article_snippet.sent: The research said that echoes and fluctuations in volume are the cues
article_snippet.sent: The researchers suspected that the effect echoes had on volume - or amplitude modulation - could be key in our ability to perceive a sound's distance from us.
article_snippet.sent: The farther away the source of a sound is from a listener, meanwhile, the more echoes there are, and the more limited the changes in volume become.
article_snippet.sent: The researchers say that the effect echoes have on volume - or amplitude modulation - could be key in our ability to perceive a sound's distance from us.
article_snippet.sent: Without amplitude modulation, for example in an anechoic (echo-free) room, pictured, a person can't tell how far away a noise is from them .
article_snippet.sent: Without amplitude modulation, for example in an anechoic (echo-free) room, a person can't tell how far away that noise is. '
article_snippet.sent: Reverberation is usually considered a bad thing,' detrimental to hearing clearly, said Dr Shigeyuki Kuwada, co-author on the University of Connecticut study. '
highlights_snippet.sent: University of Connecticut study said that listening to echoes tells University of Connecticut study how far something it .
  
highlights_snippet.sent: When a sound is close the differences in max and min volume are obvious .
  