Text to Speech · E-Learning
Free E-Learning Voice Generator
Add professional AI narration to your online courses with 322+ voices in 75+ languages. Perfect for Udemy, Coursera, Teachable, Kajabi, and LMS platforms. Free for commercial use, no signup required.
Why TTS Now for online courses
- Consistent voice quality across all lessons
- Multi-language courses — generate the same content in 75+ languages
- Adjustable speed — slower for technical, faster for reviews
- Free for commercial use — monetize on Udemy, Coursera, etc.
- No voice fatigue — generate hours of audio without re-recording
- Easy updates — change a slide, regenerate just that audio
Best voices by course type
- Programming/Tech: Aria (clear, neutral) at 1.0×
- Mathematics: Davis (slow, careful) at 0.9×
- Language learning: Native speaker voice for target language
- Business/Marketing: Jenny (energetic) at 1.05×
- History/Humanities: Guy (warm, narrative) at 0.95×
- Kids education: Higher pitch (+10Hz), 0.95× speed
Step-by-step: course narration
- Write your lesson script (aim for 130 words per minute)
- Choose a voice — keep it consistent across the course
- Insert [pause:500ms] between concepts for emphasis
- Generate audio for each lesson separately
- Import into your video editor alongside slides/screen recording
- Add background music at -25dB (very subtle)
- Export MP4 and upload to your LMS
Frequently asked questions
Can I use AI voices on Udemy?
Yes. Udemy allows AI-narrated courses as long as you own the content. Disclose AI use in the course description.
What speed for educational content?
0.95× to 1.0× is ideal. Slower speeds help learners absorb information. Avoid 1.2×+ for technical topics.
Can I offer the course in multiple languages?
Yes — generate the same script in multiple languages. Reach global audiences with 75+ supported languages.
Related: TTS for Audiobooks · TTS for Accessibility · All TTS tools