South Asia · India
Hindi conversational speech dataset
2,000 hours of spontaneous Hindi conversations recorded in India across 200 vetted native speakers. Dual-channel audio with time-aligned transcripts, speaker metadata (age, gender, region, device), and full chain-of-consent documentation. Licensed for commercial ASR, TTS, and voice AI training.
Dataset specifications
| Language | Hindi |
|---|---|
| Recorded in | India |
| Speech type | Spontaneous two-person conversations |
| Volume | 2,000 hours |
| Speakers | 200 vetted native speakers |
| Audio | Dual-channel (one channel per speaker) |
| Transcripts | Time-aligned, human-verified |
| Metadata | Age, gender, region, recording device |
| License | Commercial (training & evaluation) |
| Price | $65 per hour of audio |
Need more hours, another dialect or your own recording setup? We collect speech data to spec.
Built for
Training and evaluating speech models that must handle real Hindi speech:
- Automatic speech recognition (ASR / STT)
- Text-to-speech & voice synthesis prosody
- Voice agents and IVR for India
- Speaker diarization & turn-taking models
- Speech LLM / audio-understanding fine-tuning
Why conversational data?
Models trained on read speech consistently underperform on spontaneous audio. Disfluencies, overlap, and natural speech rates aren’t in the training distribution. This dataset closes that gap for Hindi. Read more in our guide to conversational vs. scripted speech data.
Free samples
Audit the Hindi data yourself
Share your company email and we’ll email you representative audio, matching transcripts, and the metadata schema. Check audio quality, transcript accuracy, and speaker diversity before you spend a dollar.
Public alternatives
Public Hindi speech data vs. this dataset
| Source | What it is | License | Commercial training |
|---|---|---|---|
| IndicVoices (opens in a new tab)AI4Bharat | Read (8%), extempore (76%) and conversational (15%) speech from districts across India; includes Hindi; gated download. | CC BY 4.0 | Allowed |
| Vaani (opens in a new tab)IISc Bangalore and ARTPARK, funded by Google | Spontaneous speech of people describing images, in many Indian languages including Hindi; only a small share transcribed. | CC BY 4.0 | Allowed |
| Kathbath (opens in a new tab)AI4Bharat | IndicCorp sentences read aloud by contributors in Indian districts, collected on the Karya platform; includes Hindi. | CC0 (dataset card text); Hugging Face metadata lists CC BY 4.0; AI4Bharat notes it does not own the IndicCorp source text | Allowed |
| Shrutilipi (opens in a new tab)AI4Bharat | Audio and text pairs mined from All India Radio news bulletins, in 12 Indian languages including Hindi. | CC BY 4.0 | Allowed |
These Hindi sets are read, broadcast news, image-prompted or mostly extempore; ours is entirely spontaneous two-person conversation with one channel per speaker and per-speaker commercial consent.
Licenses as published by each source, checked October 2026. Check the current terms before use.
FAQ
Frequently asked questions
What does the Hindi speech dataset include?
2,000 hours of spontaneous two-person conversations from 200 vetted native speakers recorded in India, delivered as dual-channel audio with time-aligned transcripts, speaker metadata (age, gender, region, device), and consent documentation.
What makes Hindi hard for speech recognition?
Everyday Hindi is full of English, with speakers switching mid-sentence (Hinglish), so a model has to handle two languages at once. Hindi also has aspirated and retroflex consonants that English-trained models confuse, and accents vary widely across north India.
Is there free Hindi speech data?
Yes, IndicVoices, Vaani, Kathbath and Shrutilipi are free for commercial use. This dataset is spontaneous two-person conversation recorded in India, with speaker metadata, one channel per speaker and signed commercial-use consent.
Can I use this Hindi dataset commercially?
Yes. The dataset is licensed for commercial use, including training ASR, TTS, and other voice-AI models. Every speaker has signed explicit commercial-use consent, and we provide the full consent chain for your legal review.
How much does the Hindi speech dataset cost?
Pricing is $65 per hour of audio. Volume discounts are available for full-dataset and multi-language purchases. Contact us for a quote.
Can I evaluate samples before buying?
Yes. Request samples with your company email, and we'll email you representative audio files and matching transcripts so your team can audit quality before committing.
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