South Asia · Sinhala
Sinhala Audiobook Dataset
Sinhala audiobook 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 audiobook in Sinhala is its own problem
Long Sinhala audiobook texts carry a steady density of English loanwords, modern subject matter especially. How a reader handles them — English pronunciation or Sinhala-ized — tends to drift over a long text.
The field to pin down first: Whether narration uses literary or colloquial Sinhala — the two differ in verb forms and pronouns throughout, and a book that mixes them is usable for neither.
At a glance
| Language | Sinhala |
|---|---|
| Primary region | South Asia |
| Writing system | Sinhala |
| Category | Audiobook |
| Specification field to settle first | Whether narration uses literary or colloquial Sinhala — the two differ in verb forms and pronouns throughout, and a book that mixes them is usable for neither. |
| Delivery | Sourced to order, pilot batch before the full run |
What audiobook data is
Continuous long-form narration in audiobook style, steady in intonation and generous in duration, the main source material for high-quality TTS.
What buyers get wrong about it
Consistency is the hardest part of long-form narration — over ten hours, one speaker's pace and timbre drift. Segment-by-segment QC and a re-record mechanism are needed.
The specification field that decides the quote
Whether timbre must stay consistent across chapters (the same speaker recording on different days) — this drives the schedule and the cost.
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
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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 Sinhala Audiobook
How many distinct speakers can you provide for Sinhala Audiobook?
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 narration uses literary or colloquial Sinhala — the two differ in verb forms and pronouns throughout, and a book that mixes them is usable for neither.
Can you annotate to our own guideline instead of the default?
Yes, and for this pairing we would recommend it. Long Sinhala audiobook texts carry a steady density of English loanwords, modern subject matter especially. 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 Audiobook 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
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Sinhala Children Speech
Speech data from child speakers, grouped by age band, used for children's speech recognition and children's education products.
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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.
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Sinhala Live Stream Speech
Long-session spoken content from live streams — host monologue and responses to audience interaction — fast-paced and heavily improvised.
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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.
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Sinhala 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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Sinhala Accented English
English speech from non-native speakers or specific regional accents, grouped by accent origin, used to improve accent robustness in ASR.
Audiobook in other languages
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Bangla Audiobook
South Asia
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Khmer Audiobook
Southeast Asia
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Arabic (Egyptian) Audiobook
Middle East & North Africa
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Arabic (Gulf) Audiobook
Middle East & North Africa
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Kannada Audiobook
South Asia
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Punjabi Audiobook
South Asia
Request Sinhala Audiobook
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.