South Asia · Sinhala
Sinhala Conversational Speech Dataset
Sinhala conversational 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 conversational speech in Sinhala is its own problem
Everyday Sinhala in the Colombo urban belt is heavily embedded with English words, especially among younger speakers. If recordings like these are processed as "pure Sinhala", the high-frequency loanwords get thrown out as errors, leaving a corpus that is nowhere near sufficient for real-world conditions.
The field to pin down first: The handling of English loanwords (kept / tagged / replaced) has to be locked, along with whether loanword share is reported separately.
At a glance
| Language | Sinhala |
|---|---|
| Primary region | South Asia |
| Writing system | Sinhala |
| Category | Conversational Speech |
| Specification field to settle first | The handling of English loanwords (kept / tagged / replaced) has to be locked, along with whether loanword share is reported separately. |
| Delivery | Sourced to order, pilot batch before the full run |
What conversational speech data is
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.
What buyers get wrong about it
Natural conversation is full of overlapping speech, interruptions, particles, and laughter. Whether to keep these "messy" parts is the first thing to lock down on a project like this.
The specification field that decides the quote
Whether overlapping speech is kept or split — the two outputs cannot be mixed in a single delivery batch.
The language side: what Sinhala demands
Everyday Sinhala conversation is heavily embedded with English words, especially in the Colombo urban belt. Treating this mixed speech as pure Sinhala strips out high-frequency loanwords as if they were errors.
What we can put in this delivery
-
Read and conversational speech
Scripted recording for TTS, and unscripted conversation for recognition. Specified separately because they need different speaker pools.
-
Transcription to your convention
Orthographic or phonetic, with the guideline written before production and shared with you for review.
-
Speaker metadata
Age band, gender, region and dialect background per file, so you can slice the dataset rather than take it whole.
-
Consent documentation
Signed speaker consent covering the intended use, plus collection methodology and the annotation guideline.
-
Pilot batch
A small batch first, which you can reject. Misalignments surface after a few hours rather than at delivery.
-
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 Sinhala Conversational Speech
How many distinct speakers can you provide for Sinhala Conversational 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. The handling of English loanwords (kept / tagged / replaced) has to be locked, along with whether loanword share is reported separately.
Can you annotate to our own guideline instead of the default?
Yes, and for this pairing we would recommend it. Everyday Sinhala in the Colombo urban belt is heavily embedded with English words, especially among younger speakers. 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 Sinhala Conversational 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 Sinhala
-
Sinhala Short Video Speech
Speech in the talking-head style of short video — fast, emotionally strong, colloquial — used for short video subtitles and content understanding.
-
Sinhala Live Stream Speech
Long-session spoken content from live streams — host monologue and responses to audience interaction — fast-paced and heavily improvised.
-
Sinhala Voice Assistant
Command and dialogue data for voice assistants, usually with intent annotation, covering the full chain from wake word to understanding to response.
-
Sinhala Elderly Voice
Speech data from elderly speakers, usually stratified by age band and health status, used for voice products built for older users.
-
Sinhala Accented English
English speech from non-native speakers or specific regional accents, grouped by accent origin, used to improve accent robustness in ASR.
-
Sinhala Speech Translation
Parallel data pairing source-language audio with target-language translation, used for speech-to-text and speech-to-speech translation models.
Conversational Speech in other languages
-
Indonesian Conversational Speech
Southeast Asia
-
Thai Conversational Speech
Southeast Asia
-
Turkish Conversational Speech
Middle East & Europe
-
Vietnamese Conversational Speech
Southeast Asia
-
Filipino Conversational Speech
Southeast Asia
-
Persian Conversational Speech
Middle East & North Africa
Request Sinhala Conversational 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.