SoundFix Sound Guide

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Why Use SoundFix Bass Traps?

Why Use SoundFix Acoustic Tiles?

Low frequencies or bass contain much more energy than mid to high frequency sound waves. As such, thicker acoustic foam is required to absorb low frequency energy. Bass traps are an ideal way of managing unwanted low frequency sound waves which cause sound interference. Bass is much more likely to become trapped in room corners and reflect between the surfaces. Our precision engineered bass traps prevent this.

We can utilise the properties of acoustic foam to absorb great deals of energy at reflection points. In this diagram, you can see how the energy of a primary reflection is reduced when using a SoundFix acoustic foam tile. The left ear receives much more energy than the right ear does. With an NRC rating of 0.85, as much as 85% of sound energy is absorbed by the acoustic tile.

SoundFix Acoustic Tile Range SoundFix Bass Trap Range

Available in multiple colours.

Available in multiple colours.


SoundFix Sound Guide

What is a Standing Wave?

About Early Reflections & Reverberations

By understanding the way in which sound works in your recording room, you’ll be able to benefit the most from your acoustic foam. The diagrams below outline such topics as reflections, reverberation, direct and indirect sound, flutter echoes and more.

A standing wave (otherwise known as a room mode) occurs when a reflected sound wave combines with a direct sound wave. This tends to occur when one or more of the rooms dimensions is a direct multiple of a sounds wavelength. If two waves are of the same frequency they are said to be in-phase. The result, we will hear both waves at the same frequency, but as they are combined they will have a higher amplitude.

In a smaller confined room, reflections are usually so close together that we cannot perceive them individually; we call these early reflections. The effect because of this is commonly referred to as reverberation or “reverb” for short. Even in larger recording rooms however, this effect can still take place. Eventually, sound reflections will evolve into reverb as they become increasingly more complex.

What is Stereo Image Confusion?

What are Flutter Echoes?

Some sounds can lead to stereo image confusion. For example, if indirect sound was to reflect from the left speaker into your right ear, it could lead to confusion during a mix. By correctly positioning acoustic foam tiles on your wall, you can easily prevent stereo image confusion from occurring.

Flutter echoes occur when sound is reflected between two parallel surfaces. Sound waves continue to move back and forth as you can see from the diagram below. We perceive this as a fast, digital delay, which reduces sound clarity when mixing. A good recording using a microphone can be ruined by the presence of flutter echoes.

What is Direct and Indirect Sound? All sound that we hear is made up of a combination of direct and indirect sounds. Direct sound is delivered to your ear straight from the sound source. Indirect sound on the other hand is reflected into your ear; off a wall for example.

What are Primary Reflections? A Primary reflection is a sound wave which has only reflected off one surface. They are known to cause the most interference to the way we perceive sound. Having only bounced from a singular surface, primary sound waves still contain a large amount of energy. They also occur very soon after we detect direct sound, which causes us to hear both sources together. This is known as “Phase Cancellation” which causes some frequencies to be perceived as unusually quiet. This can lead to mistakes being made in the mixing process.

If you’d like to discuss any SoundFix products in greater detail or simply need advice on using them, contact us today. We’re always happy to help! 01494 44 11 77

sales@soundfix.co.uk

www.soundfix.co.uk


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