Testing Acoustic Fabric Performance
At SRND Group, we take objective performance seriously - we have a dedicated test lab at our facility in Yorkshire.
The lab is 100% light-controlled and has been fitted with black fabric walls to minimise acoustic and visual reflections.
Testing the insertion loss of fabrics is a key requirement for us. We need this data to verify Display Technologies' image surfaces and the fabrics used in Fabric Walls room solutions.
We have created an innovative test rig that allows us to analyse the insertion loss to accurately match the real-world use case where the fabric separates the listener from the speaker.
Acoustic Fabric Testing Rig
Our Acoustic Fabric Testing rig consists of:
- KRK Classic 5 Active Speaker
- Mini DSP Umik-X 16 microphone array
- 90cm fabric frame with fixed base
- Fully adjustable speaker mounting platform with defined presets
The speaker mounting platform ensures the fabric under test is correctly positioned relative to the microphones and speaker. The microphone can move in a 60-degree arc for flexible off-axis testing. The speaker can slide back and forth to test the impact of changes in the speaker to fabric distance.
Using the 16-microphone array allows us to capture both on and off-axis data simultaneously. With every measurement, the array delivers data across a window of approximately 40 degrees in the horizontal and vertical axes.
The data of the 16 microphone captures is averaged within REW to create a power response measurement that captures both directly on and off-axis acoustic data.