Europe · Poland
Polish conversational speech dataset
1,000 hours of spontaneous Polish conversations recorded in Poland 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 | Polish |
|---|---|
| Recorded in | Poland |
| 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 Polish speech:
- Automatic speech recognition (ASR / STT)
- Text-to-speech & voice synthesis prosody
- Voice agents and IVR for Poland
- 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 Polish. Read more in our guide to conversational vs. scripted speech data.
Free samples
Audit the Polish 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 Polish speech data vs. this dataset
| Source | What it is | License | Commercial training |
|---|---|---|---|
| Multilingual LibriSpeech (MLS) Polish (opens in a new tab)Meta AI (via OpenSLR) | Polish read audiobooks from LibriVox with transcripts. | CC BY 4.0 | Allowed |
| VoxPopuli Polish (transcribed) (opens in a new tab)Meta AI | Transcribed Polish speeches from European Parliament event recordings, 2009 to 2020. | CC0 for VoxPopuli data; the raw audio falls under the European Parliament legal notice (reuse allowed if the entire item is reproduced and the source acknowledged) | Unclear |
| Mozilla Common Voice Polish (Scripted Speech) (opens in a new tab)Mozilla Common Voice (via Mozilla Data Collective) | Read speech recordings in Polish, contributed by Common Voice volunteers. | CC0 1.0 | Allowed |
| Google FLEURS (pl_pl) (opens in a new tab)Google | Read sentences from the FLoRes benchmark, locale pl_pl. | CC BY 4.0 | Allowed |
Free Polish data here is audiobooks, parliament speeches and read sentences; this dataset is spontaneous two-person conversation recorded in Poland, with dual-channel audio and a commercial license.
Licenses as published by each source, checked October 2026. Check the current terms before use.
FAQ
Frequently asked questions
What does the Polish speech dataset include?
1,000 hours of spontaneous two-person conversations from 100 vetted native speakers recorded in Poland, delivered as dual-channel audio with time-aligned transcripts, speaker metadata (age, gender, region, device), and consent documentation.
What makes Polish hard for speech recognition?
Polish packs dense consonant clusters ("chrząszcz", "źdźbło") and separates pairs like "sz" and "ś" or "cz" and "ć" that sound alike to untrained ears. Seven cases give every noun many forms, so the vocabulary a model must handle grows fast.
Is there free Polish speech data?
Yes, Multilingual LibriSpeech Polish, Mozilla Common Voice Polish and Google FLEURS are free for commercial use. VoxPopuli Polish has unclear terms. This dataset is spontaneous two-person conversation recorded in Poland, with speaker metadata, one channel per speaker and signed commercial-use consent.
Can I use this Polish 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 Polish 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