aidataservices.inAI data collection · India

Sample · मराठी

Free Marathi speech data sample

Thirty minutes of Marathi audio, recorded to your specification with transcripts and full metadata, at no cost. It exists so you can judge us on files rather than on claims.

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Audio waveforms being prepared as ASR training data — Free Marathi speech data sample
Sample size
~30 minutes
Cost
Free
Turnaround
5-8 working days
Formats
WAV 48 kHz + transcript + metadata
01

What the sample contains

  • Marathi audio from at least four speakers with a mixed gender and age spread
  • Coverage of Standard (Puneri), Varhadi (Vidarbha), Marathwadi where your spec calls for dialect breadth
  • Verbatim transcripts in Devanagari, 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
Each step exists to de-risk the next oneFree sample~30 min, proves qualityPaid pilot10-20 h, proves protocolProductionFixed price, stagedNo step is a prerequisite. Teams that already know the spec go straight to production.
02

How to specify it

DecisionOptionsDefault if you do not say
Speech typeScripted / spontaneous / conversational / telephonyScripted plus a spontaneous block
EnvironmentStudio / quiet room / field / call pathStudio and quiet room, split
Sample rate48 kHz, 16 kHz, 8 kHz48 kHz mastered, 16 kHz derived
DialectsStandard (Puneri), Varhadi (Vidarbha), MarathwadiStandard variety plus one regional
AnnotationVerbatim / timestamps / speaker turns / event tagsVerbatim with timestamps

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.

Voice artist recording training data for an AI voice model — supporting free marathi speech data sample
Voice artist recording training data for an AI voice model
03

What to test it against

  • Run it through your existing ASR or TTS pipeline and read the error breakdown by speaker and dialect
  • Check how Marathi code-mixing is transcribed: Mumbai and Pune speech mixes Marathi, Hindi, and English in the same sentence. Marathi-only recordings collected in Pune under-represent the Mumbai reality of tri-lingual switching.
  • Check the transcription convention against your tokeniser — ळ vs ल substitution by Hindi-trained transcribers is the usual failure point
  • Confirm the metadata is complete enough to filter and stratify by
04

What a Marathi sample usually exposes

Marathi has roughly 99 million speakers across Maharashtra, Goa, parts of Karnataka, and models trained on generic multilingual data typically fail on the same things each time.

Available Marathi speech data is dominated by standard Puneri read speech. Vidarbha, Marathwada, and coastal Konkan varieties are severely under-collected, which is exactly where deployed voice products lose accuracy.

  • Phonetics your acoustic model may not have seen: Retains the retroflex lateral ळ, which has no Hindi or English equivalent and is frequently substituted with ल by non-native transcribers
  • Utterance types worth sampling separately: Phonetically balanced read prompts covering ळ, ण and retroflex clusters, Agricultural, banking, and government-scheme domain utterances, Spontaneous two-party conversation with natural Hindi/English switching
  • Recording geography in the sample: Mumbai, Pune, Nagpur
05

What happens after

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.

A representative Marathi cohort should be split roughly 40% western Maharashtra, 25% Vidarbha, 20% Marathwada, 15% Konkan rather than concentrated in Pune.

Frequently asked

Is the Marathi sample really free?

Yes. There is no charge and no obligation. We cap it at roughly 30 minutes because that is enough to judge quality without becoming an unpaid production run.

Can we use the sample data commercially?

The sample is licensed for evaluation. Full commercial rights and IP transfer come with a paid delivery, including a paid pilot.

How long does it take?

Five to eight working days from an agreed specification, depending on how narrow the speaker cohort is.

Can we specify our own script?

Yes. Send your prompts, wake words or domain vocabulary and we record those instead of our standard set.

Related pages

Request your free Marathi sample

Send the specification you would buy against. Thirty minutes of audio, transcripts and metadata come back within a week.

Request a dataset quote