Show Air Affects Voice Quality Quant The sound of the human voice is isas isas isas as dependent for its pleasant qualIties qualities quail quail- ties upon the air as it is upon the organs which produce the sound Experiments were made by Dr Ernst Barany Darany of the University ol of Ups Upsala ala Sweden in which the air au- with which the lungs are normally filled was replaced by hydrogen The subject under experiment exhaled exhaled ex ex- haled baled air and breathed in hydrogen from a rubber bag Using the hydrogen hydrogen hydrogen hy hy- drogen as a medium for carrying the sound waves he spoke many test syllables which were studied inmany in inmany inmany many ways and compared with the sounds produced when air was breathed The lighter gas in the body cavities caused some of the sound frequencies in the voice to tobe tobe tobe be raised one to two octaves Test listeners were able to understand only about two-thirds two of the syllables syllables sylla sylla- bles ble spoken |