Multilingual Datasets
Multilingual Speech Datasets in 30+ Languages
Native speakers, linguist-designed scripts, and native QA – for every language we deliver.
Format
WAV / FLAC
Sample rate
48kHz / 24-bit
Languages
30+
Speakers
Per language
Turnaround
8-16 weeks
Compliance
GDPR + EU AI Act
About this dataset
Speech data that crosses borders
Native speakers across 30+ languages, all recorded to the same studio standard. Every dataset is linguist-designed and reviewed by native QA experts. No machine translations, no untrained volunteers, no variable quality between languages.
We treat every language as a primary requirement, not an afterthought bolted onto an English-first pipeline. Scripts are designed by linguists who understand the phonetic, grammatical, and prosodic characteristics of each language. Speakers are verified native professionals. And every recording goes through native-language quality assurance before delivery.
What’s included
Raw studio audio from native speakers
Aligned transcriptions in original language
Metadata with speaker demographics
Linguist-reviewed pronunciation guides
Native language quality assurance reports
Custom delivery format and structure
Use cases
Who uses multilingual speech data
Global Voice Assistants
Deploy consistent voice experiences across every language and market.
Multilingual ASR
Train speech recognition models that understand native accents and pronunciation.
International TTS
Create natural-sounding text-to-speech engines for global audiences.
Language Learning
Train AI tutors with authentic native speaker pronunciation and phrasing.
Cross-lingual Research
Study linguistic patterns across multiple languages with comparable quality.
Market Expansion
Localise products quickly with production-ready multilingual audio data.
The Flaunt difference
Every language treated as a first language
Flaunt Audio
Native speakers in studio
Linguist-designed scripts
Native QA per language
Consistent quality across all languages
Typical provider
Remote crowd-sourced recordings
Machine-translated scripts
Automated quality checks only
Variable quality per language
Technical specifications
Delivered to your exact specification
Audio
48kHz/24-bit WAV (default). Also available: 16kHz, 22.05kHz, 44.1kHz. Formats: WAV, FLAC, MP3, OGG. Mono or stereo. Custom channel configs on request.
Transcription
Time-aligned transcriptions in TextGrid, JSON, CSV, or CTM format. Orthographic and phonetic options. Delivered in original language script with romanisation available on request.
Metadata
Speaker ID, age, gender, language, dialect/region, recording date, session ID, microphone type, room ID. Custom fields on request. Delivered as CSV or JSON sidecar files.
FAQ
Multilingual data FAQ
How many languages are available?
We currently offer 30+ languages with native speaker coverage. Our catalogue expands regularly based on client demand. Contact us for specific language availability.
Are the speakers truly native?
Yes. All speakers are native or native-fluent with verified backgrounds. Each recording is reviewed by native linguists before delivery.
Can I get custom recording sessions?
Absolutely. We offer custom recording sessions with your own scripts, translated and reviewed by linguists. Turnaround is typically 8-16 weeks depending on scope and language count.
What about dialects and regional accents?
We can provide speakers from specific regions and dialects within each language. This should be discussed during your project planning phase so we can recruit the right speakers.
Is the data GDPR compliant?
Yes. All data collection and processing follows GDPR requirements and EU AI Act guidelines. We maintain full documentation of consent and speaker agreements for every recording.
What are the licensing terms?
Licensing varies by use case. We offer commercial licenses for AI training, product development, research, and more. Contact our team for a custom quote.
Related datasets
You might also need
ASR Training Data
Multi-speaker datasets for speech recognition training across languages.
Accent and Dialect Data
Regional accent and dialect samples for localised speech applications.
Ready to scale globally?
Get multilingual datasets that maintain quality across every language. Talk to our team about your project needs.