Pronunciations & Audio Data

High-quality audio powered by trusted lexicographic expertise.

Our data supports accurate guidance for learners, enhances in-product clarity, and delivers a natural listening experience wherever spoken language matters.

Oxford Languages provides one of the world’s most comprehensive pronunciation and audio datasets, crafted by expert lexicographers and phoneticians. Built on decades of research and editorial standards, our resources offer reliable models of spoken language suited for global audiences and use cases — from language learning to search, assistive technologies, and more.

Our datasets combine phonetic transcriptions, syllabification, and recorded audio, ensuring accuracy across dialects, variants, and contexts.

What’s included

Our data has been carefully compiled by our in-house team of language experts as an output of our language research programme, one of the largest in the world.

Phonetic transcriptions

IPA-based transcriptions aligned with established pronunciation standards
Coverage of major global varieties (e.g., UK and US English)
Stress patterns and syllable boundaries for improved parsing and learning
Consistent formatting designed for ease of integration

Human-recorded audio

Natural, high-quality recordings produced by professional voice artists
Coverage for high-frequency vocabulary and expanding long-tail terms
Multiple pronunciation variants where appropriate
Clean, studio-quality files optimised for digital products

Pronunciation metadata

Preferred vs. variant forms
Regional labels
Audio file detail (duration, sampling rate, etc.)
Word class distinctions where relevant

Why use our pronunciations data?

We partner with you throughout the integration process, offering expert guidance, language sourcing, and ongoing support to ensure your pronunciations/audio feature launches smoothly and continues to perform reliably.

Trusted accuracy

Our pronunciation data is curated and validated by expert lexicographers, ensuring authoritative guidance consistent with Oxford’s world-leading dictionary research.