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Sample · Indian English

Free Indian English speech data sample

Thirty minutes of Indian English audio, recorded to your specification with transcripts and full metadata, at no cost. It exists so you can judge us on files rather than on claims.

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Audio waveforms being prepared as ASR training data — Free Indian English speech data sample
Sample size
~30 minutes
Cost
Free
Turnaround
5-8 working days
Formats
WAV 48 kHz + transcript + metadata
01

What the sample contains

  • Indian English audio from at least four speakers with a mixed gender and age spread
  • Coverage of North Indian (Hindi-substrate), Maharashtrian, South Indian (Tamil/Telugu/Kannada/Malayalam substrate) where your spec calls for dialect breadth
  • Verbatim transcripts in Latin, with a romanised parallel transcript on request
  • Per-file metadata: speaker ID, age band, gender, district, device, environment and SNR
  • A short QA report showing how the files were checked before they were sent
Each step exists to de-risk the next oneFree sample~30 min, proves qualityPaid pilot10-20 h, proves protocolProductionFixed price, stagedNo step is a prerequisite. Teams that already know the spec go straight to production.
02

How to specify it

DecisionOptionsDefault if you do not say
Speech typeScripted / spontaneous / conversational / telephonyScripted plus a spontaneous block
EnvironmentStudio / quiet room / field / call pathStudio and quiet room, split
Sample rate48 kHz, 16 kHz, 8 kHz48 kHz mastered, 16 kHz derived
DialectsNorth Indian (Hindi-substrate), Maharashtrian, South Indian (Tamil/Telugu/Kannada/Malayalam substrate)Standard variety plus one regional
AnnotationVerbatim / timestamps / speaker turns / event tagsVerbatim with timestamps

The sample is only useful if it looks like the data you would actually buy. Send the spec you would put in a purchase order and we record against that.

Diverse Indian speakers waiting for multilingual data collection sessions — supporting free indian english speech data sample
Diverse Indian speakers waiting for multilingual data collection sessions
03

What to test it against

  • Run it through your existing ASR or TTS pipeline and read the error breakdown by speaker and dialect
  • Check how Indian English code-mixing is transcribed: Indian English embeds Hindi and regional discourse markers, kinship terms, and food and place vocabulary that Western English lexicons lack.
  • Check the transcription convention against your tokeniser — Indian-specific vocabulary flagged as errors by spellcheck-driven QA is the usual failure point
  • Confirm the metadata is complete enough to filter and stratify by
04

What a Indian English sample usually exposes

Indian English has roughly 130 million speakers across Pan-India, with distinct regional accent bands, and models trained on generic multilingual data typically fail on the same things each time.

Commercial English ASR is trained overwhelmingly on US and UK speech. Indian English accent data with substrate-language tagging is the fastest way to close the accuracy gap for Indian deployments.

  • Phonetics your acoustic model may not have seen: Retroflex realisation of /t/ and /d/
  • Utterance types worth sampling separately: Accent-band balanced read speech with substrate tags, Business and support calls in English, Indian names, addresses, PIN codes and lakh/crore amounts
  • Recording geography in the sample: Bengaluru, Delhi, Mumbai
05

What happens after

Nothing automatic. If the sample works, we scope the full build against the same specification and quote a fixed price. If it does not, tell us what failed — that feedback is more useful to us than a polite no.

Balance by substrate language, not by city alone, and tag each speaker so accent-band evaluation is possible after delivery.

Frequently asked

Is the Indian English sample really free?

Yes. There is no charge and no obligation. We cap it at roughly 30 minutes because that is enough to judge quality without becoming an unpaid production run.

Can we use the sample data commercially?

The sample is licensed for evaluation. Full commercial rights and IP transfer come with a paid delivery, including a paid pilot.

How long does it take?

Five to eight working days from an agreed specification, depending on how narrow the speaker cohort is.

Can we specify our own script?

Yes. Send your prompts, wake words or domain vocabulary and we record those instead of our standard set.

Related pages

Request your free Indian English sample

Send the specification you would buy against. Thirty minutes of audio, transcripts and metadata come back within a week.

Request a dataset quote