South Asia · Devanagari
Hindi Speech Translation Dataset
Hindi speech translation sourced to your specification — no inventory, no fixed listing. This page covers what is specifically hard about this pairing, and which fields your specification needs to pin down.
Why speech translation in Hindi is its own problem
The core risk in Hindi speech-translation data is an incomplete set of the three components — audio, Hindi source transcript, and target translation all have to be present, and many suppliers deliver only two. Separately, whether English words in Hindi speech are translated into the target language or kept as-is directly shapes the style of the translation.
The field to pin down first: Whether the translation is human or machine translation with human post-editing is an order-of-magnitude difference in cost and quality, and it has to be settled first.
At a glance
| Language | Hindi |
|---|---|
| Primary region | South Asia |
| Writing system | Devanagari |
| Category | Speech Translation |
| Specification field to settle first | Whether the translation is human or machine translation with human post-editing is an order-of-magnitude difference in cost and quality, and it has to be settled first. |
| Delivery | Sourced to order, pilot batch before the full run |
What speech translation data is
Parallel data pairing source-language audio with target-language translation, used for speech-to-text and speech-to-speech translation models.
What buyers get wrong about it
Speech translation data needs all three components: audio, source-language transcription, and target-language translation. Miss one and it cannot be trained on — many suppliers deliver only two.
The specification field that decides the quote
Whether the translation is human or machine translation with human post-editing — cost and quality differ by an order of magnitude.
The language side: what Hindi demands
Hindi and Urdu are mutually intelligible at the spoken level, but one is written in Devanagari and the other in Perso-Arabic script. Which script a recording is transcribed into directly determines whether the data can feed a model targeting Urdu.
What we can put in this delivery
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Read and conversational speech
Scripted recording for TTS, and unscripted conversation for recognition. Specified separately because they need different speaker pools.
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Transcription to your convention
Orthographic or phonetic, with the guideline written before production and shared with you for review.
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Speaker metadata
Age band, gender, region and dialect background per file, so you can slice the dataset rather than take it whole.
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Consent documentation
Signed speaker consent covering the intended use, plus collection methodology and the annotation guideline.
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Pilot batch
A small batch first, which you can reject. Misalignments surface after a few hours rather than at delivery.
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Delivery in your format
Audio format, sampling rate, segmentation length and metadata schema set to your pipeline's requirements.
What arrives in a delivery
| Component | What it is |
|---|---|
| Audio files | Format, sampling rate and segmentation length set to your pipeline. Named to a convention you specify. |
| Transcription | Orthographic or phonetic, produced under a guideline you review before production starts. |
| Speaker metadata | Age band, gender, region and dialect background per file, plus a speaker identifier so the dataset can be sliced. |
| Recording conditions | Environment, device and, where relevant, measured signal-to-noise ratio per file. |
| Annotation guideline | The document the annotators worked from, so you can reproduce the conventions on your own data. |
| Consent records | Signed speaker consent covering your intended use, with the transfer mechanism addressed where required. |
| Collection methodology | How speakers were recruited, screened and scheduled — the part that tells you how biased the pool is. |
| Quality report | Pilot outcome, re-work log, and the annotator agreement figures where the task supports measuring them. |
Questions we get about Hindi Speech Translation
How many distinct speakers can you provide for Hindi Speech Translation?
It depends on the specification and the timeline, and we will give a real number rather than a target. For this pairing, speaker recruitment is usually the step that sets the schedule. Whether the translation is human or machine translation with human post-editing is an order-of-magnitude difference in cost and quality, and it has to be settled first.
Can you annotate to our own guideline instead of the default?
Yes, and for this pairing we would recommend it. The core risk in Hindi speech-translation data is an incomplete set of the three components — audio, Hindi source transcript, and target translation all have to be present, and many suppliers deliver only two. That is exactly the kind of decision a default guideline leaves open, and it is where annotators diverge. Send us your guideline, or we will draft one and you can review it before production starts.
Do you offer a sample before we commit to a full run?
Yes. Select a free sample in the request form and describe what you need. A pilot batch is the cheapest way to establish whether the quality bar is reachable for Hindi Speech Translation before committing to the full volume.
Is the data licensed or owned outright?
Licensing terms are set per project, so tell us how the model will be used and whether it will be distributed. Consent documentation travels with the data either way, and we do not handle medical or clinical data or recorded telephone calls.
Other datasets in Hindi
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Hindi Singing Voice
Vocal recordings with melody, in both a cappella and accompanied form, used for singing voice synthesis, music information retrieval, and lyric alignment.
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Hindi Speech Commands
Targeted recordings of short command words or phrases, usually with many speakers reading each entry several times over, used for wake words and on-device command recognition.
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Hindi Read Speech
Recordings of speakers reading specified text, with clear pronunciation and known text, the base material for TTS and ASR.
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Hindi Podcast Speech
Long-form podcast and interview audio, either solo monologue or two-person conversation, used for long-form speech recognition and speaker modeling.
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Hindi Multilingual Speech
Speech data covering multiple languages within one project, used for multilingual ASR, cross-lingual transfer, and language identification.
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Hindi Noisy Speech
Speech collected under background noise — street, in-car, restaurant, office and other real environments — used for noise-robust models and speech enhancement.
Speech Translation in other languages
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Arabic (Gulf) Speech Translation
Middle East & North Africa
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Kannada Speech Translation
South Asia
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Punjabi Speech Translation
South Asia
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Burmese Speech Translation
Southeast Asia
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Amharic Speech Translation
Sub-Saharan Africa
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Ukrainian Speech Translation
Europe
Request Hindi Speech Translation
Tell us the language, the hours, and what the data needs to look like. You will get a real number and a real timeline — not a range. If we cannot source it well, we will tell you that instead.
- Pilot batch before the full run, so problems surface early.
- Consent documentation delivered with the data.
- No medical or clinical data. No recorded telephone calls.