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Acoustic Home

Retractable Acoustic Curtain Wall
Retractable Sound Absorbing Panels
Sound curtain
Acoustic Sound Baffles
Acoustic baffle systems
Gymnasium Baffle System

AmCraft Manufacturing’s industrial acoustic curtains, acoustic enclosures, and other noise products are manufactured to reduce noise throughout the application area. We offer several curtain options with varying sound dampening properties to suit an array of needs.

We are equipped to work with OSHA compliance situations or informal noise containment. There are two main factors to consider when determining which kind of sound reducing acoustic curtains will meet your needs. These main factors are:
  1. TYPE OF NOISE SOURCE. To classify your unwanted noise source, please see the everyday noise comparison chart below.
  2. Is the size of your noise source SMALLER or LARGER than a 2-car garage? With the approximate frequency and decibel level, we can address your situation more effectively.

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Acoustic curtains for sound and noise reduction

Sound, if unwanted and/or in excess, becomes noise. AmCraft Manufacturing’s expertise is the containment of unwanted noise. The best sound dampening acoustic curtain is permanently constructed and designed specifically to contain/control noise. However, in most unwanted noise situations, permanent construction is either not an option or does not fit into the budget. AmCraft manufactures sound attenuation curtains for industrial applications in several forms, which are retractable, easily configured to fit in any existing space, and cost efficient. An acoustic enclosure utilizes sound curtains as acoustic curtain walls to construction a formidable acoustic containment room by trapping noise within the enclosure – or by creating a “quiet” room by keeping noise out of the enclosure.

Reduce, Dampen or Absorb Sound with Industrial Acoustic Curtains

Industrial acoustic curtains or noise control curtains are general terms describing a retractable/moveable combination of sound-absorbing and/or blocking materials hung like curtains from stationary or moveable ceiling mounts. Since noise is an “energy,” it has to be consumed through a combination of absorption, blockage, and/or bouncing. This can be done with sound reducing curtain systems. Many times, industrial acoustical curtains can be utilized to form a complete acoustic enclosure, containing the sound in a space, or acoustically enclosing an area so any ambient noise in the outer workspace does not interrupt processes within the enclosed area.

The rule of thumb is: the higher the noise level, the thicker your industrial sound curtains need to be. That being said, at a point effective sound attenuation becomes stationary is when the acoustic curtain wall increases in thickness. Frequency (high or low) also impacts the sound reduction equation.

Decibel (dB) and frequency impact acoustics

  • The terms dB and frequency describe sound level and the number of cycles of a sound wave in one second.
  • To give you a clear idea of the technical terms used to describe facts about hearing and noise, we have collected some key facts about dB and frequency.
  • Frequency is sound description. The frequency of a sound is the number of cycles of a sound wave in one second. The unit of frequency measurement is hertz (Hz). The frequency of a sound increases as the number of cycles per second increase.
  • The smaller the period of time, the higher the frequency and vice versa, with the top waveform having the lowest frequency and the bottom waveform having the highest frequency. Lower frequencies are more difficult to contain or block than higher frequencies.
  • Vibrations between 20 and 20,000 cycles per second are interpreted as sound by a normal healthy person. A high-pitched sound could be a piccolo flute or a bird singing. Low-pitched sounds could be thunder heard from far away or tones from a bass guitar.the enclosed area.

Sound Waves

Decibel (dB) is a measurement of sound.The term (decibel) and the dB scales are used worldwide for the measurement of sound levels. The decibel scale is a logarithmic scale where a doubling of sound pressure corresponds to a 6dB increase in level.

It is important to realize that the term “dB” can have different values and is not a fixed value (i.e. volt, meter, etc). The value of a dB depends on the context in which it is used.

Here are some examples of different sound intensities as expressed in dB (HL*):

  • 180 dB: Rocket at take-off
  • 140 dB: Jet engine at take-off
  • 120 dB: Rock band
  • 110 dB: Loud thunder
  • 90 dB: City traffic
  • ** 85 dB OSHA Limit on Occupational Noise Exposure **
  • 80 dB: Loud radio
  • 60 dB: Ordinary conversation at close range
  • 30 dB: Soft whisper
  • 0 dB: Softest sound a person can here

AmCraft provides a unique line of acoustic barrier and sound-absorbing products that, when used in conjunction with each other, can optimize the effectiveness of reducing reverberation / sound reflections and reducing noise to create a comfortable, safe environment for employees and workers. Industrial sound divider curtains address your noise issues and may be accompanied by acoustic wall panels, noise-absorbing ceiling baffles, and / or create an acoustic enclosure for sound reduction purposes.

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