When the technical equipment of the actor is considered, voice and speech are of paramount importance. The actor's art, it is true, consists of much more than the delivery of the lines, but take away the element of voice and very little is left. The actor makes use of the gift of voice and the acquired habit of speech, and some degree of proficiency in the day-to-day use of both has always been obtained before they are employed in the theatre. Voice and speech for the majority are haphazard affairs and the qualities that are essential for the actor cannot be acquired overnight, let alone during the process of rehearsal. In a violin, as in many other man-made instruments, the tone is determined by the skill of the craftsman who makes the instrument. The resonator possesses the additional function of impeding the free, open passage of the tone and in so doing forms the consonants of a language.