Who invented the Tin foil phonograph?

In July 1877, while developing his telephone transmitter, Thomas Edison conceived the idea of recording and playing back telephone messages. After experimenting with a telephone "diaphragm having an embossing point & held against paraffin paper moving rapidly," he found that the sound "vibrations are indented nicely" and concluded "there's no doubt that I shall be able to store up & reproduce automatically at any future time the human voice perfectly." Edison periodically returned to this idea, and by the end of November, he had developed a basic design. The first phonograph consisted of grooved cylinder mounted on a long shaft with a screw pitch of ten threads per inch and turned by a hand crank. Instead of paraffined paper, Edison used a piece of tin foil wrapped around the cylinder as a recording surface. The first phonograph had separate recording and playback mechanisms, but later designs combined them into a single unit.