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Factors that lead to Noise Control in a Building - Best Acoustic Consultants in KSA

 

Providing Best Acoustic Consulting Services in Saudi Arabia KSA.

Acoustic Consultants KSA


There are various factors and conditions that lead to acoustics of a building such as reverberation time, loudness, focusing, echo, echelon effect, resonance, and noise...etc..

What is Reverberation Time?

Reverberation is considered as one of key factors by many of professional acoustic consultants in Saudi Arabia (KSA) and it is the persistence of sound in a room, hall, stadium or any space even after the source stopped emitting sound.

Reverberation duration refers to the period it requires for sound to diminish to a level that is just perceptible. To achieve excellent acoustics, it is essential to maintain the reverberation duration at an ideal level.

If the reverberation duration is overly brief, the sound will be too faint and lacking in richness. Conversely, if the reverberation duration is excessively prolonged, the sound will become indistinct and muddled. This is because sound waves will persistently bounce within the room, overlapping and interfering with each other.

Loudness

Ensuring a consistent distribution of sound volume within a hall or room is a crucial element for achieving a satisfying listening experience. Occasionally, excessive use of sound-absorbing materials within such spaces can lead to a reduction in loudness.

The existence of concave or curved surfaces within a hall or room can lead to sound concentration in specific focal areas. Consequently, sound may become inaudible in other regions, which are commonly termed as dead zones. Therefore, it is advisable to steer clear of such surfaces.

Moreover, it's important to prevent the interference between direct and reflected waves. This is because constructive interference can result in maximum sound intensity at certain points, while destructive interference can lead to minimum sound intensity at others. As a result, an uneven distribution of sound intensity can occur.

Echo

An echo results from the sound bouncing off a remote, sound-reflecting object. When the time gap between the initial direct sound and the reflected sound is shorter than 1/15th of a second, the reflected sound enhances the overall loudness. However, sounds arriving later than this threshold can create confusion.

Echelon Effect

This phenomenon pertains to the creation of distinct additional sounds resulting from multiple echoes. When a series of railings or any uniformly reflecting surface is present, it is known to produce the echelon effect. This effect can influence the original sound's quality.

Resonance

Resonance arises from frequency synchronization. When the window panels and sections of wooden components are not securely assembled, they can begin to vibrate, producing an additional sound alongside the one originating in the hall or room.

Noise

Adequate soundproofing is essential for the hall or room to shield it from both external and internal sources of noise. Typically, there are three primary categories of noise:

Airborne Noise

These are unwanted sounds infiltrating from the outside through open windows, doors, and vents, categorized as airborne noise. To mitigate airborne noise, consider implementing the following solutions.

Structure-borne Noise

Noise that transmits through the building's structure is known as structure-borne noise. Such vibrations can arise from factors like street traffic or the operation of heavy machinery.

Interior Noise

Sounds originating within the confines of the hall or room are referred to as interior noise. This type of noise can result from various sources such as machinery (e.g., air conditioners, refrigerators, exhaust fans), as well as office equipment like typewriters.

As a leading acoustic consultant in Saudi Arabia, DSP Consultants provide A to Z consultancy services for noise reduction and creating a pleasant environment as per KSA standards and codes.

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