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. This repository contains pre-exported model files optimized for Qualcomm® devices. You can use the Qualcomm® AI Hub Models library to export with custom configurations. More details on model performance across various devices, can be found here.

Qualcomm AI Hub Models uses Qualcomm AI Hub Workbench to compile, profile, and evaluate this model. Sign up 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 2.45, ONNX Runtime 1.27.1	Download
QNN_DLC	float	Universal	QAIRT 2.45	Download
TFLITE	float	Universal	QAIRT 2.45	Download

For more device-specific assets and performance metrics, visit FunASR-Conformer-EN on Qualcomm® AI Hub.

Option 2: Export with Custom Configurations

Use the Qualcomm® AI Hub Models 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 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® X2 Elite	24.852 ms	9 - 9 MB	NPU
FunASR-Conformer-EN	ONNX	float	Snapdragon® X Elite	50.732 ms	326 - 326 MB	NPU
FunASR-Conformer-EN	ONNX	float	Snapdragon® 8 Gen 3 Mobile	33.644 ms	7 - 1060 MB	NPU
FunASR-Conformer-EN	ONNX	float	Snapdragon® 8 Gen 1 Mobile	69.257 ms	6 - 1029 MB	NPU
FunASR-Conformer-EN	ONNX	float	Qualcomm® Dragonwing™ IQ-8275	54.153 ms	6 - 9 MB	NPU
FunASR-Conformer-EN	ONNX	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	47.515 ms	0 - 387 MB	NPU
FunASR-Conformer-EN	ONNX	float	Qualcomm® QCS8450	69.257 ms	6 - 1029 MB	NPU
FunASR-Conformer-EN	ONNX	float	Qualcomm® Dragonwing™ IQ-9075	54.526 ms	6 - 9 MB	NPU
FunASR-Conformer-EN	ONNX	float	Qualcomm® Dragonwing™ IQ-X7181	50.732 ms	326 - 326 MB	NPU
FunASR-Conformer-EN	ONNX	float	Qualcomm® Dragonwing™ Q-8750	24.062 ms	7 - 722 MB	NPU
FunASR-Conformer-EN	ONNX	float	Snapdragon® 8 Elite Mobile	24.062 ms	7 - 722 MB	NPU
FunASR-Conformer-EN	ONNX	float	Snapdragon® 8 Elite Gen 5 Mobile	19.34 ms	6 - 704 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Snapdragon® X2 Elite	23.738 ms	0 - 0 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Snapdragon® X Elite	47.954 ms	0 - 0 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Snapdragon® 8 Gen 3 Mobile	31.812 ms	0 - 953 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Snapdragon® 8 Gen 1 Mobile	65.029 ms	1 - 922 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-8275	112.899 ms	1 - 654 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	44.742 ms	1 - 756 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® SA8775P	51.223 ms	1 - 653 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® SA8650P	51.223 ms	1 - 653 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® SA8255P	51.223 ms	1 - 653 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® QCS8450	65.029 ms	1 - 922 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-9075	67.266 ms	2 - 7 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-X7181	47.954 ms	0 - 0 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® Dragonwing™ Q-8750	23.406 ms	0 - 652 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® SA7255P	112.899 ms	1 - 654 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Qualcomm® SA8295P	55.177 ms	1 - 660 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Snapdragon® 8 Elite Mobile	23.406 ms	0 - 652 MB	NPU
FunASR-Conformer-EN	QNN_DLC	float	Snapdragon® 8 Elite Gen 5 Mobile	18.134 ms	0 - 609 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Snapdragon® 8 Gen 3 Mobile	32.051 ms	3 - 1029 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Snapdragon® 8 Gen 1 Mobile	65.923 ms	4 - 984 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® Dragonwing™ IQ-8275	51.053 ms	3 - 335 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® Dragonwing™ IQ-8275	112.966 ms	3 - 683 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	44.304 ms	3 - 7 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® SA8775P	51.703 ms	3 - 684 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® SA8650P	51.703 ms	3 - 684 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® SA8255P	51.703 ms	3 - 684 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® QCS8450	65.923 ms	4 - 984 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® Dragonwing™ IQ-9075	52.859 ms	3 - 335 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® Dragonwing™ Q-8750	23.368 ms	3 - 690 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® SA7255P	112.966 ms	3 - 683 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Qualcomm® SA8295P	55.196 ms	3 - 689 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Snapdragon® 8 Elite Mobile	23.368 ms	3 - 690 MB	NPU
FunASR-Conformer-EN	TFLITE	float	Snapdragon® 8 Elite Gen 5 Mobile	18.073 ms	3 - 644 MB	NPU

License

• The license for the original implementation of FunASR-Conformer-EN can be found here.

References

• Conformer: Convolution-augmented Transformer for Speech Recognition
• Source Model Implementation

Community

• Join our AI Hub Slack community to collaborate, post questions and learn more about on-device AI.
• For questions or feedback please reach out to us.