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library_name: pytorch
license: mit
tags:
- real_time
- android
pipeline_tag: automatic-speech-recognition
---
# FunASR-Conformer-EN: Optimized for Qualcomm Devices
FunASR Conformer-EN is a large-scale English ASR model from Alibaba DAMO Academy, trained on ~50,000 hours of English speech. It uses a 32-block Conformer encoder(512 hidden dim, 16 attention heads) with a CTC head for decoding. The model accepts raw 16kHz audio and outputs transcribed text via CTC greedy decoding.
This is based on the implementation of FunASR-Conformer-EN found [here](https://huggingface.co/funasr/conformer-en).
This repository contains pre-exported model files optimized for Qualcomm® devices. You can use the [Qualcomm® AI Hub Models](https://github.com/qualcomm/ai-hub-models/blob/v0.64.0/src/qai_hub_models/models/funasr_conformer_en) library to export with custom configurations. More details on model performance across various devices, can be found [here](#performance-summary).
Qualcomm AI Hub Models uses [Qualcomm AI Hub Workbench](https://workbench.aihub.qualcomm.com) to compile, profile, and evaluate this model. [Sign up](https://myaccount.qualcomm.com/signup) to run these models on a hosted Qualcomm® device.
## Getting Started
There are two ways to deploy this model on your device:
### Option 1: Download Pre-Exported Models
Below are pre-exported model assets ready for deployment.
| Runtime | Precision | Chipset | SDK Versions | Download |
|---|---|---|---|---|
| ONNX | float | Universal | QAIRT 2.50, ONNX Runtime 1.30.0 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/funasr_conformer_en/releases/v0.64.0/funasr_conformer_en-onnx-float.zip)
| QNN_DLC | float | Universal | QAIRT 2.50 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/funasr_conformer_en/releases/v0.64.0/funasr_conformer_en-qnn_dlc-float.zip)
| TFLITE | float | Universal | QAIRT 2.50 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/funasr_conformer_en/releases/v0.64.0/funasr_conformer_en-tflite-float.zip)
For more device-specific assets and performance metrics, visit **[FunASR-Conformer-EN on Qualcomm® AI Hub](https://aihub.qualcomm.com/models/funasr_conformer_en)**.
### Option 2: Export with Custom Configurations
Use the [Qualcomm® AI Hub Models](https://github.com/qualcomm/ai-hub-models/blob/v0.64.0/src/qai_hub_models/models/funasr_conformer_en) Python library to compile and export the model with your own:
- Custom weights (e.g., fine-tuned checkpoints)
- Custom input shapes
- Target device and runtime configurations
This option is ideal if you need to customize the model beyond the default configuration provided here.
See our repository for [FunASR-Conformer-EN on GitHub](https://github.com/qualcomm/ai-hub-models/blob/v0.64.0/src/qai_hub_models/models/funasr_conformer_en) for usage instructions.
## Model Details
**Model Type:** Model_use_case.speech_recognition
**Model Stats:**
- Input resolution: 1x160000 (10s at 16kHz)
- Model checkpoint: funasr/conformer-en
- Model size (float): ~840 MB
- Number of parameters: 220M
## Performance Summary
| Model | Runtime | Precision | Chipset | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit
|---|---|---|---|---|---|---
| FunASR-Conformer-EN | ONNX | float | Snapdragon® 8 Elite Gen 5 For Galaxy Mobile | 17.511 ms | 7 - 665 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Snapdragon® 8 Elite For Galaxy Mobile | 22.422 ms | 7 - 640 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Snapdragon® X2 Elite | 23.178 ms | 9 - 9 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Snapdragon® X Elite | 44.406 ms | 325 - 325 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Snapdragon® 8 Gen 3 Mobile | 30.573 ms | 3 - 978 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Snapdragon® 8 Gen 1 Mobile | 57.25 ms | 6 - 996 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Qualcomm® Dragonwing™ IQ-8275 | 48.247 ms | 5 - 10 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 40.58 ms | 0 - 387 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Qualcomm® QCS8450 | 57.25 ms | 6 - 996 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Qualcomm® Dragonwing™ IQ-9075 | 49.793 ms | 7 - 11 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Qualcomm® Dragonwing™ IQ-X7181 | 44.406 ms | 325 - 325 MB | NPU
| FunASR-Conformer-EN | ONNX | float | Qualcomm® Dragonwing™ Q-8750 | 22.422 ms | 7 - 640 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Snapdragon® 8 Elite Gen 5 For Galaxy Mobile | 18.032 ms | 0 - 595 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Snapdragon® 8 Elite For Galaxy Mobile | 22.902 ms | 0 - 591 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Snapdragon® X2 Elite | 24.057 ms | 0 - 0 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Snapdragon® X Elite | 44.866 ms | 0 - 0 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Snapdragon® 8 Gen 3 Mobile | 30.241 ms | 0 - 891 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Snapdragon® 8 Gen 1 Mobile | 57.241 ms | 0 - 904 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® Dragonwing™ IQ-8275 | 48.488 ms | 0 - 6 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 41.729 ms | 1 - 7 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® SA8775P | 47.827 ms | 1 - 593 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® SA8650P | 47.827 ms | 1 - 593 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® SA8255P | 47.827 ms | 1 - 593 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® QCS8450 | 57.241 ms | 0 - 904 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® Dragonwing™ IQ-9075 | 49.666 ms | 0 - 6 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® Dragonwing™ IQ-X7181 | 44.866 ms | 0 - 0 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® Dragonwing™ Q-8750 | 22.902 ms | 0 - 591 MB | NPU
| FunASR-Conformer-EN | QNN_DLC | float | Qualcomm® SA8295P | 54.375 ms | 1 - 595 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Snapdragon® 8 Elite Gen 5 For Galaxy Mobile | 18.067 ms | 3 - 624 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Snapdragon® 8 Elite For Galaxy Mobile | 22.874 ms | 3 - 619 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Snapdragon® 8 Gen 3 Mobile | 30.221 ms | 0 - 955 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Snapdragon® 8 Gen 1 Mobile | 57.359 ms | 3 - 961 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® Dragonwing™ IQ-8275 | 48.261 ms | 3 - 335 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 41.431 ms | 3 - 8 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® SA8775P | 48.047 ms | 3 - 621 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® SA8650P | 48.047 ms | 3 - 621 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® SA8255P | 48.047 ms | 3 - 621 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® QCS8450 | 57.359 ms | 3 - 961 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® Dragonwing™ IQ-9075 | 48.876 ms | 3 - 335 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® Dragonwing™ Q-8750 | 22.874 ms | 3 - 619 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® SA7255P | 106.572 ms | 3 - 621 MB | NPU
| FunASR-Conformer-EN | TFLITE | float | Qualcomm® SA8295P | 54.635 ms | 3 - 614 MB | NPU
## License
* The license for the original implementation of FunASR-Conformer-EN can be found
[here](https://github.com/modelscope/FunASR?tab=MIT-1-ov-file).
## References
* [Conformer: Convolution-augmented Transformer for Speech Recognition](https://arxiv.org/abs/2005.08100)
* [Source Model Implementation](https://huggingface.co/funasr/conformer-en)
## Community
* Join [our AI Hub Slack community](https://aihub.qualcomm.com/community/slack) to collaborate, post questions and learn more about on-device AI.
* For questions or feedback please [reach out to us](mailto:ai-hub-support@qti.qualcomm.com).
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