Tamil Nadu · Audio annotation
Audio Annotation in Chennai
Labelling of existing audio: speaker diarisation, emotion, intent, events, language identification and segment-level quality tagging, against your label schema. In Chennai, this runs from our local studio setup: Treated booth with dual-channel conversation capability.

- City
- Chennai, Tamil Nadu
- Languages here
- 3
- Turnaround
- Scoped per label complexity; simple diarisation runs at roughly 3-5x real time.
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 |
|---|---|
| Label types | Diarisation, emotion, intent, events, language ID, quality |
| Granularity | Segment, utterance, or frame-level boundaries |
| Schema | Yours, or authored with you before work starts |
| Agreement | Multi-annotator overlap on a defined percentage |
| Tooling | Client tooling supported; otherwise our annotation workflow |
Process
- Schema definition and edge-case documentation
- Annotator training and gold-set calibration
- Production annotation with gold items seeded in
- Adjudication of disagreements by a senior reviewer
- Delivery with per-label agreement statistics
Deliverables
- Labelled data in your schema
- Gold set and calibration results
- Per-label agreement statistics
- Edge-case log
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 audio annotation in Chennai
Send the language, speaker count and conditions.