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West Bengal · Audio annotation

Audio Annotation in Kolkata

Labelling of existing audio: speaker diarisation, emotion, intent, events, language identification and segment-level quality tagging, against your label schema. In Kolkata, this runs from our local studio setup: Treated booth plus transcription team co-located for fast turnaround.

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Annotator labelling audio segments and speaker turns — Audio Annotation in Kolkata
City
Kolkata, West Bengal
Languages here
4
Turnaround
Scoped per label complexity; simple diarisation runs at roughly 3-5x real time.
01

Languages recorded in Kolkata

  • Bengali
  • Hindi
  • Indian English
  • Urdu
Languages recorded in KolkataBengaliHindiIndian EnglishUrduKolkataWest BengalRarhi standard Bengali in cholit register, with heavy English mixing in professional speech.City choice is a data-quality decision, not a logistics one.
02

Local dialect profile

Rarhi standard Bengali in cholit register, with heavy English mixing in professional speech.

Primary Indian Bengali pool; North Bengal varieties require Siliguri fielding.

Studio-grade voice recording session for text-to-speech training data — supporting audio annotation in kolkata
Studio-grade voice recording session for text-to-speech training data
03

Technical specification

ParameterStandard
Label typesDiarisation, emotion, intent, events, language ID, quality
GranularitySegment, utterance, or frame-level boundaries
SchemaYours, or authored with you before work starts
AgreementMulti-annotator overlap on a defined percentage
ToolingClient tooling supported; otherwise our annotation workflow
04

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
05

Deliverables

  • Labelled data in your schema
  • Gold set and calibration results
  • Per-label agreement statistics
  • Edge-case log
06

Why Kolkata for this work

Primary Indian Bengali pool; North Bengal varieties require Siliguri fielding.

Treated booth plus transcription team co-located for fast turnaround. 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 Kolkata?

Treated booth plus transcription team co-located for fast turnaround.

Which languages can you collect in Kolkata?

Bengali, Hindi, Indian English, Urdu. 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 Kolkata

Send the language, speaker count and conditions.

Request a dataset quote