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Dr. Milton Metfessel demonstrating the respiration transmitted to the phonoscope through the rubber tube - voice transmits itself to the undulagraph through the large receiver

RECORDING DEVICE

E&MP 89.005

Music Recording

no date

(Figure 3) Picture showing the machine and its inventor, Dr. Milton Metfessel, National Research Council Fellow at the University of Iowa.

The apparatus is recording simultaneously the singer's breathing and his voice.

His respiration is transmitted to the phonoscope through the rubber tube around his waist. His voice transmits itself to the undulagraph through the large receiver he holds in his hand.


Original Caption by Science Service
© K&E Photo



National Museum of American History

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