Afridialect is a web platform and marketplace for creating and purchasing high-quality speech datasets in African local dialects.
# Afridialect.ai
> A web platform and marketplace for creating and purchasing high-quality speech datasets in African local dialects.
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## Overview
Afridialect enables contributors to upload, transcribe, and translate short audio clips of real speech in African local dialects — starting with **Kikuyu and Swahili** (Kenya). Every clip passes through a structured human-in-the-loop quality control pipeline before it is monetised. Contributors earn HBAR at each stage they complete. Buyers can purchase ML-ready dataset packages assembled on demand from IPFS.
Key capabilities:
- Contributors record and upload 30–40 second audio clips and earn HBAR for each pipeline stage they complete (upload, transcription, translation, QC review).
- A five-gate QC workflow moderates, transcribes, translates, and quality-checks all content before it is sold.
- After QC passes, audio, transcripts, and translations are permanently pinned to IPFS via Pinata, and Hedera HTS NFTs are minted to represent contribution rights.
- Buyers specify dataset constraints (dialect, speaker gender, age, duration, sample count), purchase in HBAR (displayed in USD), and receive a HuggingFace-compatible ZIP dataset built fresh from IPFS.
- A single atomic Hedera `BatchTransaction` handles NFT return, NFT burn, and HBAR distribution to all contributors simultaneously.
- Every contributor and buyer is automatically provisioned a Hedera account on signup. All on-chain transactions — NFT minting, HBAR payouts, and dataset purchases — are conducted through these platform-managed accounts. Users never handle wallet keys or HBAR directly. All account keys are generated and managed by Afridialect inside AWS KMS and never leave it.
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## Tech Stack
| Layer | Technology | Version |
|---|---|---|
| Framework | Next.js (App Router, Turbopack) | 16.1.6 |
| UI | React | 19.0.0 |
| Language | TypeScript (strict mode) | 5.6.3 |
| Styling | Tailwind CSS | 3.4.15 |
| Database & Auth | Supabase (PostgreSQL + …