TTS datasets · অসমীয়া
Assamese TTS Training Data
Single-speaker and multi-speaker text-to-speech corpora with phonetically balanced scripts, consistent prosody, and studio-grade capture suitable for neural TTS. This page covers how that works specifically for Assamese, where assamese has the voiceless velar fricative /x/, unique among major indian languages and routinely mis-modelled.
- Language
- Assamese (as-IN)
- Dialects covered
- 4
- Typical programme
- 100-500 hours
- Cities
- Guwahati, Jorhat, Dibrugarh
What changes when the language is Assamese
The service specification stays constant across languages; the linguistics do not. For Assamese, three things drive the design of a tts datasets programme.
- Assamese has the voiceless velar fricative /x/, unique among major Indian languages and routinely mis-modelled
- Dialect spread: Kamrupi, Goalparia, Upper Assam (Sibsagar standard), Barak Valley contact varieties
- Assamese speech mixes Hindi, English and Bengali, with substantial contact influence in Barak Valley and tea-garden communities.
Technical specification
| Parameter | Standard |
|---|---|
| Sample rate | 48 kHz, 24-bit |
| Speaker consistency | Same booth, mic, distance and time-of-day banding across sessions |
| Script | Phonetically balanced, diphone-covering, domain-extended |
| Prosody | Neutral base set plus optional expressive styles |
| Alignment | Text-audio alignment verified per utterance |
| Silence | Leading/trailing silence trimmed to a fixed window |
Assamese cohort design
Expect longer fielding times and higher per-hour cost than for Hindi or Marathi; the speaker pool with transcription-grade literacy is smaller.
| Dimension | Typical split | Why it matters for Assamese |
|---|---|---|
| Gender | 50 / 50 | Pitch range differences change acoustic model behaviour; unbalanced cohorts bias recognition |
| Age | 18-25: 30%, 26-40: 40%, 41-60: 30% | Older speakers retain conservative Assamese forms that younger urban speakers have lost |
| Region | Assam / Arunachal Pradesh / parts of Nagaland and Meghalaya and others | Dialect spread across 4 recognised varieties |
| Education | Mixed, including below-graduate | Prompt-reading fluency correlates with education and skews prosody |
| Condition | Studio / quiet room / field | Match the noise profile of your deployment |
Process
- 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
Assamese-specific quality rules
- Bengali characters substituted for Assamese ৰ / ৱ
- Goalparia and Kamrupi forms standardised to Sibsagar Assamese
- Tea-garden community speech excluded because transcribers cannot handle it
Session drift is the main TTS killer. Every session is compared acoustically against the reference session and re-recorded if it drifts.
Deliverables
- Studio WAV per utterance
- Verified transcripts and pronunciation notes
- Phoneme coverage report
- Voice talent licence and consent documentation
Worked example
A representative Assamese tts datasets engagement: 100 hours from 300 speakers, 50/50 gender, ages 18-45, spread across Guwahati, Jorhat, Dibrugarh, recorded to the specification above and delivered in WAV with a per-utterance manifest.
Timeline: 4-8 weeks for a 20-40 hour single-speaker voice build including casting.
Where this data is missing today
Extremely low-resource. Almost no spontaneous Assamese speech data exists publicly, and non-standard dialects have none.
Frequently asked
How much does Assamese tts datasets cost?
Priced per delivered hour or unit against a written spec. The cost drivers for Assamese are dialect spread, demographic narrowness and recording condition, in that order.
Which Assamese dialects are included?
By default Kamrupi, Goalparia, Upper Assam (Sibsagar standard), Barak Valley contact varieties and others, tagged per speaker. You can also commission a single-dialect corpus if you are targeting one region.
Can you deliver Assamese data in our format?
Yes. Studio WAV per utterance is the default, but naming, schema and directory structure follow your pipeline.
How long does a Assamese programme take?
4-8 weeks for a 20-40 hour single-speaker voice build including casting.
Request a Assamese tts datasets quote
Hours, speakers, dialects, deadline. Send what you have.