QuietCell™ Modular Test Environments

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We offer submittal packages for builders as well as professional installation.

Noise Barriers Modular Pre-Engineered Test Rooms provide properly silenced ventilation, evacuate heat, CO, and hydrocarbons. This ensures correct and stable airflow, a safe working environment, and sound reduction beyond conventional construction.

QuietCells include all materials necessary for your personnel to assemble a room within 2-4 days. Complete drawings and assembly instructions combined with our technical support make installation simple.

The Noise Barriers Modular System:

  • Facilitates more accurate testing
  • Produces a uniform test environment that duplicates like conditions
  • Creates a safer environment for test technicians
  • Indoor or Outdoor models
  • Easier to build than conventional construction
  • Predictable and guaranteed noise reduction
  • Custom designs to meet the requirements of your facility
  • Single source responsibility for design, supply and installation
  • Easy to assemble, relocate, or reconfigure
  • Lease options available
  • Tax benefits

Applications

  • Engine Test Cells
  • Chassis Test Cells
  • Motorcycle Test Cells
  • Aviation Test Cells
  • Containerized Test Cells
  • Endurance and Race Simulation Test Cells
  • Exterior Test Cells
  • Diesel Test Cells
  • Components

Product Features

Flexibility:

  • Unlimited size, design and features
  • Multiple panel types to meet your specific requirements
  • Interior or exterior use

Accessibility:

  • Single leaf and double leaf doors
  • Sliding doors, lifting doors, and bi-fold doors also available
  • Removable panels
  • Double glazed or projectile-resistant windows

Modular System:

  • System flexibility permits angled walls
  • Isolated floors are available
  • Silenced ventilation systems are designed to meet your specific requirement
  • Enclosures can be relocated or reconfigured at a later date
  • Pre-engineered modular system "kit" includes all components necessary to complete your noise control solution
  • All materials are non-combustible
  • Panels and connectors are constructed of A60 "paint- ready" Galvanneal steel
  • G90 spangled galvanized construction is available
  • Prime painting or finish polyester powder coat paint available in a wide selection of colors

Acoustic Performance & Specifications

Acoustical Performance Data
Sound Transmission Loss Data, dB

Octave Band Center Frequency, Hz 125 250 500 1K 2K 4K STC
QuietMod Panels
H/P 38 2" Thick 24 25 33 43 50 55 38
H/P 42 4" Thick 23 31 40 49 56 62 42
H/P 44 4" Thick 27 34 41 46 53 59 44
H/P 50 4" Thick 29 37 48 56 57 54 50
H/H 50 4" Thick 26 44 50 54 57 64 50
H/H 52 4" Thick 37 43 47 53 54 57 52
H/H 54 4" Thick 40 46 51 55 58 62 54
H/H 59 10" Thick 43 45 56 66 67 77 59
All tests performed by an independent NVLAP accredited acoustical testing facility. The test method conforms with ASTM Designations E90-99 or E90-02 and E413-87.

Octave Band Center Frequency, Hz 125 250 500 1K 2K 4K NRC
Sound Absorption Coefficients QuietMod Panels
H/P 38 2" Thick 0.26 0.53 1.00 1.03 0.97 1.02 0.90
H/P 42 4" Thick 0.68 1.06 1.12 1.08 1.03 0.98 0.95
(1.05)
H/P 44 4" Thick 0.45 0.96 1.15 1.10 1.05 0.97 1.05

Quiet MPR’s are field tested after installation and certified to be in compliance with the Maximum Permissible Ambient Noise Levels per ANSI S3.1-1999 (2003) and OSHA 1983 Specifications.

Noise Reduction - Out to In
Octave Band Center Frequency, Hz
125 250 500 1K 2K 4K NIC
Quiet Sound Studio Noise Reduction dB
31 39 48 52 70 60 50
Noise Reduction - In to Out
Octave Band Center Frequency, Hz
125 250 500 1K 2K 4K NIC
Quiet Sound Studio Noise Reduction dB
34 36 51 55 56 60 50
Noise Reduction - Room to Room @ 1" Apart
Octave Band Center Frequency, Hz
125 250 500 1K 2K 4K NIC
Quiet Sound Studio Noise Reduction dB
36 66 82 58 71 78 58
Noise Reduction - Room to Room @ 4" Apart
Octave Band Center Frequency, Hz
125 250 500 1K 2K 4K NIC
Quiet Sound Studio Noise Reduction dB
46 64 84 75 72 76 69
Noise Reduction - Room to Room @ 12" Apart
Octave Band Center Frequency, Hz
125 250 500 1K 2K 4K NIC
Quiet Sound Studio Noise Reduction dB
48 62 84 78 72 78 70

Please contact us for specific product specifications and descriptions. CAD drawings and configurations to meet special requirements are available upon request.

Telemundo's contractor, Restorations Unlimited contacted Noise Barriers' local rep, Tony Handley of Hollywood, Florida. to assist with sound stage doors.