Free Tamil speech data sample

• Tamil audio from at least four speakers with a mixed gender and age spread
• Coverage of Chennai (Madras Bashai), Kongu (Coimbatore), Madurai where your spec calls for dialect breadth
• Verbatim transcripts in Tamil, with a romanised parallel transcript on request
• Per-file metadata: speaker ID, age band, gender, district, device, environment and SNR
• A short QA report showing how the files were checked before they were sent

The sample is only useful if it looks like the data you would actually buy. Send the spec you would put in a purchase order and we record against that.

• Run it through your existing ASR or TTS pipeline and read the error breakdown by speaker and dialect
• Check how Tamil code-mixing is transcribed: Tanglish is the default urban register. Technology, finance, and workplace vocabulary is largely English embedded in Tamil syntax.
• Check the transcription convention against your tokeniser — Transcribers normalising spoken Tamil into literary Tamil, destroying the acoustic-text alignment is the usual failure point
• Confirm the metadata is complete enough to filter and stratify by

Tamil has roughly 82 million speakers across Tamil Nadu, Puducherry, parts of Karnataka and Kerala, and models trained on generic multilingual data typically fail on the same things each time.

Almost all public Tamil audio is literary read speech from news or scripture. Genuine colloquial Tamil, especially southern and Kongu varieties, is the single biggest gap for anyone building Tamil voice products.

• Phonetics your acoustic model may not have seen: Extreme diglossia: written Tamil and spoken Tamil differ so much that read-speech corpora are near-useless for conversational ASR
• Utterance types worth sampling separately: Colloquial spontaneous conversation transcribed verbatim, Diglossia pairs: the same content in written and spoken register, Command-and-control and IVR-style utterances
• Recording geography in the sample: Chennai, Coimbatore, Madurai

Nothing automatic. If the sample works, we scope the full build against the same specification and quote a fixed price. If it does not, tell us what failed — that feedback is more useful to us than a polite no.

Recruit by district rather than by city alone; Chennai-only cohorts produce models that degrade sharply in the south and west of the state.