Europe · Russia
Russian conversational speech dataset
1,000 hours of spontaneous Russian conversations recorded in Russia across 100 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 | Russian |
|---|---|
| Recorded in | Russia |
| Speech type | Spontaneous two-person conversations |
| Volume | 1,000 hours |
| Speakers | 100 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 Russian speech:
- Automatic speech recognition (ASR / STT)
- Text-to-speech & voice synthesis prosody
- Voice agents and IVR for Russia
- 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 Russian. Read more in our guide to conversational vs. scripted speech data.
Free samples
Audit the Russian 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 Russian speech data vs. this dataset
| Source | What it is | License | Commercial training |
|---|---|---|---|
| Golos (opens in a new tab)SberDevices (Sber) | Template-generated Russian voice-assistant queries voiced by crowd workers, plus far-field recordings on a smart screen in a studio; no speaker metadata. | Public license with attribution and conditions reserved (Sber's reworking of CC BY-SA 4.0) | Allowed, with restrictions |
| Open STT (opens in a new tab)Open STT authors (snakers4) | Russian speech from radio, public speech, audiobooks, YouTube, phone calls and lectures, much of it auto-aligned; the repository is archived. | CC BY-NC 4.0; commercial use only after agreement with the authors | Not allowed |
| Mozilla Common Voice Russian (Scripted and Spontaneous Speech) (opens in a new tab)Mozilla Common Voice (via Mozilla Data Collective) | Volunteers read Russian sentences aloud; a separate Spontaneous Speech release has unscripted answers to questions. | CC0 1.0 | Allowed |
| Google FLEURS (ru_ru) (opens in a new tab)Google | Read sentences from the FLoRes benchmark, locale ru_ru. | CC BY 4.0 | Allowed |
Golos is scripted voice-assistant queries without speaker metadata; Open STT needs a separate commercial agreement. This dataset is spontaneous two-person conversation recorded in Russia, with speaker metadata.
Licenses as published by each source, checked October 2026. Check the current terms before use.
FAQ
Frequently asked questions
What does the Russian speech dataset include?
1,000 hours of spontaneous two-person conversations from 100 vetted native speakers recorded in Russia, delivered as dual-channel audio with time-aligned transcripts, speaker metadata (age, gender, region, device), and consent documentation.
What makes Russian hard for speech recognition?
Russian stress is free and moves between forms of the same word, and an unstressed "o" sounds close to "a", so spelling and sound drift apart. Rich inflection multiplies word forms, and casual speech shortens words a lot: "сейчас" often comes out as "щас".
Is there free Russian speech data?
Yes, Mozilla Common Voice Russian and Google FLEURS are free for commercial use, and Golos is too, with restrictions. Open STT is non-commercial only. This dataset is spontaneous two-person conversation recorded in Russia, with speaker metadata, one channel per speaker and signed commercial-use consent.
Can I use this Russian 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 Russian 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