AI Narration
AI Narration generates professional voice-overs for your course content using natural-sounding AI voices. Add narration to individual blocks to create an audio learning experience.
How narration works
Section titled “How narration works”Narration is generated per block. Slate creates a narration script from the block’s content, generates audio using an AI voice, and attaches the audio to that block. When learners view the course, audio plays as they reach each narrated block.
- Select a block in the lesson editor
- Open the narration panel
- Choose a voice
- Review and optionally edit the narration script
- Generate the audio
You can preview the generated audio before publishing and regenerate it if needed.
Available voices
Section titled “Available voices”Slate offers 14 Neural2 voices across 6 languages:
| Language | Voices available |
|---|---|
| English (US) | Multiple male and female voices |
| English (UK) | Male and female voices |
| English (AU) | Male and female voices |
| French | Male and female voices |
| German | Male and female voices |
| Spanish | Male and female voices |
Each voice has a distinct tone and character. Preview voices before selecting one to find the best fit for your course.
Custom audio
Section titled “Custom audio”If you prefer to use your own recordings, you can upload custom audio files to any block instead of generating narration. This is useful when you want a specific speaker, branded voice, or human-recorded narration for certain sections.
Multi-language narration
Section titled “Multi-language narration”When your course has translations, you can generate narration in each translated language. Each language version uses voices appropriate to that language, so learners hear narration in their selected language.
Premium voices
Section titled “Premium voices”Requires a Pro plan.
In addition to the 14 standard voices, Pro subscribers have access to premium ElevenLabs voices with more natural, expressive speech. Premium voices are ideal for polished, public-facing courses.
Credits
Section titled “Credits”- Standard voices cost 50 AI credits per block
- Premium voices cost 100 AI credits per block
Credits are deducted when the audio is generated.
Narration in exports
Section titled “Narration in exports”Generated narration audio is included in all export formats. SCORM, xAPI, cmi5, and HTML exports all contain the audio files, so narration works in your LMS without any additional setup.