South Asia · Bengali
Bangla In-the-Wild Speech Dataset
Bangla in-the-wild speech sourced to your specification — no inventory, no fixed listing. This page covers what is specifically hard about this pairing, and which fields your specification needs to pin down.
Why in-the-wild speech in Bangla is its own problem
Bangla in-the-wild speech has to be collected separately by region — the natural language environments of Dhaka and Kolkata differ, and a single batch ends up with a bimodal regional distribution, on top of the differences in collection conditions between the two.
The field to pin down first: Whether bystander speech is kept or cut, and if kept, whether the bystander's regional variety is labelled — in-the-wild Bangla recordings routinely capture a second speaker from a different variety.
At a glance
| Language | Bangla |
|---|---|
| Primary region | South Asia |
| Writing system | Bengali |
| Category | In-the-Wild Speech |
| Specification field to settle first | Whether bystander speech is kept or cut, and if kept, whether the bystander's regional variety is labelled — in-the-wild Bangla recordings routinely capture a second speaker from a different variety. |
| Delivery | Sourced to order, pilot batch before the full run |
What in-the-wild speech data is
Speech collected under fully natural conditions — no studio, no topic constraints — as close to real usage as collection gets.
What buyers get wrong about it
Real and usable pull against each other — the more natural the audio, the harder it is to annotate. The balance has to be designed into the collection plan, not patched in afterward.
The specification field that decides the quote
Recording device (phone, headset, professional mic) and collection environment must be logged per file.
The language side: what Bangla demands
The Bangla of Bangladesh and of West Bengal in India has diverged in vocabulary and accent — the everyday word for the same meaning is often different. In search terms and annotation alike, bangla tracks real usage better than bengali.
What we can put in this delivery
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Read and conversational speech
Scripted recording for TTS, and unscripted conversation for recognition. Specified separately because they need different speaker pools.
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Transcription to your convention
Orthographic or phonetic, with the guideline written before production and shared with you for review.
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Speaker metadata
Age band, gender, region and dialect background per file, so you can slice the dataset rather than take it whole.
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Consent documentation
Signed speaker consent covering the intended use, plus collection methodology and the annotation guideline.
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Pilot batch
A small batch first, which you can reject. Misalignments surface after a few hours rather than at delivery.
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Delivery in your format
Audio format, sampling rate, segmentation length and metadata schema set to your pipeline's requirements.
What arrives in a delivery
| Component | What it is |
|---|---|
| Audio files | Format, sampling rate and segmentation length set to your pipeline. Named to a convention you specify. |
| Transcription | Orthographic or phonetic, produced under a guideline you review before production starts. |
| Speaker metadata | Age band, gender, region and dialect background per file, plus a speaker identifier so the dataset can be sliced. |
| Recording conditions | Environment, device and, where relevant, measured signal-to-noise ratio per file. |
| Annotation guideline | The document the annotators worked from, so you can reproduce the conventions on your own data. |
| Consent records | Signed speaker consent covering your intended use, with the transfer mechanism addressed where required. |
| Collection methodology | How speakers were recruited, screened and scheduled — the part that tells you how biased the pool is. |
| Quality report | Pilot outcome, re-work log, and the annotator agreement figures where the task supports measuring them. |
Questions we get about Bangla In-the-Wild Speech
How many distinct speakers can you provide for Bangla In-the-Wild Speech?
It depends on the specification and the timeline, and we will give a real number rather than a target. For this pairing, speaker recruitment is usually the step that sets the schedule. Whether bystander speech is kept or cut, and if kept, whether the bystander's regional variety is labelled — in-the-wild Bangla recordings routinely capture a second speaker from a different variety.
Can you annotate to our own guideline instead of the default?
Yes, and for this pairing we would recommend it. Bangla in-the-wild speech has to be collected separately by region — the natural language environments of Dhaka and Kolkata differ, and a single batch ends up with a bimodal regional distribution, on top of the differences in collection conditions between the two.. That is exactly the kind of decision a default guideline leaves open, and it is where annotators diverge. Send us your guideline, or we will draft one and you can review it before production starts.
Do you offer a sample before we commit to a full run?
Yes. Select a free sample in the request form and describe what you need. A pilot batch is the cheapest way to establish whether the quality bar is reachable for Bangla In-the-Wild Speech before committing to the full volume.
Is the data licensed or owned outright?
Licensing terms are set per project, so tell us how the model will be used and whether it will be distributed. Consent documentation travels with the data either way, and we do not handle medical or clinical data or recorded telephone calls.
Other datasets in Bangla
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Bangla Voice Assistant
Command and dialogue data for voice assistants, usually with intent annotation, covering the full chain from wake word to understanding to response.
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Bangla Elderly Voice
Speech data from elderly speakers, usually stratified by age band and health status, used for voice products built for older users.
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Bangla Accented English
English speech from non-native speakers or specific regional accents, grouped by accent origin, used to improve accent robustness in ASR.
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Bangla Speech Translation
Parallel data pairing source-language audio with target-language translation, used for speech-to-text and speech-to-speech translation models.
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Bangla Call Center Speech
Recorded customer-service calls, real or simulated, capturing both the agent and the caller side, used for call center QC, intent recognition, and dialogue systems.
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Bangla Conversational Speech
Speech from natural conversation between two or more people, on open or semi-structured topics, used for conversational AI, voice assistants, and small talk models.
In-the-Wild Speech in other languages
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Burmese In-the-Wild Speech
Southeast Asia
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Amharic In-the-Wild Speech
Sub-Saharan Africa
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Ukrainian In-the-Wild Speech
Europe
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Swahili In-the-Wild Speech
Sub-Saharan Africa
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Kurdish In-the-Wild Speech
Middle East & North Africa
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Hausa In-the-Wild Speech
Sub-Saharan Africa
Request Bangla In-the-Wild Speech
Tell us the language, the hours, and what the data needs to look like. You will get a real number and a real timeline — not a range. If we cannot source it well, we will tell you that instead.
- Pilot batch before the full run, so problems surface early.
- Consent documentation delivered with the data.
- No medical or clinical data. No recorded telephone calls.