Indonesian ASR datasets

Ordinary Indonesian conversation runs through three language sources inside one sentence. Indonesian, a regional language such as Javanese or Sundanese, and English loanwords. Each has its own spelling habits, and English loans are written the English way but said the Indonesian way. Without a rule for tagging and spelling each component, two annotators transcribing the same clip produce two different files.

A black and copper headset with a boom microphone resting on a wooden desk beside an open laptop

What ASR work in Indonesian requires

Transcription convention, decided first

Whether to write what was said or what should have been said is the single biggest source of disagreement between annotators. For this language the two diverge often enough that the convention has to be explicit.

Speaker count over hours

Recognition models overfit to voices faster than to vocabulary. A dataset that is long but narrow will test well on held-out audio from the same speakers and fail on anyone new.

Noise that matches deployment

If the model will run on phone audio in a city, training on studio recordings creates a mismatch that no amount of additional clean data fixes.

The mistake that costs the most

The most common mistake is specifying hours without specifying speakers, and then discovering at evaluation time that the model only works on the people who were recorded.

The language-specific factor

In everyday speech, Indonesians mix in local languages (Javanese, Sundanese) and English loanwords heavily. Three language components inside a single sentence is normal, so word segmentation and annotation rules have to be fixed before collection begins.

Specification checklist

LanguageIndonesian
Writing systemLatin
RegionSoutheast Asia
Core keywordASR dataset
Must specifyDistinct speaker count, recording conditions, annotation convention, delivery format
Included by defaultPilot batch, speaker metadata, consent documentation, annotation guideline

Related

  • Indonesian speech data

    Southeast Asia

    The full overview for this language, including what makes it hard to collect.

    • Code-switching
  • Multilingual speech

    Data category

    Running this alongside other languages in one delivery.

  • WER

    Glossary term

    How recognition quality is measured, and what the number does not tell you.

Request Indonesian ASR data

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.

We reply within two business days. Your details are used only to answer this request. See our privacy policy.

  1. You send the spec Language, hours, recording conditions, and the deadline.
  2. We reply within two business days A real number and a real timeline, not a range.
  3. You approve a pilot batch A small run first, so problems surface before the full order.
  4. Full run, then delivery with documents Audio, transcripts, and the consent record for every speaker.
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