Kolkata, West Bengal · বাংলা
Bengali Speech Data Collection in Kolkata
Rarhi standard Bengali in cholit register, with heavy English mixing in professional speech. That makes Kolkata a specific choice for Bengali collection, not an interchangeable one.
- City
- Kolkata, West Bengal
- Language
- Bengali
- Script
- Bengali
Bengali as spoken in Kolkata
Rarhi standard Bengali in cholit register, with heavy English mixing in professional speech.
Kolkata professional speech mixes English heavily; rural West Bengal much less. A single 'Bengali' dataset without register tags conflates two very different acoustic and lexical distributions.
Recruitment here
Primary Indian Bengali pool; North Bengal varieties require Siliguri fielding.
Tag every speaker as Indian Bengali and record district of origin; mixing in Bangladeshi speech without tags is a common and costly dataset defect.
Studio setup
Treated booth plus transcription team co-located for fast turnaround.
Bengali quality rules
- Three sibilant characters chosen inconsistently for the same sound
- Bangladeshi vs Indian Bengali orthographic conventions mixed within one dataset
- Verb conjugation register (cholit vs sadhu) normalised by transcribers
Session types available
- Cholit-bhasha spontaneous conversation
- Read prompts covering cluster simplification
- Regional dialect sets from North Bengal and Tripura
Building a balanced cohort
A Kolkata-only cohort is appropriate when you are targeting this market specifically. For a general Bengali model, spread the cohort across Kolkata, Siliguri, Durgapur as well.
| Dimension | Typical split | Why it matters for Bengali |
|---|---|---|
| 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 Bengali forms that younger urban speakers have lost |
| Region | West Bengal / Tripura / Assam (Barak Valley) and others | Dialect spread across 5 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 |
Frequently asked
Can you record Bengali in Kolkata?
Yes. Treated booth plus transcription team co-located for fast turnaround.
Is Kolkata Bengali representative?
For this market, yes. For a national model, no single city is: Tag every speaker as Indian Bengali and record district of origin; mixing in Bangladeshi speech without tags is a common and costly dataset defect.
How long does recruitment take?
One to two weeks for standard quotas; longer for narrow age, dialect or occupation requirements.
Collect Bengali in Kolkata
Send hours, speakers and conditions.