Europe · Norway
Norwegian conversational speech dataset
500 hours of spontaneous Norwegian conversations recorded in Norway across 50 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 | Norwegian |
|---|---|
| Recorded in | Norway |
| Speech type | Spontaneous two-person conversations |
| Volume | 500 hours |
| Speakers | 50 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 | $95 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 Norwegian speech:
- Automatic speech recognition (ASR / STT)
- Text-to-speech & voice synthesis prosody
- Voice agents and IVR for Norway
- 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 Norwegian. Read more in our guide to conversational vs. scripted speech data.
Free samples
Audit the Norwegian 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 Norwegian speech data vs. this dataset
| Source | What it is | License | Commercial training |
|---|---|---|---|
| NST Norwegian ASR Database (16 kHz), reorganized (opens in a new tab)Språkbanken, National Library of Norway | Manuscript-read Norwegian recorded with close and distant microphones, created by Nordic Language Technology for speech recognition and dictation. | CC0 1.0 | Allowed |
| Norwegian Parliamentary Speech Corpus (NPSC) 2.0 (opens in a new tab)Språkbanken, National Library of Norway | Stortinget plenary meetings from 2017 and 2018, transcribed in Bokmål or Nynorsk, with speaker metadata; 140 hours from 267 speakers. | CC0 1.0 | Allowed |
| Mozilla Common Voice Scripted Speech 27.0 (opens in a new tab)Mozilla Foundation (Mozilla Data Collective) | Read Norwegian Bokmål sentences with text transcripts, 2.6 hours recorded; Nynorsk is a separate Common Voice dataset. | CC0 1.0 | Allowed |
| FLEURS (opens in a new tab)Google | Read sentences from the FLoRes translation benchmark, recorded for 102 languages; training sets hold around 10 hours per language (Norwegian Bokmål). | CC BY 4.0 | Allowed |
NST is read speech with two microphones on one speaker and NPSC is parliamentary; ours is spontaneous two-person conversation recorded in Norway, one channel per speaker.
Licenses as published by each source, checked October 2026. Check the current terms before use.
FAQ
Frequently asked questions
What does the Norwegian speech dataset include?
500 hours of spontaneous two-person conversations from 50 vetted native speakers recorded in Norway, delivered as dual-channel audio with time-aligned transcripts, speaker metadata (age, gender, region, device), and consent documentation.
What makes Norwegian hard for speech recognition?
Norway has no standard spoken Norwegian. People speak their local dialect in everyday life and write in Bokmål or Nynorsk, so the gap between what's said and what's written is large. Pitch accent and regional pronunciation make native conversational data essential.
Is there free Norwegian speech data?
Yes, the NST Norwegian ASR Database, the Norwegian Parliamentary Speech Corpus, Mozilla Common Voice and FLEURS are free for commercial use. This dataset is spontaneous two-person conversation recorded in Norway, with speaker metadata, one channel per speaker and signed commercial-use consent.
Can I use this Norwegian 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 Norwegian speech dataset cost?
Pricing is $95 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