Zamir 1k Questions 0 Answers 0 Best Answers 1k Points View Profile 0 ZamirProfessional Asked: November 12, 20202020-11-12T12:40:44+00:00 2020-11-12T12:40:44+00:00In: Sound The loudness is expressed in a unit called decibel. 0 The loudness is expressed in a unit called decibel. Share Facebook You must login to add an answer. Username or email* Password* Remember Me! Forgot Password?