Microsoft has debuted an innovative AI tool named "Copilot Audio Expression" within its Copilot Labs platform. This tool transforms written text into natural and fluid voice narrations, offering users an immersive experience without the need for registration. It boasts two distinct modes: Emotive and Story, catering to a variety of voice tones and styles. The maximum audio length that can be generated is 90 seconds in MP3 format. Currently, the tool is available exclusively in English.