👉 A microphonograph is a type of recording device that converts sound waves into electrical signals. It is often used in music and audio recording studios to record small pieces of musical material such as notes, phrases, or lyrics. The microphonographs are typically made from metal or plastic and have a small speaker built-in for playback. They were first introduced in the 1920s and have since become popular among musicians and audio enthusiasts for their ability to capture tiny sounds with minimal physical effort.
