What is reverberation (reverb)?
The sound wave that reaches the listener’s ear directly from the sound source is often referred to as the direct sound. These waves reach the listeners ears first in most acoustic environments. The first reflected sounds to reach a listener’s ears are called early reflections. Since they travel a longer path, the amount of time it takes the first reflected sounds to reach our ears give us clues as to the size and nature of the listening environment. Because the reflected sound may continue to bounce off of many surfaces, a continuous stream of sound fuses into a single entity, which continues after the original sound ceases. The stream of continuing sound is call reverberation. The rate of build-up of echo density is proportional to the square root of the volume of the room. The time-domain and frequency-domain reverb characteristics of an enviroment can be represented by its impulse response, which is equivalent to subtracting the original sound from its reverb and storing it. Combini
