2.Beautifully arranged with an acoustical treasure trove of flutes, singing bowls, cello, percussion, didgeridoo, jembe, piano, accordion and vocals, this is an aural journey not to be missed.
5.Fundamental acoustical features including tempo, pitch and timbre seem to be responsible for the similar responses of the Canadians and the Congolese Pygmies.
6.As an acoustical phenomenon, an octave is defined as the interval in which the vibrational frequency of the bottom note is half that of the top note.
7." It works on the same principle, so it detects noise that's coming into the windows and then is cancelling the noise." Bhan Lam, an acoustical engineer at Nanyang Technological University in Singapore.