| Show scientific I 1 photo photographing 0 Z the wee voice ts Is ons ono of the latest discoveries I 1 nothing like a phonograph and yet the instrument follows and outlines the tha unman human voice in every wave and variation of sound bound remarkable experiment have been carried on at columbia columbia college by profs pros halleck alleck II and ath regard to the tones of the human voice th the e of the professors is primarily to discover dit cover a standard for the human voice by which all voices can ba be judged they purpose to construct a machine which will produce the notes in three octaves octave i aust like a human voice the only difference will be that the notes from the machine will be pure note not sand estand infinitely more beautiful than any human being can produce by means of these perfect or nearly dearly perfect tones a standard can be fixed which will represent the human voice in its highest perfection incidentally the way fur a singer to get the best beet effect with the least exertion will b be found besides much other valuable ditta data in ili order to do this photographs have been taken of the vocal cords in a mans throat while he is sin singing 0 this was done by means of a glass the results gave gare the position of the cords for each different note musical notes are produced by the vibration of the vocal cords and their pitch is controlled by the length tension and thickness of the cords the experiments already show that the the carti cartilage laae which controls control the thickness of the cords plays an important part in voice production most singers depend entirely upon the alteration of the length and extension of the cords for singing different notes the valuable aid of the cartilage is not cot called ilea in and consequently much greater exertion is required Undoubted undoubtedly lythe the most interesting experiment however is the photographing a of the voice itself the dif difference Terence between the tones of a good and bad voice when p photographed are shown in the cuts th the lines linea represent the vibration of a flame when a note is soun sounded ded close against it A new complicated piece of mechanism known as the monona etric flame machine is used to obtain these results every note sounded founded by the human voice contains a number of overtones in addition to the tones itself when the note A is is sung there are sounded founded in addition to the fundamental or actual A itself the As aa of two or three 0 octaves higher as well as of several intermediate tones we ony only hear the note as one found but the flame detects eight or nine others and divides the notes up as shown in the cuts taeup the upper tones give brilliancy brilli aLcy atcy and the fundamental tones give volume and strength now if some of our finest singers can be induced to have their voices photographed in this way the arrangement ran gement and number of tones in in a single note which will be ag a perfect as possible will be discovered discovered there is no difficulty in producing these different tones separately by means of tuning forks if they are all sounded at the same time and in the proper degree of loudness the exact counterpart of a human voice voice would be produced by mechanical means this has never yet been done for the metallic faraway tones of the phonograph cannot be corn compared pared to areal a real human voice prof koenig of paris has long been trying to do this but without success the great trouble is that the tuning forks cannot all be sounded at once and odthe of the correct loudness lou loud doess ness the note that we hear bear is of course the loudest and is represented in the photograph by the lowest and thickest line all the overtones gradually taper offin strength until even the sensitive resonators tors in the etric machine cannot detect thern them the man whose voice is is to be je photographed sings a tingle note steadily into a large sounding 9 board from the erundino bounding moun ding board the note is conveyed to a a row of resonators resonator sight 1 in number which are of arious pitches corresponding to the different overtones of the voice in front of each resonator is a little jet of flakne when the voice tones strike on the resonators the air inside thern is vibrated and nd agitates the little frame which is is in front of each reso nozzle the flames are reflected into a many sided aided reflector which is rapidly fly revolved while the note is being ging sounded by the men man who is sitting silting g for his bis voice photograph tu the leri leas of it a camera is placed close against the reflector and a rapid plate exposed for a second or more when developed de eloped the result shows the i ib vibrations rations of the mans voice and consequently its quality As a rule the better the voice the more overtones there are in it and to record a voice like jean de kesek d s would require a dozen or more flames in order to rep reproduce reduce the human voice prof halleck alleck II will use uee organ pipes they will be ba very small and in boxes so that no more sound can get gel out than is needed to produce the complex tone if the experiments are sue and the projected machine can be constructed it will even be possible PO isible for a man to sit down in his own drawing roon room and play on a piano the notes of which will not give n forth the musical sounds founds of wires struck by felt arld and wood hammers but the glorious glori melody of a human voice there will be no need to go to the ol 01 0 era to hear bear a famous prima dona because the instrument will eang s mg much better than any human being cm can the best points can be taken from a number of the finest singers 0 and the results formed into a scale of notes which will be almost perfect opera will then mean aeta a eta eflin of voiceless and tann haunera hau seri who go through the motions while the sin singing ring is done by machine behind the scenes |
