Tamil Nadu · ASR datasets
ASR Training Data in Chennai
Transcribed speech corpora built to train and evaluate automatic speech recognition, with verbatim transcription, timestamps and per-token language tagging where code-mixing occurs. In Chennai, this runs from our local studio setup: Treated booth with dual-channel conversation capability.
- City
- Chennai, Tamil Nadu
- Languages here
- 3
- Turnaround
- Transcription adds roughly 1-2 weeks per 100 hours after recording, per language.
Languages recorded in Chennai
- Tamil
- Indian English
- Telugu
Local dialect profile
Madras Bashai colloquial Tamil, sharply different from literary Tamil used in read-speech corpora.
Deep Tamil pool; district screening needed to avoid an all-Chennai accent profile.
Technical specification
| Parameter | Standard |
|---|---|
| Audio | 16 kHz or 48 kHz PCM WAV |
| Transcription | Verbatim, including disfluencies, false starts and fillers |
| Timestamps | Utterance level by default; word level on request |
| Tagging | Noise, overlap, unintelligible, foreign-language and code-switch tags |
| Normalisation | Raw and normalised text columns delivered separately |
| Split | Train/dev/test splits with no speaker leakage across splits |
Process
- Style guide authored per language, covering numerals, loanwords, script and disfluency rules
- Transcriber calibration round with inter-annotator agreement measurement
- First-pass transcription
- Second-pass native review
- Automated consistency checks against the style guide
- Split generation with speaker-disjoint partitions
Deliverables
- Audio plus aligned transcripts (JSON/TSV, or your schema)
- Style guide as delivered documentation
- Inter-annotator agreement report
- Speaker-disjoint train/dev/test splits
Why Chennai for this work
Deep Tamil pool; district screening needed to avoid an all-Chennai accent profile.
Treated booth with dual-channel conversation capability. Sessions here follow the same template as every other city in the network, so a multi-city cohort stays acoustically consistent.
Frequently asked
Do you have a studio in Chennai?
Treated booth with dual-channel conversation capability.
Which languages can you collect in Chennai?
Tamil, Indian English, Telugu. Other languages are possible where migrant communities are present, with residence and nativeness screening.
Can sessions run outside the studio?
Yes. Field recording in homes, vehicles and public spaces is available where your deployment conditions require it, with noise profiles documented per session.
Book asr datasets in Chennai
Send the language, speaker count and conditions.