aidataservices.inAI data collection · India

Service explainers

What is transcription services and how does it work?

Updated 2026-08-01 · 4 min read

Transcriber timestamping Indian language audio — illustration for: What is transcription services and how does it work?

Short answer

Verbatim and clean-read transcription of Indian-language audio by native speakers of the target variety, delivered against a written style guide with measured agreement. In practice the work runs as style guide authoring and client sign-off, then transcriber calibration and agreement measurement, then first pass transcription, and you receive transcripts in your schema, style guide. 1-2 weeks per 100 audio hours per language.

Key takeaways

The argument at a glance1The style guide is the deliverable that determines whether your data is usable. It is written first and shipped with the d…2Typical buyers: ASR training, Search and analytics, Compliance review.3Recruitment approach: Transcribers matched to the dialect of the audio, not just to the language.
  • The style guide is the deliverable that determines whether your data is usable. It is written first and shipped with the data.
  • Typical buyers: ASR training, Search and analytics, Compliance review.
  • Recruitment approach: Transcribers matched to the dialect of the audio, not just to the language.

What the service covers

Verbatim and clean-read transcription of Indian-language audio by native speakers of the target variety, delivered against a written style guide with measured agreement.

  • Transcripts in your schema
  • Style guide
  • QA and agreement report

Technical specification

These are defaults, not limits. Where your pipeline requires different values, they replace ours in the statement of work rather than being converted after delivery.

ParameterStandard
ModesVerbatim, clean verbatim, or clean-read
TimestampsUtterance or word level
ScriptNative script, romanised, or dual-script delivery
TagsSpeaker, noise, overlap, unintelligible, code-switch
Accuracy target99% on clean studio audio; agreed per-project on field audio
Audio waveforms being prepared as ASR training data — service explainers context for What is transcription services and how does it work
Audio waveforms being prepared as ASR training data

How the work runs

  • Style guide authoring and client sign-off
  • Transcriber calibration and agreement measurement
  • First pass transcription
  • Independent second-pass review
  • Automated rule checks and delivery

Quality control and acceptance

The style guide is the deliverable that determines whether your data is usable. It is written first and shipped with the data.

Failures are remedied by re-collection rather than by editing delivered files, because repaired audio carries artefacts that survive into the trained model.

Who this is for

Recruitment for this service works as follows. Transcribers matched to the dialect of the audio, not just to the language.

  • ASR training
  • Search and analytics
  • Compliance review

Timelines

1-2 weeks per 100 audio hours per language.

Multi-language programmes run in parallel rather than in sequence, so a five-language scope does not take five times as long.

Frequently asked questions

What is included in transcription services?

Transcripts in your schema, Style guide, QA and agreement report, delivered against a written specification with acceptance criteria attached.

How long does transcription services take?

1-2 weeks per 100 audio hours per language.

How is quality measured?

The style guide is the deliverable that determines whether your data is usable. It is written first and shipped with the data.

Which languages are supported?

Fifteen Indian languages plus Indian English, including Hindi, Marathi, Tamil, Telugu, Kannada.

Related reading

Turn this into a dataset specification

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