Automatic Speech Recognition
Transformers
Safetensors
Konkomba
wav2vec2-bert
speech
asr
african-languages
w2v-bert
khaya
Eval Results (legacy)
Instructions to use KhayaAI/w2v-bert-xon with libraries, inference providers, notebooks, and local apps. Follow these links to get started.
- Libraries
- Transformers
How to use KhayaAI/w2v-bert-xon with Transformers:
# Use a pipeline as a high-level helper from transformers import pipeline pipe = pipeline("automatic-speech-recognition", model="KhayaAI/w2v-bert-xon")# pip install -U transformers accelerate # Load model directly from transformers import AutoProcessor, AutoModelForCTC processor = AutoProcessor.from_pretrained("KhayaAI/w2v-bert-xon") model = AutoModelForCTC.from_pretrained("KhayaAI/w2v-bert-xon", device_map="auto") - Notebooks
- Google Colab
- Kaggle
Update README.md
Browse files
README.md
CHANGED
|
@@ -1,199 +1,157 @@
|
|
| 1 |
---
|
|
|
|
|
|
|
|
|
|
| 2 |
library_name: transformers
|
| 3 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 4 |
---
|
| 5 |
|
| 6 |
-
# Model Card for Model ID
|
| 7 |
|
| 8 |
-
|
| 9 |
|
| 10 |
|
|
|
|
|
|
|
| 11 |
|
| 12 |
-
## Model Details
|
| 13 |
|
| 14 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
| 15 |
|
| 16 |
-
<!-- Provide a longer summary of what this model is. -->
|
| 17 |
|
| 18 |
-
|
| 19 |
|
| 20 |
-
- **Developed by:** [More Information Needed]
|
| 21 |
-
- **Funded by [optional]:** [More Information Needed]
|
| 22 |
-
- **Shared by [optional]:** [More Information Needed]
|
| 23 |
-
- **Model type:** [More Information Needed]
|
| 24 |
-
- **Language(s) (NLP):** [More Information Needed]
|
| 25 |
-
- **License:** [More Information Needed]
|
| 26 |
-
- **Finetuned from model [optional]:** [More Information Needed]
|
| 27 |
|
| 28 |
-
|
|
|
|
|
|
|
| 29 |
|
| 30 |
-
<!-- Provide the basic links for the model. -->
|
| 31 |
|
| 32 |
-
|
| 33 |
-
-
|
| 34 |
-
|
| 35 |
|
| 36 |
-
## Uses
|
| 37 |
|
| 38 |
-
|
| 39 |
|
| 40 |
-
### Direct Use
|
| 41 |
|
| 42 |
-
|
|
|
|
|
|
|
|
|
|
| 43 |
|
| 44 |
-
[More Information Needed]
|
| 45 |
-
|
| 46 |
-
### Downstream Use [optional]
|
| 47 |
-
|
| 48 |
-
<!-- This section is for the model use when fine-tuned for a task, or when plugged into a larger ecosystem/app -->
|
| 49 |
-
|
| 50 |
-
[More Information Needed]
|
| 51 |
-
|
| 52 |
-
### Out-of-Scope Use
|
| 53 |
-
|
| 54 |
-
<!-- This section addresses misuse, malicious use, and uses that the model will not work well for. -->
|
| 55 |
-
|
| 56 |
-
[More Information Needed]
|
| 57 |
-
|
| 58 |
-
## Bias, Risks, and Limitations
|
| 59 |
-
|
| 60 |
-
<!-- This section is meant to convey both technical and sociotechnical limitations. -->
|
| 61 |
-
|
| 62 |
-
[More Information Needed]
|
| 63 |
-
|
| 64 |
-
### Recommendations
|
| 65 |
-
|
| 66 |
-
<!-- This section is meant to convey recommendations with respect to the bias, risk, and technical limitations. -->
|
| 67 |
-
|
| 68 |
-
Users (both direct and downstream) should be made aware of the risks, biases and limitations of the model. More information needed for further recommendations.
|
| 69 |
-
|
| 70 |
-
## How to Get Started with the Model
|
| 71 |
-
|
| 72 |
-
Use the code below to get started with the model.
