Sample · অসমীয়া
Free Assamese speech data sample
Thirty minutes of Assamese 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.

- Sample size
- ~30 minutes
- Cost
- Free
- Turnaround
- 5-8 working days
- Formats
- WAV 48 kHz + transcript + metadata
What the sample contains
- Assamese audio from at least four speakers with a mixed gender and age spread
- Coverage of Kamrupi, Goalparia, Upper Assam (Sibsagar standard) where your spec calls for dialect breadth
- Verbatim transcripts in Assamese (Eastern Nagari), 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
How to specify it
| Decision | Options | Default if you do not say |
|---|---|---|
| Speech type | Scripted / spontaneous / conversational / telephony | Scripted plus a spontaneous block |
| Environment | Studio / quiet room / field / call path | Studio and quiet room, split |
| Sample rate | 48 kHz, 16 kHz, 8 kHz | 48 kHz mastered, 16 kHz derived |
| Dialects | Kamrupi, Goalparia, Upper Assam (Sibsagar standard) | Standard variety plus one regional |
| Annotation | Verbatim / timestamps / speaker turns / event tags | Verbatim 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.

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 Assamese code-mixing is transcribed: Assamese speech mixes Hindi, English and Bengali, with substantial contact influence in Barak Valley and tea-garden communities.
- Check the transcription convention against your tokeniser — Bengali characters substituted for Assamese ৰ / ৱ is the usual failure point
- Confirm the metadata is complete enough to filter and stratify by
What a Assamese sample usually exposes
Assamese has roughly 15 million speakers across Assam, Arunachal Pradesh, parts of Nagaland and Meghalaya, and models trained on generic multilingual data typically fail on the same things each time.
Extremely low-resource. Almost no spontaneous Assamese speech data exists publicly, and non-standard dialects have none.
- Phonetics your acoustic model may not have seen: Assamese has the voiceless velar fricative /x/, unique among major Indian languages and routinely mis-modelled
- Utterance types worth sampling separately: Spontaneous conversation across Upper and Lower Assam, Read prompts covering /x/ and Assamese-specific graphemes, Government-service and banking domain utterances
- Recording geography in the sample: Guwahati, Jorhat, Dibrugarh
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.
Expect longer fielding times and higher per-hour cost than for Hindi or Marathi; the speaker pool with transcription-grade literacy is smaller.
Frequently asked
Is the Assamese 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 Assamese sample
Send the specification you would buy against. Thirty minutes of audio, transcripts and metadata come back within a week.