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teckedd/
gha-whisper-small-twi-en-balanced-v7-lite-frozen

Name: gha-whisper-small-twi-en-balanced-v7-lite-frozen
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teckedd/gha-whisper-small-twi-en-balanced-v7-lite-frozen

Frozen-encoder balanced Twi/Akan + English-retention Whisper small proof checkpoint for Ghana Health AI. Validation WER 53.83% on the capped Waxal validation subset; not a production promotion candidate.

Base model: openai/whisper-small
Task: automatic-speech-recognition
Languages: tw, ak, en
Card generated: 2026-08-09 (UTC)
Product: ghanahealth.serendepify.com

Not a medical device. Outputs support community health guidance only.

Metrics

Metric	Value
`wer`	0.5383
`cer`	0.2218

Training data

google/WaxalNLP (aka_asr)
fsicoli/common_voice_22_0 (tw)
fsicoli/common_voice_22_0 (en)
ghananlpcommunity/twi-speech-text-multispeaker-16k (default)

Intended use

In-product ASR / TTS / chat for Twi (Akan) and English health conversations in Ghana.
Research on low-resource Ghanaian language speech and health dialogue.

Out of scope

Clinical diagnosis or autonomous medical decisions.
Claiming near-native quality without reporting held-out WER/CER or human A/B scores.

How to load

python

from transformers import pipeline  # or AutoModel + processor per task
# repo: teckedd/gha-whisper-small-twi-en-balanced-v7-lite-frozen

Citation

If you use this checkpoint, please credit Ghana Health AI / Serendepify and the upstream base model authors plus any listed datasets.