Installing room acoustics using a blended approach

One of the challenges of room acoustics , regarding simulation and installation, is precisely remodeling a room over the whole frequency range. This post discusses a blended approach for installing the acoustics of the room where the results from multiple techniques are incorporated into a single model, thereby enhancing precision and maintaining viability. Let us learn how this can be done.

Room acoustics review

Here we will discuss how the first two techniques can be blended to get a broadband impulse response for a room.

Response of room impulse

Imagine that an air-filled balloon is popped in a room while microphone at some other location in the room records the pressure of the acoustic solutions as a function of time. The microphone will get direct sound from the first wavefront and also a superposition of all reflected signals from the waves travelling and bouncing off the ceiling, floor, walls and other objects in the room.

Remodeling the room

While installing the floating ceilings of a room, a simulation engineer should pay attention to both the metric scales and acoustics to determine the precision and viability of a remodeling approach. In the Acoustics Module, the modal behavior, and low-frequency of a room can be remodeled with the finite element technique using the Frequency Domain Interface and the Pressure Acoustics.

Pressure acoustics

Ideally, we may like to remodel the room using wave-based methods throughout the entire frequency range, but this might not be at high frequencies die to mesh needs.

Try it on your own

Here, we have displayed one approach for getting a broadband impulse response by blending finite element and ray-tracing techniques. All the modeling is completed in O'Neill Engineered Systems and the solutions are incorporated into a single model. The approach is specifically beneficial for big rooms while sing full wave techniques at high frequencies might not always be viable. Try it on your own today.