If you’re an online course creator, you already know the problem: your best students might not speak English. Translating a course used to mean hiring a voice actor, waiting weeks, and paying hundreds of dollars per language. I wanted to know if ElevenLabs could actually replace that process—not in theory, but with a real, reproducible test. So I took a 60-second clip from an actual course lesson and dubbed it into Spanish using ElevenLabs. Here’s exactly what happened, what it cost, and what settings I used.
Why Traditional Dubbing Doesn't Scale
Hiring a freelance voice actor for a single language typically costs $50-$150 per finished minute, plus a 3-7 day turnaround. For a 10-minute course translated into three languages, that’s easily $1,500-$4,500 and weeks of back-and-forth. ElevenLabs’ pricing starts at a fraction of that, with results available in minutes instead of days.
The Test: A Real Course Script
Here’s the exact 60-second script I used, taken from a finance course lesson on compound interest: “Welcome to Lesson One: How Compound Interest Works…” (full script below). I picked this clip because it has numbers, technical vocabulary, and a natural teaching cadence—a realistic stress test, not a cherry-picked sentence.
Step 1: Generating the English Voiceover
I pasted the script into ElevenLabs’ Text to Speech tool, selected a narration-style voice, and set Stability to 50% and Similarity to 80%. Generation took under 20 seconds.
Welcome to Lesson One: How Compound Interest Works. Imagine you invest one thousand dollars today, and it grows at seven percent per year. After the first year, you'd have one thousand and seventy dollars. But here's the interesting part: next year, you don't just earn interest on your original one thousand dollars — you earn interest on one thousand and seventy dollars. That's the power of compounding. Over ten years, that same one thousand dollars can nearly double, without you adding a single extra cent. This is why financial advisors always say: start investing as early as possible. Time, not just money, is your biggest advantage. In the next lesson, we'll calculate exactly how much your own savings could grow using this same principle.
English Version:
Step 2: Generating the Spanish Version
Using the Multilingual v2 model, I translated the script and generated a Spanish voiceover with the same voice and settings. The result kept the same pacing and tone as the English version—important for course consistency across languages.
Bienvenido a la Lección Uno: Cómo Funciona el Interés Compuesto. Imagina que inviertes mil dólares hoy, y crecen a un siete por ciento anual. Después del primer año, tendrías mil setenta dólares. Pero aquí está la parte interesante: al año siguiente, no solo ganas intereses sobre tus mil dólares originales, sino sobre los mil setenta dólares. Ese es el poder de la capitalización. En diez años, esos mismos mil dólares casi pueden duplicarse, sin que agregues ni un centavo extra. Por eso los asesores financieros siempre dicen: comienza a invertir lo antes posible. El tiempo, no solo el dinero, es tu mayor ventaja. En la siguiente lección, calcularemos exactamente cuánto podrían crecer tus propios ahorros usando este mismo principio.
Listen to Both Versions
Insert the English and Spanish audio players here. Both samples should be compared for pacing, tone, and pronunciation.
Voice Settings That Actually Matter
- Stability (45-55%): Higher stability sounds robotic; lower sounds emotionally inconsistent between sentences.
- Similarity (75-85%): Keeps the voice recognizable across long courses.
- Style Exaggeration (10-20%): Course narration should stay calm and clear, not dramatic.
How Much Does This Actually Cost?
| Course length | Estimated credits | Recommended plan |
|---|---|---|
| 5 minutes | 3970 | Free |
| 10 minutes | 7,930 | Free |
| 30 minutes | 23,800 | Starter |
What Went Wrong (Because Something Always Does)
On my first attempt, ElevenLabs mispronounced "compounding" with unnatural stress. Rewriting it phonetically in the script fixed the issue on the second generation. If you’re dubbing technical or brand-specific terms, expect at least one round of correction like this.
Can You Use This Commercially?
Commercial use for course sales is covered under ElevenLabs’ paid plans (Starter and above)—check the current terms before publishing paid content, since usage rights can vary by plan.
Free Plan or Paid Plan?
- Testing one short clip occasionally → Free plan is enough(New users get 10,000 points upon registration.).
- Dubbing a full course into one language → Starter or Creator.
- Multiple languages, frequent script revisions → Creator or Pro, for the higher monthly character limit and priority generation.
Final Verdict
ElevenLabs isn’t magic, but for course creators who need multiple languages and want to revise scripts often, it replaces a $1,500+ manual dubbing workflow with something you can test yourself in an afternoon for a fraction of the cost.
