# What do echo and reverbation have in common?

• annalian
In summary, echo and reverberation are both caused by the reflection of sound waves when they meet a hard surface, resulting in a repetition of the sound. They both have the same speed and length as the original sound waves, and can occur when the environment does not change. The main difference between them is that an echo is a single reflection while reverberation is multiple reflections.
annalian

## Homework Statement

What do echo and reverbation have in common?

## Homework Equations

We can hear sounds with a difference of 0.1 seconds. Speed of sound 340 m/S. the distance the sound travels is 34 m. the distance from the wall is 17m.

## The Attempt at a Solution

They are the reflection of sound waves, they are formed when sound waves meet a hard surface, they cause a repetition of the sound. The waves keep having the same frequency (the source doesn't change); They have the same speed and length as they had before the reflection, because the environment doesn't change. Is there anything else?

Last edited:
You don't answer the original question: What do echo and reverberation have in common?

What has to be different in the environment to cause an echo versus a reverberation? Why?

Now, what is the common factor?

## 1. What is the difference between echo and reverberation?

While both echo and reverberation involve the reflection of sound, they differ in their timing and intensity. Echo is a distinct repetition of a sound, while reverberation is the persistence of sound due to multiple reflections. In other words, echo is a single reflection, while reverberation is the accumulation of multiple reflections.

## 2. Do echo and reverberation have the same effect on sound?

No, they do not have the same effect on sound. Echo can often be perceived as a distinct sound, while reverberation can add depth and richness to the overall sound. Reverberation can also help to blend and smooth out different sounds, while echo can create a sense of space or distance.

## 3. How are echo and reverberation created?

Echo is created when sound waves reflect off of hard surfaces and return to the listener's ear. Reverberation is created when sound waves reflect off of multiple surfaces and continue to reflect until they eventually fade away.

## 4. Can echo and reverberation be controlled or adjusted?

Yes, both echo and reverberation can be controlled and adjusted in various ways. For example, the distance between the sound source and the reflecting surface can affect the timing and intensity of the echo. Reverberation can also be controlled by adjusting the size and shape of the space in which the sound is produced.

## 5. Are echo and reverberation always present in sound?

No, echo and reverberation are not always present in sound. They are more likely to be present in environments with hard surfaces that can reflect sound waves, such as a large empty room. In contrast, a small, soft room may not produce much echo or reverberation.

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