Shipping todayTwi (Akan) Speech Dataset
Natural, code-switched Akan Twi speech for Ghanaian voice and ASR systems.
Ghana · ISO 639: ak
Listen to a sample
What you get with the Twi dataset
Part of our speaker-verified corpus across Luganda, Ewe, Fulfulde, Hausa, Wolof, Twi & Yoruba fully annotated and growing.
Built for teams shipping Twi voice products
Twi ASR training
Fine-tune Whisper, MMS or your own acoustic model on verified native Twi speech instead of scraped audio.
Local-language IVR
Launch Twi voice menus for customers in Ghana in weeks, not months.
Voice bots & assistants
Train conversational AI that understands natural Twi, including the code-switching real users do.
How the data is made
Image-prompted elicitation
Speakers describe images rather than read scripts, capturing natural speech and code-switching.
AI quality filtering at capture
Noisy audio is discarded automatically before it reaches human reviewers.
>80% inter-annotator agreement
Every annotation is cross-checked against our linguistic quality standard.
Fair-Trade sourcing
Native speakers are paid fairly per completed mission, with a provenance trail your compliance team can audit.
On Wolof sentiment, data validated through our pipeline reaches 90.0% F1, twice the best frontier LLM we tested.
See the benchmarkTwi dataset FAQ
Is the Twi speech dataset licensed for commercial use?
Yes. Every Twi dataset ships with a commercial license and an SLA: guaranteed delivery windows, defined annotation accuracy, free re-delivery on any QA failure, and a provenance trail for IP, data-protection and AI Act reviews.
What format is the audio delivered in?
16 kHz WAV audio with timestamped transcripts in JSON, delivered via API or S3 straight into your training pipeline. We can adapt to your schema.
How many hours of Twi audio are available?
The Twi corpus is growing continuously. Volume, speaker mix and domains are scoped to your use case on a short call, and we can run a collection mission to top up anything specific.
Can you fine-tune or benchmark a model on Twi for us?
Yes. Beyond licensing data, we fine-tune Whisper or MMS on your target languages and benchmark the result against your current baselines.
Can I hear a sample before committing?
Yes. Request the dataset or book a call and we will share representative samples and a data card before any contract.
Other shipping datasets
- Luganda Speech Dataset
- Ewe Speech Dataset
- Fulfulde (Fula) Speech Dataset
- Hausa Speech Dataset
- Wolof Speech Dataset
- Yoruba Speech Dataset
- Browse the full catalogue
Need another African language? We run on-demand collection missions with our native-speaker network.