title: Seeing a voice: Rudolph Koenig's instruments for studying vowel sounds.
authors.affiliation: Dibner Institute for the History of Science and Technology, MIT, USA.
authors.forename: David
authors.initials: D
authors.lastname: Pantalony
mesh_terms: D004867:Equipment Design; D005197:Famous Persons; D005602:France; D049672:History, 19th Century; D010700:Phonetics; D010825:Physics / Q000266:history / Q000295:instrumentation*; D013061:Speech Acoustics; D013067:Speech Perception; D014796:Visual Perception; D014831:Voice