Add audio to a bedtime story: voice, tempo, music

Choose the right voice

A warm, deep narration voice is more soothing than a bright one. For characters, two to three clearly distinguishable voices are enough – more can be confusing when listening half-asleep. In CartoonStory AI, you set a fixed voice per character that remains the same in every scene.

Pacing: slower than you'd think

Bedtime texts should be spoken noticeably slower than daytime stories. Shorter sentences with pauses in between automatically sound calmer than long, complex sentences. Plan fewer sentences per scene and allow a bit more time.

Use music and sounds sparingly

• Quiet background music, significantly softer than the speech.
• Sounds only if they contribute to calm: rain, wind, crickets.
• No effects at turning points – a fright disturbs falling asleep.

In the app, sound effects can be completely turned off, and the music automatically lowers when someone speaks.

Length by age

• 3–4 years: 2–3 minutes.
• 5–6 years: 3–5 minutes.
• 7–8 years: 5–10 minutes with a calm middle part.

The End

The last scene should be without tension: The character arrives, gets tucked in, the light goes out. A soft fading sound of 3–5 seconds helps transition into sleep.

Example to try

"A tired firefly looks for its way home and finds friends who light its path." This turns into a narrated short film in just a few minutes.