Europe · Ukraine
Ukrainian conversational speech dataset
1,500 hours of spontaneous Ukrainian conversations recorded in Ukraine across 150 vetted native speakers. Dual-channel audio with time-aligned transcripts, speaker metadata (age, gender, region, device), and full chain-of-consent documentation. Licensed for commercial ASR, TTS, and voice AI training.
Dataset specifications
| Language | Ukrainian |
|---|---|
| Recorded in | Ukraine |
| Speech type | Spontaneous two-person conversations |
| Volume | 1,500 hours |
| Speakers | 150 vetted native speakers |
| Audio | Dual-channel (one channel per speaker) |
| Transcripts | Time-aligned, human-verified |
| Metadata | Age, gender, region, recording device |
| License | Commercial (training & evaluation) |
| Price | $85 per hour of audio |
Need more hours, another dialect or your own recording setup? We collect speech data to spec.
Built for
Training and evaluating speech models that must handle real Ukrainian speech:
- Automatic speech recognition (ASR / STT)
- Text-to-speech & voice synthesis prosody
- Voice agents and IVR for Ukraine
- Speaker diarization & turn-taking models
- Speech LLM / audio-understanding fine-tuning
Why conversational data?
Models trained on read speech consistently underperform on spontaneous audio. Disfluencies, overlap, and natural speech rates aren’t in the training distribution. This dataset closes that gap for Ukrainian. Read more in our guide to conversational vs. scripted speech data.
Free samples
Audit the Ukrainian data yourself
Share your company email and we’ll email you representative audio, matching transcripts, and the metadata schema. Check audio quality, transcript accuracy, and speaker diversity before you spend a dollar.
Public alternatives
Public Ukrainian speech data vs. this dataset
| Source | What it is | License | Commercial training |
|---|---|---|---|
| Mozilla Common Voice Ukrainian (Scripted Speech) (opens in a new tab)Mozilla Common Voice (via Mozilla Data Collective) | Read speech recordings in Ukrainian, contributed by Common Voice volunteers. | CC0 1.0 | Allowed |
| Google FLEURS (uk_ua) (opens in a new tab)Google | Read sentences from the FLoRes benchmark, locale uk_ua. | CC BY 4.0 | Allowed |
The free Ukrainian data listed here is read sentences from Common Voice and FLEURS; this dataset is spontaneous two-person conversation recorded in Ukraine, licensed for commercial training.
Licenses as published by each source, checked October 2026. Check the current terms before use.
FAQ
Frequently asked questions
What does the Ukrainian speech dataset include?
1,500 hours of spontaneous two-person conversations from 150 vetted native speakers recorded in Ukraine, delivered as dual-channel audio with time-aligned transcripts, speaker metadata (age, gender, region, device), and consent documentation.
What makes Ukrainian hard for speech recognition?
Ukrainian and Russian share many words but differ in sounds, grammar and vocabulary, and a lot of everyday speech in Ukraine mixes the two (surzhyk). A model has to tell them apart word by word, which is hard without native conversational data.
Is there free Ukrainian speech data?
Yes, Mozilla Common Voice Ukrainian and Google FLEURS are free for commercial use. This dataset is spontaneous two-person conversation recorded in Ukraine, with speaker metadata, one channel per speaker and signed commercial-use consent.
Can I use this Ukrainian dataset commercially?
Yes. The dataset is licensed for commercial use, including training ASR, TTS, and other voice-AI models. Every speaker has signed explicit commercial-use consent, and we provide the full consent chain for your legal review.
How much does the Ukrainian speech dataset cost?
Pricing is $85 per hour of audio. Volume discounts are available for full-dataset and multi-language purchases. Contact us for a quote.
Can I evaluate samples before buying?
Yes. Request samples with your company email, and we'll email you representative audio files and matching transcripts so your team can audit quality before committing.
$85/hr