Emile German made-up one thing that contributed to Bell's successful invention of the voice telegraph or homophone. it had been the mike. once Bell initial incontestable his phone-phone at associate exposition several inventors began to refine and excellent the thought. The carbon mike he developed varied the contact pressure between 2 terminals as a sound ironed against the mike. This was far better than the crude microphones utilized in the first telephones and German sold-out the invention to Bell public-service corporation for $50,000.
Berliner supported Deutsche Gramophone and Gramophone Co. His trademark image became a painting of his dog taking note of "his master's voice" that is currently the emblem of the music retail company HMV.