Maharashtra · Audio annotation
Audio Annotation in Mumbai
Labelling of existing audio: speaker diarisation, emotion, intent, events, language identification and segment-level quality tagging, against your label schema. In Mumbai, this runs from our local studio setup: Treated booths in the western suburbs with parallel session capacity for multi-speaker conversation work.

- City
- Mumbai, Maharashtra
- Languages here
- 6
- Turnaround
- Scoped per label complexity; simple diarisation runs at roughly 3-5x real time.
Languages recorded in Mumbai
- Marathi
- Hindi
- Hinglish
- Gujarati
- Urdu
- Indian English
Local dialect profile
Bambaiya Hindi-Marathi contact speech with constant three-way switching; the densest code-mixing environment in India.
Migrant-heavy, so speakers of almost any Indian language can be found, but native-region screening is essential.

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 Mumbai for this work
Migrant-heavy, so speakers of almost any Indian language can be found, but native-region screening is essential.
Treated booths in the western suburbs with parallel session capacity for multi-speaker conversation work. 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 Mumbai?
Treated booths in the western suburbs with parallel session capacity for multi-speaker conversation work.
Which languages can you collect in Mumbai?
Marathi, Hindi, Hinglish, Gujarati, Urdu, Indian English. 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 Mumbai
Send the language, speaker count and conditions.