VOICE n. 3 definitions
speech or song in the consonants b, v, d, etc., and in the vowels; sonant, or intonated, utterance; tone; -- distinguished from mere breath sound as heard in f, s, sh, etc., and also whisper.
WHISPER n.
A low, soft, sibilant voice or utterance, which can be heard only by those near at hand; voice or utterance that employs only breath sound without tone, friction against the edges of the vocal cords and arytenoid cartilages taking the place of the vibration of the cords that produces tone; sometimes, in a limited sense…