A device for photographing human speech outside the room where the speaker is and without paying any attention to this process

Abstract

It is possible to do without explaining the importance and desirability of phonography of human speech in various manifestations of social life and in scientific research, especially psychological and psychopathological; such a clarification would be a repetition of what has already been expressed many times at different times and has behind it a general recognition. This circumstance eliminates the need to prove the appropriateness of any attempt in one way or another to make phonography even more accurate or convenient in the sense of not embarrassing the person whose speech is recorded on the phonograph.

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