If a reflected sound wave reaches the ear within 0.1 seconds of the initial sound, then it seems to the person that the sound is prolonged. The reception of multiple reflections off of walls and ceilings within 0.1 seconds of each other causes reverberations - the prolonging of a sound.
make an echo
When the sound is reflected.
Sound can be reflected off things - a reflection of sound is called an "echo" and can be heard.
reflected sound is either reverberation or echo
a reflected sound is an echo
make an echo
When the sound is reflected.
Sound can be reflected off things - a reflection of sound is called an "echo" and can be heard.
Within range which sound may be heard.
reflected sound is either reverberation or echo
a reflected sound is an echo
earshot
The result of a reflected sound wave is obviously an echo.
When a sound wave is reflected, you hear an echo.
When the sound waves are reflected, the result in the producing of an echo.
a reflected sound is an echo
'The sound of the bells were heard' is grammatically correct.