Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Charles A. Hoxie (1867–1941) creator of the pallophotophone at General Electric, and is credited as one of the inventors of sound film, and as father of the "talking picture".
During his career (1912–32) at General Electric, he devised a sound-on-film process to put recordings on film.