|
| 73 |
-
|
| 74 |
-
[More Information Needed]
|
| 75 |
-
|
| 76 |
-
## Training Details
|
| 77 |
-
|
| 78 |
-
### Training Data
|
| 79 |
-
|
| 80 |
-
<!-- This should link to a Dataset Card, perhaps with a short stub of information on what the training data is all about as well as documentation related to data pre-processing or additional filtering. -->
|
| 81 |
-
|
| 82 |
-
[More Information Needed]
|
| 83 |
-
|
| 84 |
-
### Training Procedure
|
| 85 |
-
|
| 86 |
-
<!-- This relates heavily to the Technical Specifications. Content here should link to that section when it is relevant to the training procedure. -->
|
| 87 |
-
|
| 88 |
-
#### Preprocessing [optional]
|
| 89 |
-
|
| 90 |
-
[More Information Needed]
|
| 91 |
-
|
| 92 |
-
|
| 93 |
-
#### Training Hyperparameters
|
| 94 |
-
|
| 95 |
-
- **Training regime:** [More Information Needed] <!--fp32, fp16 mixed precision, bf16 mixed precision, bf16 non-mixed precision, fp16 non-mixed precision, fp8 mixed precision -->
|
| 96 |
-
|
| 97 |
-
#### Speeds, Sizes, Times [optional]
|
| 98 |
-
|
| 99 |
-
<!-- This section provides information about throughput, start/end time, checkpoint size if relevant, etc. -->
|
| 100 |
-
|
| 101 |
-
[More Information Needed]
|
| 102 |
|
| 103 |
## Evaluation
|
| 104 |
|
| 105 |
-
<!-- This section describes the evaluation protocols and provides the results. -->
|
| 106 |
-
|
| 107 |
-
### Testing Data, Factors & Metrics
|
| 108 |
-
|
| 109 |
-
#### Testing Data
|
| 110 |
|
| 111 |
-
|
|
|
|
|
|
|
| 112 |
|
| 113 |
-
[More Information Needed]
|
| 114 |
|
| 115 |
-
|
|
|
|
| 116 |
|
| 117 |
-
<!-- These are the things the evaluation is disaggregating by, e.g., subpopulations or domains. -->
|
| 118 |
|
| 119 |
-
|
| 120 |
|
| 121 |
-
#### Metrics
|
| 122 |
|
| 123 |
-
|
|
|
|
|
|
|
| 124 |
|
| 125 |
-
[More Information Needed]
|
| 126 |
|
| 127 |
-
|
|
|
|
|
|
|
| 128 |
|
| 129 |
-
[More Information Needed]
|
| 130 |
|
| 131 |
-
|
|
|
|
|
|
|
|
|
|
| 132 |
|
| 133 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 134 |
|
| 135 |
-
## Model Examination [optional]
|
| 136 |
|
| 137 |
-
|
| 138 |
|
| 139 |
-
[More Information Needed]
|
| 140 |
|
| 141 |
-
|
|
|
|
|
|
|
|
|
|
| 142 |
|
| 143 |
-
<!-- Total emissions (in grams of CO2eq) and additional considerations, such as electricity usage, go here. Edit the suggested text below accordingly -->
|
| 144 |
|
| 145 |
-
|
| 146 |
|
| 147 |
-
- **Hardware Type:** [More Information Needed]
|
| 148 |
-
- **Hours used:** [More Information Needed]
|
| 149 |
-
- **Cloud Provider:** [More Information Needed]
|
| 150 |
-
- **Compute Region:** [More Information Needed]
|
| 151 |
-
- **Carbon Emitted:** [More Information Needed]
|
| 152 |
|
| 153 |
-
|
| 154 |
|
| 155 |
-
### Model Architecture and Objective
|
| 156 |
|
| 157 |
-
|
| 158 |
|
| 159 |
-
### Compute Infrastructure
|
| 160 |
|
| 161 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
| 162 |
|
| 163 |
-
#### Hardware
|
| 164 |
|
| 165 |
-
|
|
|
|
|
|
|
| 166 |
|
| 167 |
-
#### Software
|
| 168 |
|
| 169 |
-
|
| 170 |
|
| 171 |
-
## Citation [optional]
|
| 172 |
|
| 173 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 174 |
|
| 175 |
-
**BibTeX:**
|
| 176 |
|
| 177 |
-
|
| 178 |
|
| 179 |
-
**APA:**
|
| 180 |
|
| 181 |
-
|
| 182 |
|
| 183 |
-
## Glossary [optional]
|
