Acoustic Visualization Testing
Acoustic insulation testing is performed by using a loudspeaker in the sending room, and record the sound pressure level (SPL) with microphones in both the sending and receiving room. The difference in SPL adjusted for the size of the dividing wall element will then give an estimate of the sound reduction quality of that element. However these measurements will not say anything on where any potential weaknesses, or cracks and gaps, exist in the wall element under inspection. After all, when an acoustic camera is placed in the receiving room, these defects on the elements can be visualized . We call it as visualization of the voice. Furthermore, it is used in the open fields to measure the sound level in real time on the structure to be scanned and to determine the undesired weak locations at the same time.