Input & Scene Planning
Choosing an Input
Deep dive into Write Prompt, Upload Audio, In-Browser Voice Recording, and Upload Video inputs in Explayner.
4 min read•Last updated: September 2026
Input Mode Breakdown
Explayner adapts its scene planning based on your starting asset:
| Input Mode | Supported File Types / Limits | Best For |
|---|---|---|
| Write Prompt | Up to 10,000 characters | Concepts, educational explainers, tutorials, quick ideas |
| Upload Audio | MP3, WAV, M4A, OGG (Max 25 MB) | Podcasts, voice notes, studio narration |
| Record Audio | Up to 10 minutes via browser mic | Quick spontaneous walk-throughs and lectures |
| Upload Video | MP4, MOV, WebM | Talking-head reactions, tutorials with video B-roll |
In-Browser Voice Recording
Don't have an audio file? Click Record audio instead. Explayner requests microphone access, allows you to record up to 10 minutes, preview the audio playback, and click Use this recording.
You can re-record as many times as needed before submitting to generation.
Speech Translation to English
Explayner transcribes spoken audio and translates it to English for scene planning while strictly preserving original audio timestamps and cadence.