 gauge oxygen-free copper conductors for fast, accurate, and detailed digital audio/video signal transfer High bandwidth design improves picture quality while providing universal compatibility with HD audio/Video components Improved digital signal transfer accuracy through the use of high quality gas injected foam dielectrics

Acoustic Research Noise-Isolating Ear buds ARE09 List Price: $57.85 Sale Price: $36.90 You save: $20.95 (36%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description Get the most out of your portable audio systems and experience personal entertainment at an entirely new level. High notes and bass lines reproduced with astonishing clarity. Rich, full-frequency tones so realistic, you’ll swear you’re in the front row at the concert. Plus, best-in-class noise-canceling technology means minimal background interruption. All delivered in stunning crystal clear definition through soft, silicone tips that were designed for maximum comfort and secure fit. These headphones are compatible with iPod/iPhone. Features Hear crystal-clear sound 8 mm driver Changeable eartips for custom fit and superior noise isolation Gold plated input connector Compatible with iPod, iPhone

Milian Acoustics SVT Studio Reference Isolation Headphones -- 1/4" Stereo TRS Plug List Price: $299.95 Sale Price: $199.95 See Reviews For This Product Description The SoundStage Series of Isolation Headphones from Milian Acoustics brings you the audiophile grade SVT. Designed with the studio professional and audiophile in mind, the SVT Isolation Headphones are built with the finest materials including an Sealed Bass Reflex Acoustic Speaker Chamber constructed of Authentic African Mahogany providing the richest natural timbre possible while still maintaining pinpoint accuracy. The hand crafted Milian Acoustics Oxygen Free Copper Headphone Cable is sleeved with supple weaved Nylon to reduce microphonics during handling, prevent tangling, as well as provide a gentle tactility not achieved by common headphone cables. With Total Harmonic Distortion measuring less than .2%, the SVT offers a jet black canvas for which even the subtlest elements of your music stand out with haunting articulation. This model comes with a premium quality Gold plated ¼ Inch stereo jack for use with studio mixers, samplers, mixing boards, and recording consoles as well as high end unbalanced audiophile amplifier setups. The SoundStage SVT from Milian Acoustics is also available with a premium quality gold plated 3.5 mm Mini Jack and a ¼ Inch adapter for use with portable amplifiers and listening devices. Custom Cabling is also available upon request. Features 30 decibels of Circumaural Noise Reduction 40 mm Titanium Neodymium Drivers Frequency Response: 15-25000 Hz - Sensitivity: 102 db SPL @ 1 kHz Impedance: 60 Ohms - THD: < 0.2% 6 Ft. Milian Acoustics OFC Sleeved Headphone Cable