To simulate the sound reflections in an acoustic space effect in game, you can use the Wwise Matrix Reverb plug-in. This plug-in effect has been created specifically for game developers who need optimized performance and great quality. Its unique controls allow you to balance the quality of the reverb with the CPU and memory usage so that you can achieve the best results within the restraints of your game and platform. Although this reverb plug-in uses less CPU than the RoomVerb effect plug-in, it has fewer controls available, which can make it more difficult to create realistic results.
The Wwise Matrix Reverb plug-in considers all of the following concepts in its algorithm:
Direct sound - A sound wave that travels directly to the listeners ear and is not reflected off any surfaces. Most sounds are naturally reflected off walls or ceilings.
Early reflections - The first handful of sonic reflections produced by a sound. These reflections provide the brain with information about surfaces they have reflected from, and can give the listener an idea of the position of the sound source in relation to these surfaces.
Reverb tail - The remaining sonic reflections that occur as the sound waves continue to reflect off surface materials.
Echo density - The amount of echoes per second produced by the reverberation algorithm.
Modal density - Modes are the peaks in the frequency domain representation of an audio signal. Increasing the modal density improves the realism of the reverberation when simulating most acoustic spaces. Decreased modal density can cause ringing sounds.
Delay line - An algorithmic process that simulates the time taken for sound to propagate over varying distances. Increasing the number of delay lines increases the modal and echo density of the reverb.
Delay lengths - The time interval between the moment a sound enters and exits a delay line. Increasing delay lengths will augment the modal density but decreases the echo density.
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Note |
Currently, this Effect does not work with ambisonics. If used on an ambisonic voice or Bus, it will not initialize.
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Wwise Matrix Reverb Properties
Many of the Wwise Matrix Reverb properties can be edited in real time and can be mapped to specific Game Parameters using RTPCs.
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