We manufacture an extensive range of industrial acoustic curtain panels tailored to your noise objectives and budgetary constraints.
While AmCraft’s acoustic curtains have a specified average sound transition loss (STC) and noise reduction coefficient (NRC), these are averages obtained in a controlled environment. When it comes to sound every application and or situation is different. There are multiple variables that need to be considered, such as the size of the room, the type of sound, the room layout, and surfaces within the room. Due to this, the results may vary on the actual amount of sound reduction that will be achieved. We recommend contacting a professional sound engineer to work with you on what would be the best solution for your situation. AmCraft can give you recommendations based on experience and case studies showing a proven track record of our acoustic products working.
In this case, if there is a 100 decibel sound and it is reduced by 10 decibels, the new sound level would be around 90 decibels. The reduction of 10 decibels would make the sound appear to be about half as loud to the human ear compared to the original 100 decibel sound.
It’s important to note that perceived loudness can vary depending on various factors, including individual sensitivity and the nature of the sound itself. Additionally, the perception of loudness is not a linear relationship with decibel levels, but rather follows a logarithmic scale. As a result, small changes in decibels can have significant effects on our perception of loudness.
Frequency matters when trying to reduce noise because different frequencies have varying characteristics and can be perceived differently by the human ear.
Sound is made up of vibrations or waves that travel through a medium, such as air. These waves have different frequencies, which determine the pitch or tonal quality of the sound. Low-frequency sounds have lower pitches, while high-frequency sounds have higher pitches.
In general, higher frequencies are more easily absorbed and blocked by softer materials, while lower frequencies require denser barriers for effective sound blocking. However, it’s important to note that the effectiveness of materials can vary based on their specific properties and the construction of the barrier or absorptive system.
When it comes to disturbing noises, they can indeed encompass a combination of low and high frequencies. Therefore, employing a combination of soft and hard materials can be a suitable approach to effectively block and dampen the noise.
AmCraft offers a diverse selection of retractable and stationary acoustic curtains. These curtains are specifically designed to block and dampen unwanted noise, providing customers with a wide range of options to address their specific needs and requirements.
To effectively manage noise, it is crucial to address all surfaces within the room. Noise tends to reflect off various hard surfaces, including ceilings, walls, shelves, machinery, and floors. By incorporating wall, ceiling, and corner baffles, the noise can be dampened, allowing soft materials to absorb and trap the sound before hitting the hard surfaces.
In addition, covering the flooring with rubber mats or carpets can further contribute to noise reduction.
If you are planning to enclose the source of the noise, it is essential to seal all edges tightly. This prevents sound leakage and ensures maximum effectiveness. Additionally, incorporating baffles within the enclosure is highly recommended. Baffles help dampen and reduce the overall noise within the enclosure, providing further control over sound levels.
While our acoustic curtains/panels are primarily designed for indoor use, we have received positive feedback from customers who have utilized them for outdoor or semi-outdoor applications. It is important to note that the warranty provided for our acoustic curtains is limited to indoor usage. However, we are pleased to inform you that our curtains have demonstrated satisfactory performance.
AmCraft has an extensive network of installers located throughout the United States, ensuring that we can recommend the most suitable one for your facility and location. AmCraft does not install, but it’s worth noting that 85% of our customers opt to have the curtain system installed by their own maintenance crew or themselves. This is because our systems are designed to be user-friendly, and we provide a comprehensive set of installation instructions along with the curtain shipment. Our knowledgeable staff is always available to assist you with any questions that may arise during the installation process. Our dedicated sales team will work diligently to ensure that we find the best installer for your specific needs and location.
Decibels and frequency are both terms used to describe sound, but they represent different aspects of sound.
A Decibel describes the intensity or loudness of the sound levels. A logarithmic scale is used to define the amount of sound pressure being omitted to create the decibel level of the sound. (We also explain about Logarithmic scale in one of our FAQ) The higher the decibel level, the louder the noise is to the human ear.
Frequency refers to the pitch or frequency of sound waves, representing the number of cycles occurring per second, measured in hertz. Addressing both low and high frequencies becomes necessary when attempting to reduce noise in an area, as most noises encompass a range of frequencies.
Hanging the industrial sound dampening curtain panels to fit as an acoustic accordion door increases the overall audible absorption by defusing acoustic energy from parallel surfaces in the room.
Add industrial double barrier acoustic panels or industrial acoustic baffles to offer soft surfaces for the sound to absorb before reaching the hard surfaces in the room.
Dual Sided Absorption panels mostly used to be hung in front of hard surfaces for the sound to absorb in before getting reflected.
Free Hanging Baffles hung from the ceiling structure above the noise source to absorb the loudest noises as soon as possible.
Corner Baffles ready to absorb the collected acoustic energy in the corners.
NRC (Noise Reduction Coefficient) – used to measure noise reduction (through absorption) in the same space as the noise source. STC (Sound Transmission Coefficient)- measures the Decibels loss of the sound going through an object.
NRC (Noise Reduction Coefficient) – used to measure noise reduction (through absorption) in the same space as the noise source. It is basically
a measurement of how well something absorbs sound, mostly in the range of normal speech frequencies. It is measured from 0 – 1.0 and can
be thought of as a percentage. The higher the NRC, the better it is at absorbing sound.
Example: A painted drywall wall has NRC of about .05, so it absorbs only about 5% of the sound that hits it and reflects back 95% of
the sound.
STC (Sound Transmission Class) – A rating of how well a material/product attenuates sound. In simpler terms, it is how well an item blocks sound from going
through it. The higher the STC rating, the better sound isolation the wall will achieve. The STC rating is derived by measuring the transmission loss in dB at
certain frequencies and comparing it to a known STC curve.
Example: A metal stud wall with ½ in. thick drywall has an STC of 34. Cinder Block walls have an average STC of upper 40’s to low 50’s.
An STC rating in the upper 40’s is good. STC ratings in the 50’s are excellent.
Putting an exact number on decibel reduction by placing our Acoustic Accordion Curtains / Panels for a particular space is difficult.
The matrix below can help you to give our sales team how you perceive the unwanted noise and recommend which of our industrial noise control curtains can be a solution.
At AmCraft Industrial Curtain Wall, our team works diligently to find the right sound-dampening curtain panels to keep noise levels down. Whether you’re looking to reduce noise levels by 10 dBs to up to 25 dBs, our acoustic accordion curtains provide the solution you need. Request a quote from our expert team today.
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