---
library_name: pytorch
license: other
tags:
- foundation
- android
pipeline_tag: automatic-speech-recognition

---

![](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/web-assets/model_demo.png)

# Zipformer: Optimized for Qualcomm Devices

Zipformer streaming ASR (Automatic Speech Recognition) model is a state-of-the-art system designed for transcribing spoken language into written text streamingly. This model is based on the transformer architecture and has been optimized for edge inference by replacing linear layers with convolutional (conv) layers. It exhibits robust performance in realistic, noisy environments, making it highly reliable for real-world applications. Specifically, it excels in long-form transcription, capable of accurately transcribing audios. Time to the first token is the encoder's latency, while time to each additional token is joiner's latency, where we assume a max decoded length specified below.

This is based on the implementation of Zipformer found [here](https://github.com/k2-fsa/icefall).
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/main/src/qai_hub_models/models/zipformer) 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 |
|---|---|---|---|---|
| PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_8_elite_gen5.zip)
| PRECOMPILED_QNN_ONNX | float | Snapdragon® X2 Elite | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_x2_elite.zip)
| PRECOMPILED_QNN_ONNX | float | Snapdragon® X Elite | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_x_elite.zip)
| PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 3 Mobile | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_8gen3.zip)
| PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS8550 (Proxy) | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-float-qualcomm_qcs8550_proxy.zip)
| PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite For Galaxy Mobile | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-float-qualcomm_snapdragon_8_elite_for_galaxy.zip)
| PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS9075 | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-float-qualcomm_qcs9075.zip)
| PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Elite Gen 5 Mobile | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-mixed-qualcomm_snapdragon_8_elite_gen5.zip)
| PRECOMPILED_QNN_ONNX | mixed | Snapdragon® X2 Elite | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-mixed-qualcomm_snapdragon_x2_elite.zip)
| PRECOMPILED_QNN_ONNX | mixed | Snapdragon® X Elite | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-mixed-qualcomm_snapdragon_x_elite.zip)
| PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Gen 3 Mobile | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-mixed-qualcomm_snapdragon_8gen3.zip)
| PRECOMPILED_QNN_ONNX | mixed | Qualcomm® QCS8550 (Proxy) | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-mixed-qualcomm_qcs8550_proxy.zip)
| PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Elite For Galaxy Mobile | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-mixed-qualcomm_snapdragon_8_elite_for_galaxy.zip)
| PRECOMPILED_QNN_ONNX | mixed | Qualcomm® QCS9075 | QAIRT 2.42, ONNX Runtime 1.24.3 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-precompiled_qnn_onnx-mixed-qualcomm_qcs9075.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Gen 5 Mobile | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_snapdragon_8_elite_gen5.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® X2 Elite | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_snapdragon_x2_elite.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® X Elite | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_snapdragon_x_elite.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 3 Mobile | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_snapdragon_8gen3.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® QCS8550 (Proxy) | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_qcs8550_proxy.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® SA8775P | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_sa8775p.zip)
| QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite For Galaxy Mobile | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_snapdragon_8_elite_for_galaxy.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® SA7255P | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_sa7255p.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® SA8295P | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_sa8295p.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® QCS9075 | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_qcs9075.zip)
| QNN_CONTEXT_BINARY | float | Qualcomm® QCS8450 (Proxy) | QAIRT 2.45 | [Download](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/models/zipformer/releases/v0.51.0/zipformer-qnn_context_binary-float-qualcomm_qcs8450_proxy.zip)

For more device-specific assets and performance metrics, visit **[Zipformer on Qualcomm® AI Hub](https://aihub.qualcomm.com/models/zipformer)**.


### Option 2: Export with Custom Configurations

Use the [Qualcomm® AI Hub Models](https://github.com/qualcomm/ai-hub-models/blob/main/src/qai_hub_models/models/zipformer) 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 [Zipformer on GitHub](https://github.com/qualcomm/ai-hub-models/blob/main/src/qai_hub_models/models/zipformer) for usage instructions.

## Model Details

**Model Type:** Model_use_case.speech_recognition

**Model Stats:**
- Model checkpoint: pfluo/k2fsa-zipformer-chinese-english-mixed
- Input resolution: 80x71 (0.71 seconds audio)
- Max decoded sequence length: 200 tokens
- Number of parameters (encoder): 63.2M
- Model size (encoder) (float): 242 MB
- Number of parameters (decoder): 3.47M
- Model size (decoder) (float): 13.2 MB
- Number of parameters (joiner): 3.21M
- Model size (joiner) (float): 12.2 MB

