Sarvam generates natural voice narration for online courses in Hindi, Tamil, Telugu, Bengali, and seven more Indian languages. The pace is adjustable for different difficulty levels, the audio is SCORM-ready for any LMS, and the narration updates in seconds whenever your syllabus changes.
Conversational ・ Friendly
News ・ Authoritative
Conversational ・ Consistent
Entertainment ・ Dynamic
Want to use this API?
Only about ten percent of Indians are fluent in English, but the vast majority of online courses are still English-only. A student in Patna preparing for UPSC can follow Hindi lectures but struggles with English reading. A nursing student in Coimbatore needs Tamil instruction. Voice narration in the learner's language changes completion rates dramatically.
An EdTech platform with 500 course modules wants to add Hindi and Tamil narration. That alone is 1,000 recording sessions. Add Telugu, Bengali, and Marathi, and it becomes 2,500 sessions. At Rs 500 to 2,000 per session, the cost runs into crores. Sarvam narrates all 500 modules across 11 Indian languages for a fraction of that.
Indian curricula change every year. Exam patterns shift, NCERT revises textbooks, and state boards roll out syllabus updates on their own schedules. Re-recording narration for every change, in every language, is a bottleneck that delays content rollout by weeks. With Sarvam, you update the text and regenerate the narration in seconds.
Prepare your course script
Write or translate your course content into the target Indian language. Break it into sections that match your slide structure or video timeline. Sarvam works with any authoring tool.
Choose voice and learning pace
Pick a clear, professional voice. Set the pace based on the type of content. Use 0.85x for complex concepts that students need to absorb, 1.0x for general lessons, and 1.2x for revision and recap modules.
Generate the narration
Send each section to the Sarvam TTS API. You get natural-sounding audio back in seconds. Batch processing handles entire courses at once. A 500-module course library in one language takes hours, not months.
Embed in your LMS
Add the audio to SCORM packages, video lessons, or interactive modules. Publish to DIKSHA, Moodle, Google Classroom, or any other LMS platform.
from sarvamai import SarvamAI client = SarvamAI(api_subscription_key="YOUR_KEY") # Hindi lesson narration audio = client.text_to_speech.convert( text="Photosynthesis ek aisi prakriya hai jismein paudhe sooraj ki roshni ka upyog karke carbon dioxide aur paani se apna bhojan banaate hain.", target_language_code="hi-IN", model="bulbul:v3", speaker="arvind", pitch=0, pace=0.9, enable_preprocessing=True ) with open("lesson_3_photosynthesis.wav", "wb") as f: f.write(audio.audios[0])
Hindi, Tamil, Telugu, Bengali, Malayalam, Marathi, Gujarati, Kannada, Punjabi, Odia, Assamese. NEP 2020 compliant.
Students control playback speed. Dense concepts at 0.7x, revision at 1.5x. Better retention than fixed-pace recordings.
Curriculum change? Update the text, regenerate the audio. No studio, no reshoots, no version management chaos.
Generate narration on the free tool. No sign-up. Upgrade to API when you're producing at scale.
Starting at ₹30 per 10K characters. View pricing
Higher is better
ElevenLabs Flash V2.5
ElevenLabs V3 Alpha
Cartesia Sonic-3
India's EdTech platforms serve millions of learners preparing for UPSC, JEE, NEET, and state-level exams. Students increasingly want content in Hindi and other regional Indian languages. A platform with 10,000 video lessons would need 110,000 audio tracks to cover 11 languages. With Sarvam's TTS API, that becomes a batch job, not a year-long production project.
The National Education Policy 2020 mandates mother tongue instruction through Grade 5. This affects 260 million school students. State education boards need textbook narration, lesson audio, and assessment content in every state's official language. The content volume is enormous, and traditional recording cannot keep pace.
DIKSHA serves more than 100 million users across school education. SWAYAM and NPTEL offer thousands of higher education courses. These platforms need content in every state language, updated as curricula evolve. Dynamic TTS makes multi-language education content practical at this scale.
Independent creators on Udemy, Skillshare, or their own platforms are building Hindi exam prep, Tamil coding tutorials, and Telugu business courses. The free tool lets them narrate full courses without any upfront cost. When they scale, the API is ready.
Educational course content is consumed differently by different learners. A Class 6 student learning fractions for the first time needs time to absorb each concept. A Class 12 student revising the same topic before exams wants to move quickly. Sarvam's pace parameter lets course designers set different speeds for different modules, or different sections within the same module.
A voice artist recording is fixed once it is done, and changing the pace means recording the track again. With Sarvam, the same script can generate multiple versions at different speeds, so a single course can serve both first-time learners and students revising before exams without extra production work.
Combine Sarvam's language APIs for end-to-end multi-language course production.
Natural, expressive voices for educational content across every major Indian language.
Add voice to your courses in minutes
Add voice to your courses in minutes
