Skip to main content


Table 1 The five MOS questions and the rating scheme

From: Acoustic-visual synthesis technique using bimodal unit-selection

Question Rating
Q1 - Does the lip movement match the pronounced audio speech? (5) Always - (1) Never
Q2 - Is this sentence an affirmation (neutral reading)? (5) Totally agree - (1) Not at all
Q3 - Does the voice sound natural? (5) Very natural - (1) Not natural
Q4 - Does the face-only looknatural? (5) Very natural - (1) Not natural
Q5 - Is the pronunciation of this sentence by the talking head pleasant? (5) Very pleasant - (1) Not at all