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---
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task_categories:
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- automatic-speech-recognition
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---
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# WikIPA
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## Dataset Description
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**WikIPA** is a multilingual benchmark dataset designed for **speech-to-IPA (STIPA) transcription**, linking spoken audio with International Phonetic Alphabet (IPA) transcriptions.
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The dataset integrates two large-scale community-driven resources:
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* **WikiPron** — human-curated IPA pronunciations extracted from Wiktionary
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* **Lingua Libre** — crowdsourced recordings of spoken lexical items
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By connecting these two resources, WikIPA provides a dataset that links **speech audio to phonetic representations**, enabling evaluation of models that transcribe speech directly into IPA.
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The dataset supports both:
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* **Broad (phonemic) IPA transcriptions**
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* **Narrow (phonetic) IPA transcriptions**
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WikIPA is introduced in the paper:
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> **WikIPA: Integrating WikiPron and Lingua Libre for Multilingual IPA Transcription**
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The dataset contains **289,694 audio–IPA pairs across 78 languages**, making it one of the largest multilingual resources for speech-to-IPA evaluation.
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## Citation
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If you use WikIPA or this repository, please cite:
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```bibtex
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@inproceedings{cassotti2026wikipa,
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title={WikIPA: Integrating WikiPron and Lingua Libre for Multilingual IPA Transcription},
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author={Cassotti, Pierluigi and Suchardt, Jacob Lee and De Cristofaro, Domenico},
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booktitle={Proceedings of LREC 2026},
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year={2026}
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}
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```
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---
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# Dataset Summary
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| Property | Value |
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| -------------------- | -------------------------- |
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| Languages | 78 |
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| Total samples | 289,694 |
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| Audio duration (avg) | 1.15 seconds |
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| Speakers | 962 |
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| Task | Speech → IPA transcription |
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Each entry corresponds to a **single spoken lexical item** recorded in Lingua Libre and linked to **IPA pronunciations from WikiPron**.
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---
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# Dataset Structure
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The dataset consists of **audio recordings paired with IPA transcriptions and metadata**.
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Typical fields include:
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* **audio** – speech recording
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* **lexical_item** – word or phrase spoken
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* **ipa_broad** – phonemic transcription (when available)
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* **ipa_narrow** – phonetic transcription (when available)
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* **language** – language code
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* **speaker** – identifier of the speaker
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* **dialect** – dialect information when available
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Example entry:
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```json
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{
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"audio": "...",
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"lexical_item": "domingo",
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"ipa_broad": "[d o m i N g o]",
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"ipa_narrow": "[d̪õmiŋgo]",
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"language": "spa",
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"speaker": "Eavqwiki"
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}
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```
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A lexical item may have **multiple possible IPA transcriptions**, reflecting pronunciation variants or dialectal differences.
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---
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# Data Splits
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The dataset is divided into **training and test splits**.
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| Split | Examples |
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| ----- | -------- |
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| train | 231,755 |
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| test | 57,939 |
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| total | 289,694 |
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The **test split is stratified by language** to ensure balanced evaluation across languages.
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---
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# Languages
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WikIPA covers **78 languages** from multiple language families.
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The dataset includes languages with varying phonological complexity and different levels of phonetic annotation detail.
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Both **broad and narrow IPA transcriptions** are available depending on the language and Wiktionary annotations.
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---
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# Usage
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Load the dataset using `datasets`:
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```python
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from datasets import load_dataset
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dataset = load_dataset("pierluigic/WikIPA")
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```
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Example:
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```python
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sample = dataset["train"][0]
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print(sample["audio"])
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print(sample["ipa_broad"])
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print(sample["language"])
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```
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---
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# Tasks
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The dataset is intended for:
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* **Speech-to-IPA transcription (STIPA)**
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* **Universal phone recognition**
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* **Phonetic modeling**
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* **Cross-lingual speech modeling**
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* **Evaluation of multilingual phonetic transcription systems**
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---
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