A voice recorder captures sound through a microphone, converting acoustic waves into electrical signals. These signals are then processed and stored as digital files on a memory chip or other storage medium. When you ask, "how does a voice recorder work," it's a matter of understanding that the device amplifies the sound through its circuitry, digitizes it using an analog-to-digital converter, and then saves it for playback. Modern voice recorders often include features like noise reduction and file compression to enhance recording quality and storage efficiency, making them versatile tools for capturing and preserving audio.