Sound Demos.
Experience the difference noise control makes by listening to real-world acoustic transformations with our tested solutions, so you can hear the impact before you invest.
Hear the Difference of Noise Control
How to Use These Sound Demos
***Use high-quality headphones for the most accurate sound comparison***
The following clips demonstrate the relative differences in sound levels and characteristics to assist in understanding the subjective effects of soundproofing and reverberation control.
Baseline Audio
This playback file serves as a reference level for comparison.
-3 dB Reduction
A modest reduction demonstrating a very subtle but noticeable change in sound level, representing a 50% reduction in sound power as compared to the reference level.
-6 dB Reduction
This represents another 50% reduction in sound pressure from the reference level, resulting in a significant but not dramatic subjective reduction in noise.
-10 dB Reduction
This represents what most listeners consider to be "half the subjective volume" as compared to the reference level.
-20 dB Reduction
Approximately ¼ the subjective volume of the reference level.
Reverberation Time Demo: Small Room vs Large Venue
Large Venues
Reverberation time (RT60) measures how long sound takes to decay by 60 decibels after the source stops. Different environments have different reverberation needs: too long, and clarity suffers; too short, and the room seems "dead". Compare the clips below to hear how reverberation time shapes the acoustic character of a room.
Baseline Audio
This playback file serves as a reference level for comparison.
Arena – 5000 ms (5 Seconds)
Large arenas often have very long reverberation times, creating echo and reduced speech clarity.
Worship Space – 3500 ms (3.5 Seconds)
Many worship spaces are designed with moderate reverberation for music, but excessive reflections can make sermons harder to understand.
Community Event Space – 2000 ms (2 Seconds)
A shorter reverberation time supports clearer speech, ideal for multi-purpose worship spaces or community venues.
Lecture Hall – 1500 ms (1.5 Seconds)
Once reverberation extends beyond 1 second, spoken words can overlap, leading to listening fatigue.
Casual Dining – 1000 ms (1 Second)
Slightly longer decay can still work for small lecture halls, though clarity begins to diminish. Good for bars and casual dining.
Fine Dining – 500 ms (0.5 Seconds)
A short reverberation time supports clear speech intelligibility, ideal for intimate restaurant environments.
Small Room
Smaller spaces with acoustic treatment typically have shorter reverberation times. This creates clearer speech and improved intelligibility.
Arena – 5000 ms (5 Seconds)
Large arenas often have very long reverberation times, creating echo and reduced speech clarity.
Worship Space – 3500 ms (3.5 Seconds)
Many worship spaces are designed with moderate reverberation for music, but excessive reflections can make sermons harder to understand.
Community Event Space – 2000 ms (2 Seconds)
A shorter reverberation time supports clearer speech, ideal for multi-purpose worship spaces or community venues.
Lecture Hall – 1500 ms (1.5 Seconds)
Once reverberation extends beyond 1 second, spoken words can overlap, leading to listening fatigue.
Casual Dining – 1000 ms (1 Second)
Slightly longer decay can still work for small lecture halls, though clarity begins to diminish. Good for bars and casual dining.
Fine Dining – 500 ms (0.5 Seconds)
A short reverberation time supports clear speech intelligibility, ideal for intimate restaurant environments.
Sound Isolation Demo: Understanding STC
Sound isolation is commonly measured using Sound Transmission Class (STC), a rating that indicates how effectively a wall, door, or partition reduces airborne sound transmission between spaces.
In this demo, you will hear the difference between spaces separated by materials with increasing STC ratings. As the STC rating increases, less sound passes through the barrier. Lower STC ratings allow voices and noise to pass through easily, while higher STC assemblies significantly reduce speech intelligibility and perceived loudness.
These samples help demonstrate how improved wall assemblies and barrier systems can dramatically improve privacy and noise control between rooms.
In this demo, you will hear the difference between spaces separated by materials with increasing STC ratings. As the STC rating increases, less sound passes through the barrier. Lower STC ratings allow voices and noise to pass through easily, while higher STC assemblies significantly reduce speech intelligibility and perceived loudness.
These samples help demonstrate how improved wall assemblies and barrier systems can dramatically improve privacy and noise control between rooms.
Baseline Audio
This playback file serves as a reference level for comparison.
STC-25
Provides a modest reduction in airborne sound transmission compared to baseline conditions. Loud speech and general conversation may still be audible, but with reduced clarity.
STC-35
Provides moderate sound isolation relative to baseline conditions. Normal speech becomes less intelligible, though louder voices and activity may still be heard.
STC-45
Provides high sound isolation compared to baseline conditions. Loud speech is significantly reduced and difficult to understand; most typical noise is effectively controlled.
STC-55
Provides very high sound isolation relative to baseline conditions. Speech and most airborne noise are effectively inaudible, supporting environments requiring strong privacy and minimal sound transmission.
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