Language (2) Voice (2) Holy Cross (2) Experiments (2) Speakers (2) Voice (2) Quality (2) Experiments (2) spectacle (1) représentation (1) papier (1) analyse (1) taux (1) Valence (1) Variation (1) Communication (1) Correspondence (1) Correspondence (1) English (1) Sounds (1) Signs and symbols (1) Signs and signboards (1) Resemblance (Philosophy) (1) Representative government and representation (1) Persons (1) Perception (1) Paper (1) Orators (1) Human beings (1) Letters (1)