Pricing
TTS Training Data: cost and pricing in India
Indicative rate bands for tts training data, the five specification decisions that move the number most, and how a fixed quote is put together from a written spec.
- Pricing model
- Per delivered unit, fixed against spec
- Minimum
- ~50 hours or equivalent per language
- Turnaround
- 4-8 weeks for a 20-40 hour single-speaker voice build including casting.
- Quote time
- One working day
What drives the price of tts datasets
Single-speaker and multi-speaker text-to-speech corpora with phonetically balanced scripts, consistent prosody, and studio-grade capture suitable for neural TTS.
- Language tier: widely spoken languages have deeper recruitment pools and cost less per unit than low-resource ones
- Demographic narrowness: a 50/50 gender split across three age bands is routine; a narrow cohort multiplies recruitment effort
- Sample rate — 48 kHz, 24-bit. Moving this off the standard changes the unit cost directly.
- Speaker consistency — Same booth, mic, distance and time-of-day banding across sessions. Moving this off the standard changes the unit cost directly.
- Script — Phonetically balanced, diphone-covering, domain-extended. Moving this off the standard changes the unit cost directly.
- Prosody — Neutral base set plus optional expressive styles. Moving this off the standard changes the unit cost directly.
- QA threshold and rework policy: a higher accept bar means more re-collection, which is priced in rather than absorbed later
Where the cost sits in tts datasets
Auditioned voice talent, shortlisted by you before the full build starts.
Turnaround: 4-8 weeks for a 20-40 hour single-speaker voice build including casting.
Indicative rate bands
| Scope | Unit | Indicative band |
|---|---|---|
| Widely spoken language, standard spec | per delivered hour | ₹3,200 – ₹6,500 |
| Regional language, standard spec | per delivered hour | ₹4,200 – ₹8,200 |
| Low-resource language or narrow cohort | per delivered hour | ₹5,500 – ₹11,000 |
| Verbatim transcription add-on | per audio hour | ₹900 – ₹2,400 |
| Pilot batch (10-20 hours) | fixed | Quoted separately, credited against the full run |
These are bands, not a price list. Two projects with the same hour count can differ by 3x on cohort design alone, which is why every number here is replaced by a fixed figure once we see your specification.
What the price includes
- Studio WAV per utterance
- Verified transcripts and pronunciation notes
- Phoneme coverage report
- Voice talent licence and consent documentation
How the quote is built
- Script generation with phoneme and diphone coverage analysis
- Voice casting with client shortlisting from audition samples
- Multi-session recording with drift monitoring between sessions
- Alignment verification and mispronunciation review by a linguist
- Delivery with a coverage report
Where budgets get wasted
The most expensive mistake in a data purchase is buying volume before the specification is settled. Re-collecting 200 hours because the noise profile did not match deployment costs more than the entire QA layer would have.
Session drift is the main TTS killer. Every session is compared acoustically against the reference session and re-recorded if it drifts.
Best suited for
- Neural TTS
- Voice cloning
- Expressive speech synthesis
Frequently asked
How much does tts datasets cost per hour in India?
Most programmes land between ₹3,200 and ₹11,000 per delivered unit depending on language tier, cohort narrowness, recording condition and annotation depth. A written specification converts that band into a single fixed number.
Is there a minimum order?
Around 50 hours or equivalent per language for a production run. Pilots of 10-20 hours are accepted when they lead into a larger build, since most setup cost sits in specification and recruitment.
Do you charge for rejected audio?
No. You pay for delivered units that pass the agreed QA threshold. Rejected material is re-collected at our cost.
Can the price be fixed rather than estimated?
Yes. Once the specification is signed the price is fixed against it. Changes to quotas, conditions or annotation depth are re-quoted before work continues.
Related pages
Get a fixed price for tts datasets
Send the volume, languages and quality bar you have in mind and you get a scoped price within a working day.