| 184 |
|
| 185 |
-
<!-- If relevant, include terms and calculations in this section that can help readers understand the model or model card. -->
|
| 186 |
|
| 187 |
-
[More Information Needed]
|
| 188 |
|
| 189 |
-
|
| 190 |
-
|
| 191 |
-
[More Information Needed]
|
| 192 |
-
|
| 193 |
-
## Model Card Authors [optional]
|
| 194 |
-
|
| 195 |
-
[More Information Needed]
|
| 196 |
|
| 197 |
-
## Model Card Contact
|
| 198 |
|
| 199 |
-
[More Information Needed]
|
|
|
|
| 1 |
---
|
| 2 |
+
language:
|
| 3 |
+
- xon
|
| 4 |
+
license: apache-2.0
|
| 5 |
library_name: transformers
|
| 6 |
+
pipeline_tag: automatic-speech-recognition
|
| 7 |
+
tags:
|
| 8 |
+
- speech
|
| 9 |
+
- asr
|
| 10 |
+
- african-languages
|
| 11 |
+
- w2v-bert
|
| 12 |
+
- khaya
|
| 13 |
+
- xon
|
| 14 |
+
metrics:
|
| 15 |
+
- wer
|
| 16 |
+
model-index:
|
| 17 |
+
- name: w2v-bert-xon
|
| 18 |
+
results:
|
| 19 |
+
- task:
|
| 20 |
+
type: automatic-speech-recognition
|
| 21 |
+
name: Automatic Speech Recognition
|
| 22 |
+
metrics:
|
| 23 |
+
- type: wer
|
| 24 |
+
value: 15.7
|
| 25 |
+
name: WER
|
| 26 |
---
|
| 27 |
|
|
|
|
| 28 |
|
| 29 |
+
# w2v-bert-xon — Konkomba (Likpakpaanl) ASR
|
| 30 |
|
| 31 |
|
| 32 |
+
**DONDO** (Decolonial Oral Neural Dialect Ontology) open speech-recognition base model for **Konkomba (Likpakpaanl)** (Ghana).
|
| 33 |
+
Fine-tuned from the **w2v-BERT 2.0** self-supervised speech encoder.
|
| 34 |
|
|
|
|
| 35 |
|
| 36 |
+
- **Language:** Konkomba (Likpakpaanl) (`xon`)
|
| 37 |
+
- **Task:** Automatic Speech Recognition (CTC)
|
| 38 |
+
- **Backbone:** w2v-BERT 2.0
|
| 39 |
+
- **License:** Apache-2.0 (attribution only; commercial use permitted)
|
| 40 |
+
- **Part of:** the DONDO family — <https://huggingface.co/KhayaAI>
|
| 41 |
|
|
|
|
| 42 |
|
| 43 |
+
## Intended use
|
| 44 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 45 |
|
| 46 |
+
A **base model** for Konkomba (Likpakpaanl) ASR. Use it directly to transcribe read or relatively
|
| 47 |
+
clean speech, or as an initialisation to **fine-tune on your own in-domain data**
|
| 48 |
+
(conversational, broadcast, clinical, etc.) with comparatively little labelled audio.
|
| 49 |
|
|
|
|
| 50 |
|
| 51 |
+
DONDO is also intended as an **open test bed**: a shared, reproducible model on
|
| 52 |
+
which new low-resource speech techniques can be demonstrated for the benefit of
|
| 53 |
+
all. Aligned research groups are welcome to build on it and collaborate.
|
| 54 |
|
|
|
|
| 55 |
|
| 56 |
+
## Training data
|
| 57 |
|
|
|
|
| 58 |
|
| 59 |
+
Primarily read speech derived from **religious texts** paired with verified
|
| 60 |
+
transcripts in the standard orthography. Such data is license-clear, exists for
|
| 61 |
+
many otherwise under-resourced languages, and is orthographically consistent. Its
|
| 62 |
+
main limitation is domain narrowness, which is why this is released as a base model.
|
| 63 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 64 |
|
| 65 |
## Evaluation
|
| 66 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 67 |
|
| 68 |
+
| Metric | Value |
|
| 69 |
+
|---|---|
|
| 70 |
+
| WER (in-domain test) | **15.7%** |
|
| 71 |
|
|
|
|
| 72 |
|
| 73 |
+
WER is computed on in-domain test material and should not be read as a guarantee
|
| 74 |
+
for other domains.
