Why did Thomas Edison build the phonograph if he was partially deaf?

Thomas Edison built the phonograph as part of his broader interest in sound and communication technologies, despite being partially deaf. His curiOSity about how sound could be recorded and reproduced drove him to innovate in this area. Additionally, Edison's hearing impairment did not prevent him from understanding the mechanics of sound; he was motivated by the potential social and commercial applications of the phonograph. Ultimately, he saw it as a way to enhance communication and entertainment, benefiting society as a whole.