Pakistan, March 3 -- Sound is all around us. Humans listen and respond. Expression of views is fundamental right of all human beings. Noise attract and alerts all living beings including humans about potential dangers, music uplifts the spirit, laughter helps people bond, a crying infant alerts her mother about her needs. Above all of this is language; the primary distinction between Man and Beast. Human language is capable of conveying complex ideas, intricate feelings, technical instructions and the primary medium for the transfer of knowledge beyond boundaries and time. Estimates suggest that there are more than 7 thousand spoken languages in the world today, not to mention all the languages that have gone extinct throughout history. It ...