## Performance Summary
| Model | Runtime | Precision | Chipset | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit
|---|---|---|---|---|---|---
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.052 ms | 0 - 10 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® X2 Elite | 0.035 ms | 7 - 7 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® X Elite | 0.152 ms | 7 - 7 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 3 Mobile | 0.059 ms | 0 - 7 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS8550 (Proxy) | 0.065 ms | 0 - 9 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS9075 | 0.189 ms | 0 - 3 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite For Galaxy Mobile | 0.051 ms | 0 - 8 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Elite Gen 5 Mobile | 0.054 ms | 0 - 10 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® X2 Elite | 0.041 ms | 7 - 7 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® X Elite | 0.169 ms | 7 - 7 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Gen 3 Mobile | 0.066 ms | 0 - 7 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | mixed | Qualcomm® QCS8550 (Proxy) | 0.078 ms | 0 - 8 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | mixed | Qualcomm® QCS9075 | 0.166 ms | 0 - 3 MB | NPU
| decoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Elite For Galaxy Mobile | 0.053 ms | 0 - 7 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.045 ms | 0 - 9 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® X2 Elite | 0.13 ms | 0 - 0 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® X Elite | 0.152 ms | 0 - 0 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 3 Mobile | 0.056 ms | 0 - 7 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8275 (Proxy) | 0.311 ms | 0 - 9 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8550 (Proxy) | 0.074 ms | 0 - 1 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8775P | 0.206 ms | 0 - 9 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS9075 | 0.135 ms | 0 - 2 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8450 (Proxy) | 0.098 ms | 0 - 9 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA7255P | 0.311 ms | 0 - 9 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8295P | 0.316 ms | 0 - 5 MB | NPU
| decoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite For Galaxy Mobile | 0.05 ms | 0 - 13 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | 4.886 ms | 10 - 20 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® X2 Elite | 5.407 ms | 142 - 142 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® X Elite | 9.732 ms | 142 - 142 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 3 Mobile | 6.615 ms | 9 - 17 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS8550 (Proxy) | 9.107 ms | 10 - 12 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS9075 | 10.393 ms | 8 - 12 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite For Galaxy Mobile | 5.475 ms | 9 - 17 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Elite Gen 5 Mobile | 7.137 ms | 10 - 20 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® X2 Elite | 8.359 ms | 75 - 75 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® X Elite | 13.525 ms | 75 - 75 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Gen 3 Mobile | 11.201 ms | 11 - 18 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | mixed | Qualcomm® QCS8550 (Proxy) | 15.991 ms | 9 - 10 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | mixed | Qualcomm® QCS9075 | 16.661 ms | 8 - 12 MB | NPU
| encoder | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Elite For Galaxy Mobile | 7.587 ms | 9 - 21 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Gen 5 Mobile | 4.781 ms | 3 - 13 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® X2 Elite | 6.092 ms | 3 - 3 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® X Elite | 9.335 ms | 3 - 3 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 3 Mobile | 6.626 ms | 2 - 10 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8275 (Proxy) | 23.469 ms | 3 - 10 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8550 (Proxy) | 8.905 ms | 3 - 5 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8775P | 10.702 ms | 3 - 11 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS9075 | 10.225 ms | 3 - 7 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8450 (Proxy) | 12.035 ms | 3 - 12 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA7255P | 23.469 ms | 3 - 10 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Qualcomm® SA8295P | 12.991 ms | 3 - 8 MB | NPU
| encoder | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite For Galaxy Mobile | 5.365 ms | 3 - 15 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.136 ms | 0 - 10 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® X2 Elite | 0.092 ms | 6 - 6 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® X Elite | 0.251 ms | 6 - 6 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Gen 3 Mobile | 0.153 ms | 0 - 7 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS8550 (Proxy) | 0.188 ms | 0 - 9 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Qualcomm® QCS9075 | 0.271 ms | 0 - 3 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | float | Snapdragon® 8 Elite For Galaxy Mobile | 0.136 ms | 0 - 7 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Elite Gen 5 Mobile | 0.137 ms | 0 - 10 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® X2 Elite | 0.085 ms | 6 - 6 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® X Elite | 0.266 ms | 6 - 6 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Gen 3 Mobile | 0.158 ms | 0 - 7 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | mixed | Qualcomm® QCS8550 (Proxy) | 0.203 ms | 0 - 8 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | mixed | Qualcomm® QCS9075 | 0.278 ms | 0 - 3 MB | NPU
| joiner | PRECOMPILED_QNN_ONNX | mixed | Snapdragon® 8 Elite For Galaxy Mobile | 0.136 ms | 0 - 7 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.132 ms | 0 - 10 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® X2 Elite | 0.176 ms | 0 - 0 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® X Elite | 0.245 ms | 0 - 0 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Gen 3 Mobile | 0.161 ms | 0 - 7 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8275 (Proxy) | 0.474 ms | 0 - 9 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8550 (Proxy) | 0.179 ms | 0 - 1 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® SA8775P | 0.316 ms | 0 - 9 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® QCS9075 | 0.235 ms | 0 - 2 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® QCS8450 (Proxy) | 0.228 ms | 0 - 8 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® SA7255P | 0.474 ms | 0 - 9 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Qualcomm® SA8295P | 0.457 ms | 0 - 5 MB | NPU
| joiner | QNN_CONTEXT_BINARY | float | Snapdragon® 8 Elite For Galaxy Mobile | 0.135 ms | 0 - 8 MB | NPU

## License
* The license for the original implementation of Zipformer can be found
  [here](https://github.com/huggingface/transformers/blob/v4.42.3/LICENSE).

## References
* [Zipformer A faster and better encoder for automatic speech recognition](https://openreview.net/forum?id=9WD9KwssyT)
* [Source Model Implementation](https://github.com/k2-fsa/icefall)

## 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).