An echo is a repetition or imitation of sound . When sound waves hit a hard surface they might reflect, making the sound bounce and repeat. ... You were frightened when you thought someone was following you, until you realized you were only hearing the echo of your own footsteps.
What is echo in simple words?
1 : the repetition of a sound that is caused by reflection of sound waves. 2 : the sound that is due to reflection of sound waves. Other Words from echo. echo verb echoed; echoing ˈek-(ˌ)ō-iŋ, ˈek-ə-wiŋ
What is echo explain?
An echo is a repetition or imitation of sound . When sound waves hit a hard surface they might reflect, making the sound bounce and repeat. ... You were frightened when you thought someone was following you, until you realized you were only hearing the echo of your own footsteps.
What is an echo of a person?
An echo test is an ultrasound of the heart . It uses high-frequency sound waves to produce images of the heart’s valves and chambers so that doctors can see how your heart is functioning.
What is an example of an echo?
Echo is defined as a sound repeating by sound wave reflection, having a lasting or far reaching impact, or repeating what someone else has said. An example of echo is the repeating of a sound created by footsteps in an empty marble hallway . ... An example of echo is a teacher agreeing with and repeating what a parent says.
What is the importance of echo?
The echo is used in the determination of sea depth and fish shoals , detecting the industrial defects, locating the position of surfaces and barriers, and it is used in the medical diagnosis.
How does echo happen?
This phenomenon is called an echo, which has its origins in the Greek ekho, meaning “sound.” An echo happens when a sound wave reflects off a surface, such as the water at the bottom of a well, and the sound is repeated back to you . ...
Why is it called an echo?
The word echo derives from the Greek ἠχώ (ēchō), itself from ἦχος (ēchos), “sound”. Echo in the Greek folk story is a mountain nymph whose ability to speak was cursed , leaving her able only to repeat the last words spoken to her.
How do you use word echo?
- The only response was the echo of an unanswered ring. ...
- He listened, but heard only the echo of his call. ...
- Nothing to echo off of, she supposed. ...
- His groan brought an echo from the depths of her soul and she pressed closer. ...
- The echo of little voices inspired several snickers from around them.
Can echo detect heart blockage?
Your doctor might recommend a stress echocardiogram to check for coronary artery problems. However, an echocardiogram can’t provide information about any blockages in the heart’s arteries .
How long does an echo take?
A standard echocardiogram or a fetal echocardiogram test usually takes about 30 to 60 minutes . A stress echocardiogram usually takes between 60 and 90 minutes.
What is difference between ECG and echo?
Although they both monitor the heart, EKGs and echocardiograms are two different tests. An EKG looks for abnormalities in the heart’s electrical impulses using electrodes. An echocardiogram looks for irregularities in the heart’s structure using an ultrasound .
Is reverb same as echo?
Here’s a quick explanation: An echo is a single reflection of a soundwave off a distance surface. Reverberation is the reflection of sound waves created by the superposition of such echoes. ... An echo is usually clear and can be easily distinguished because of the distance and time the sound wave travels.
What is echo sounding used for today?
Echo sounding is a type of sonar used to determine the depth of water by transmitting acoustic waves into water . The time interval between emission and return of a pulse is recorded, which is used to determine the depth of water along with the speed of sound in water at the time.
What causes an echo in a room?
An echo is caused by sound waves bouncing off a hard surface so that you hear the same sound again . Large rooms in homes can create echoes, especially if the room has mostly hard, bare surfaces, high ceilings or does not have much furniture.
What is an echo what can you do to stop the formation of an echo?
- Cover the Floor. Carpets and rugs do more than provide soft padding for your feet. ...
- Cover the Walls and Windows. Wall and window coverings reduce the amount of sound reflecting off window glass and hard wall surfaces. ...
- Fill Rooms with Furnishings. ...
- Install Acoustic Panels.
