The word "acoustic" is derived from the [[Greek]] word ακουστικός (akoustikos), [[meaning]] "of or for hearing, ready to hear"[1] and that from ακουστός (akoustos), "heard, audible"[2], which in turn derives from the verb ακούω (akouo), "I hear"[3]. The [[Latin]] synonym is "sonic". After acousticians had extended their studies to frequencies above and below the audible range, it became conventional to identify these frequency ranges as "ultrasonic" and "infrasonic" respectively, while letting the word "acoustic" refer to the entire frequency range without limit.[http://en.wikipedia.org/wiki/Acoustics] | The word "acoustic" is derived from the [[Greek]] word ακουστικός (akoustikos), [[meaning]] "of or for hearing, ready to hear"[1] and that from ακουστός (akoustos), "heard, audible"[2], which in turn derives from the verb ακούω (akouo), "I hear"[3]. The [[Latin]] synonym is "sonic". After acousticians had extended their studies to frequencies above and below the audible range, it became conventional to identify these frequency ranges as "ultrasonic" and "infrasonic" respectively, while letting the word "acoustic" refer to the entire frequency range without limit.[http://en.wikipedia.org/wiki/Acoustics] |