How to Make Text-to-Speech (TTS) Sound More Natural

Text-to-speech (TTS) is a technology that converts digital text into audio, and thanks to recent rapid advances in AI technology, it has moved beyond the mechanical voices of the past to achieve human-like voices.

Existing robotic TTS used simple synthesis techniques, resulting in characteristics such as monotone pitch, unnatural reading speed, and lack of emotion. In particular, the absence of natural pauses or intonation gave users a sense of unfamiliarity.

On the other hand, the latest AI voice generation tools provide a listening experience similar to that of a real person through the following key elements:

• Intonation: Generates dynamic and expressive speech by using natural pitch variation to emphasize specific words or phrases.
• Natural pauses: Reduces the mechanical feel by reflecting biological elements such as breathing or brief pauses between sentences.