Little Weather Watcher | A Cloud's Journey

Here's the narration MP3.

What it is

• English children's cloud-science narration: how water vapor condenses into droplets and how rain falls.
• Voice: friendly, clear female read (TTS-1, voice "nova"), gentle pace at 0.95×.
• Speech only — no background music, no sound effects.
• Measured length: 39.84 s (mp3, 24 kHz mono, 128 kbps), inside your 30–40 s window.

Script read "Hello, little scientists! Have you ever wondered where rain comes from? Let's find out together. The sun warms up water in oceans, lakes, and puddles. That water turns into tiny, invisible bits called water vapor and floats up into the sky. High above us, the air is much colder, so the vapor cools down and sticks together into tiny droplets. Millions of these droplets gather and form a fluffy cloud. Inside the cloud, the droplets bump into each other and grow bigger and heavier. When they become too heavy to float, they fall down, down, down as raindrops. Then the sun warms the water again, and the whole cycle starts all over!"

Checks I ran

• Length and format measured with ffprobe on the actual file.
• Pause structure: 8 clear speech pauses with true silence between them, and a flat loudness range (3.2 LU, -28.2 LUFS integrated, peak -8.5 dBFS, no clipping) — consistent with speech alone and no music bed.
• Not verified: I could not run the audio transcription check (the media-analysis service is down right now), so exact word-by-word delivery and pronunciation were not independently confirmed — I only verified length, format and that the track is speech-only. Tell me if you want me to re-run that check later or adjust the pacing.