---
license: apache-2.0
language:
- en
base_model:
- wespeaker/voxceleb_resnet34
pipeline_tag: audio-classification
tags:
- sherpa-onnx
- axera
- ax650
- axmodel
- wespeaker
- resnet34
- speaker-verification
- speaker-recognition
- pulsar2
---

# sherpa-onnx-wespeaker-resnet34-ax650

WeSpeaker ResNet34 speaker embedding model converted to AX650 AXMODEL for on-device speaker verification via sherpa-onnx.

## Model Details

- **Original Model**: [WeSpeaker voxceleb_resnet34](https://wespeaker-1256283475.cos.ap-shanghai.myqcloud.com/models/voxceleb/voxceleb_resnet34.onnx)
- **Architecture**: ResNet34 (CNN-based speaker embedding)
- **Task**: Speaker verification / speaker embedding extraction
- **Input**: 80-dim FBank features, up to 200 frames (~2s @ 16kHz)
- **Output**: 256-dim speaker embedding (L2-normalized)
- **Target Chip**: AX650 (NPU3)
- **Quantization**: U16 (MinMax calibration)

## Files

| File | Size | Description |
|------|------|-------------|
| `wespeaker-resnet34.axmodel` | 6.6 MB | AX650 speaker embedding model |

## Performance (AX650)

| Metric | Value |
|--------|-------|
| Cosine Similarity vs ONNX | 0.9973 |
| Max Absolute Error | 0.030 |
| MSE | 0.00011 |
| MACs | 4.5 G |
| ONNX Size (original) | 25 MB |
| AXMODEL Size | 6.6 MB |
| Compression Ratio | 3.8x |

## Usage with sherpa-onnx

```bash
./sherpa-onnx-offline-speaker-identification \
  --speaker-model=wespeaker-resnet34.axmodel \
  --provider=axera \
  test.wav
```

## Conversion Details

- **Pulsar2 Version**: 6.0 (48520c11)
- **Input Shape**: [1, 200, 80]
- **Calibration**: 10 random FBank samples

## License

Apache 2.0