. The Bell System technical journal . MODULATORS I RADIATOR I SPEECH i MECHANICAL. Fig. 8—Schematic circuit of the voder. original speech message in terms of a modified set of parameters. Thisanalyzer suppresses the original carrier of the talker and so resemblesthe demodulator in radio reception. The analyzer acts as an electricalear to tell the artificial vocal system of the vocoder what to say, thewhole vocoder acting as a synthetic mimicker. The basic similarity of the electrical and human speech synthesizersis seen in these figures. In all three cases the message is originatedby the brain
. The Bell System technical journal . MODULATORS I RADIATOR I SPEECH i MECHANICAL. Fig. 8—Schematic circuit of the voder. original speech message in terms of a modified set of parameters. Thisanalyzer suppresses the original carrier of the talker and so resemblesthe demodulator in radio reception. The analyzer acts as an electricalear to tell the artificial vocal system of the vocoder what to say, thewhole vocoder acting as a synthetic mimicker. The basic similarity of the electrical and human speech synthesizersis seen in these figures. In all three cases the message is originatedby the brain of the sender of the speech information. There is in eachcase a transmission of control impulses by the talkers nervous systemto the appropriate muscles. The muscles produce displacements ofbody parts formulating the speech information as a set of mechanicalwaves. These waves appear in the vocal tract in the case of normalspeech; in the fingers, wrist and foot in the case of the voder, but inthe case of the vocoder use is made of electrical currents derived fromand equivalen
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
