Show Singing Can Be Photographed Says Scientist WASHINGTON April 26 APA AP APA AP AP- A demonstration that th the singing aswell aswell as well veil as the singer can be photo- photo photographed graphed and anti measured with scientific eden selen title itic precision was given last night by y Dr Carl E. E Seashore of ot the University University University Uni Uni- of Iowa in the concluding lecture of ot the annual mee meeting of ot the he National Academy of Sciences The method developed after atter a quarter century of ot research which has brought international fame to Dr Seashore as an authority on tho the psychology and anthropology of oX music makes use not only of the tho moving picture camera but of ot the devices of physics and mathematics Having established that all music music mu mu- sic vocal or instrumental is conVeyed conveyed con con- on varying sound waves ho he explained it has become possible to record and analyze music as a science and a beginning has even been made mado toward the tho development of ot a specific terminology to designate desIgnate nate its different elements clements METHODS FOR STUDY Dr Seashores Seashore's primary Interest in it I developing and adapting modern L devices to this end has been to provIde provide pro pro- vide exact methods for study of ot the anthropology of ot music its origin I and evolution in the life of the race through the collection and analysis of primitive music by scientific ex cx Nevertheless he disclosed that the thc Instruments used in connection I with psychological measures o of r musical talent which he lie has worked I out have already proved to be 01 of ot r great value in determining the musical musical musical mu mu- ability of untrained as well a as C trained Individuals Recommending that anthropological cal expeditions to primitive peoples in the future be bo equipped with the Instruments ho lie presented an illustration illus mus- of ot a recent successful field trial among negroes of ot the south It was taken talen from a camera collection collection collection tion of two thirty-two negro songs made by his associate Dr Milton Met Met- fessel with the cooperation of ot th the University of North Carolina am and recorded the singing of ot I I Lay M My Burden Down by a farm hand hanc working in a corn field The volume volume vol vol- ume utne presenting the actual notes i ithe In the manner of a a. line Une graph is bein being published with the conventional notes inserted to show the devia devIa- I 1 PHOTOGRAPH SOUND At present it is practicable to photograph only the sound waves wave and the singer or musician but bu work is progressing rapidly to de develop de- de elop the instruments further s so that this moving picture made with wit one camera not only may be proJected projected pro pro- on a screen but th the music musi itself may be as clearly reproduced reproduce as if it had been recorded on a phonograph gaining an effect similar sim- sim liar ilar to that of ot the In photographing the song or in instrumental instrumental in- in Instrumental music Dr Seashore explained explaIned ex ex- a beam of light is re ro- ro fleeted into the camera from a a. sensitive sen sen- sensitive membrane which vibrates a as the sound waves strike it The Th light i loving back and forth across the moving film Urn produces a a. zigzag record which shows every variation within one thousandth of ot a a. second By analyzing these variations an and plotting them on a a. chart representIng represent represent- ing the musical scales it is possible to present a a. graphic and read readily 11 understand understandable ble record of what ac nc- ac- ac nci i happened I |