---
language:
- njo
license: cc-by-4.0
task_categories:
- automatic-speech-recognition
pretty_name: "Ao ASR Dataset"
tags:
- speech
- asr
- northeast-india
- ao
---

# Ao (njo) — ASR dataset

A small **Ao (njo)** speech-to-text dataset for automatic speech recognition
(ASR) of a low-resource North-East India language. Each example pairs a short audio
clip with its Romanized (Latin-script) transcript.

### Source

Derived from the ARTPARK-IISc Vaani project (https://vaani.iisc.ac.in/)

## Splits

| Split | Samples |
|-------|--------:|
| train | 259 |
| validation | 20 |
| test | 10 |

> **Note on the test size.** The test split has only **10** utterances, so downstream evaluation on it is indicative only.

## Data fields

Each example has:

- `audio` — the audio recording (16 kHz mono).
- `text` — the Romanized (Latin-script) transcript.
- `language` — the ISO 639-3 language code (`njo`).

## Used by

This dataset trains and evaluates the paired ASR model
[`sulabhkatiyar/ne-asr-njo`](https://huggingface.co/sulabhkatiyar/ne-asr-njo)
— a character-level CTC adapter over a frozen
[`facebook/mms-1b-all`](https://huggingface.co/facebook/mms-1b-all) encoder.
An augmented training variant is available at
[`sulabhkatiyar/ne-asr-dataset-njo-aug`](https://huggingface.co/datasets/sulabhkatiyar/ne-asr-dataset-njo-aug).

Part of the **[NE Speech AI V1](https://huggingface.co/collections/sulabhkatiyar/ne-speech-ai-v1-6a8efa7593551e32d63b876b)** collection.

## Limitations

- Ao is a **low-resource** language; this dataset is small and may not cover the full range of speakers, dialects, domains, and recording conditions.
- Transcriptions are in **Latin / Roman script** (romanized); romanization conventions can introduce label noise.
- **The test split is very small (n=10).** Any accuracy figure computed on it (see the paired model card) is anecdotal and should be read as indicative only, not a dependable estimate.

## License

`cc-by-4.0`, following the ARTPARK-IISc **Vaani** source dataset (https://vaani.iisc.ac.in/), from which this data is derived. Please retain that attribution and comply with the license terms when using this dataset.