|
| 75 |
|
|
|
|
| 76 |
|
| 77 |
+
## How to use
|
| 78 |
|
|
|
|
| 79 |
|
| 80 |
+
```python
|
| 81 |
+
import torch, torchaudio
|
| 82 |
+
from transformers import AutoProcessor, AutoModelForCTC
|
| 83 |
|
|
|
|
| 84 |
|
| 85 |
+
model_id = "KhayaAI/w2v-bert-xon"
|
| 86 |
+
processor = AutoProcessor.from_pretrained(model_id)
|
| 87 |
+
model = AutoModelForCTC.from_pretrained(model_id)
|
| 88 |
|
|
|
|
| 89 |
|
| 90 |
+
speech, sr = torchaudio.load("audio.wav")
|
| 91 |
+
if sr != 16000:
|
| 92 |
+
speech = torchaudio.functional.resample(speech, sr, 16000)
|
| 93 |
+
inputs = processor(speech.squeeze().numpy(), sampling_rate=16000, return_tensors="pt")
|
| 94 |
|
| 95 |
|
| 96 |
+
with torch.no_grad():
|
| 97 |
+
logits = model(**inputs).logits
|
| 98 |
+
pred_ids = torch.argmax(logits, dim=-1)
|
| 99 |
+
print(processor.batch_decode(pred_ids)[0])
|
| 100 |
+
```
|
| 101 |
|
|
|
|
| 102 |
|
| 103 |
+
## Limitations
|
| 104 |
|
|
|
|
| 105 |
|
| 106 |
+
Trained largely on read religious speech, so the model may underperform on
|
| 107 |
+
spontaneous, code-switched or noisy audio until fine-tuned. Orthographic
|
| 108 |
+
conventions vary across communities; evaluation for the smallest languages rests
|
| 109 |
+
on limited test sets.
|
| 110 |
|
|
|
|
| 111 |
|
| 112 |
+
## License
|
| 113 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 114 |
|
| 115 |
+
Released under the **Apache-2.0** license. You are free to use, modify, redistribute and build upon this model, **including for commercial purposes**. The only substantive requirement is **attribution**.
|
| 116 |
|
|
|
|
| 117 |
|
| 118 |
+
## Professional services & hosted APIs
|
| 119 |
|
|
|
|
| 120 |
|
| 121 |
+
This model is free to use under Apache-2.0. If your team would like help
|
| 122 |
+
**deploying it offline on your own infrastructure and data**, Khaya AI offers
|
| 123 |
+
professional services (integration, fine-tuning and on-premises deployment). For
|
| 124 |
+
ready-to-use and more advanced ASR, including **APIs** for interested parties,
|
| 125 |
+
see Khaya Studio.
|
| 126 |
|
|
|
|
| 127 |
|
| 128 |
+
- Khaya AI — <https://khaya.ai>
|
| 129 |
+
- Khaya Studio — <https://studio.khaya.ai>
|
| 130 |
+
- Khaya Studio ASR — <https://studio.khaya.ai/asr>
|
| 131 |
|
|
|
|
| 132 |
|
| 133 |
+
## Citation
|
| 134 |
|
|
|
|
| 135 |
|
| 136 |
+
```bibtex
|
| 137 |
+
@techreport{dondo2026,
|
| 138 |
+
title = {DONDO: Open w2v-BERT Speech Recognition Base Models for African Languages},
|
| 139 |
+
author = {{Khaya AI}},
|
| 140 |
+
year = {2026},
|
| 141 |
+
institution = {Khaya AI},
|
| 142 |
+
note = {Decolonial Oral Neural Dialect Ontology. Funded by the Huniki Federation. https://huggingface.co/KhayaAI}
|
| 143 |
+
}
|
| 144 |
+
```
|
| 145 |
|
|
|
|
| 146 |
|
| 147 |
+
## Acknowledgements
|
| 148 |
|
|
|
|
| 149 |
|
| 150 |
+
Funded by the **Huniki Federation**. We thank **Ghana-NLP** and **Algorine Research** for their support with benchmarking, testing and data, and **Hugging Face** for compute credits. We also thank the language communities and data contributors whose recordings and transcriptions made this work possible.
|
| 151 |
|
|
|
|
| 152 |
|
|
|
|
| 153 |
|
|
|
|
| 154 |
|
| 155 |
+
---
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 156 |
|
|
|
|
| 157 |
|
|
|