MeloTTS-ZH: Optimized for Qualcomm Devices
MeloTTS is a high-quality multi-lingual text-to-speech library for English, Chinese and Spanish language.
This is based on the implementation of MeloTTS-ZH 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.
Deploying MeloTTS-ZH on-device
This model is compatible with the Qualcomm Voice AI SDK. Download the SDK from the Qualcomm Package Manager to deploy this model on-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 |
|---|---|---|---|---|
| VOICE_AI | mixed_with_float | Snapdragon® X2 Elite | QAIRT 2.45 | Download |
| VOICE_AI | mixed_with_float | Snapdragon® X Elite | QAIRT 2.45 | Download |
| VOICE_AI | mixed_with_float | Snapdragon® 8 Gen 3 Mobile | QAIRT 2.45 | Download |
| VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-8275 | QAIRT 2.45 | Download |
| VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | QAIRT 2.45 | Download |
| VOICE_AI | mixed_with_float | Qualcomm® SA8775P | QAIRT 2.45 | Download |
| VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-9075 | QAIRT 2.45 | Download |
| VOICE_AI | mixed_with_float | Qualcomm® SA7255P | QAIRT 2.45 | Download |
| VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Mobile | QAIRT 2.45 | Download |
| VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Gen 5 Mobile | QAIRT 2.45 | Download |
For more device-specific assets and performance metrics, visit MeloTTS-ZH 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 MeloTTS-ZH on GitHub for usage instructions.
Model Details
Model Type: Model_use_case.audio_generation
Model Stats:
- Max decoded sequence length: 512 tokens
- Model checkpoint: myshell-ai/MeloTTS-Chinese
- Model size (bert_wrapper) (float): 581 MB
- Model size (decoder) (float): 55.5 MB
- Model size (encoder) (float): 31.9 MB
- Model size (flow) (float): 76.9 MB
- Number of parameters (bert_wrapper): 152M
- Number of parameters (decoder): 14.5M
- Number of parameters (encoder): 8.34M
- Number of parameters (flow): 20.1M
Performance Summary
| Model | Runtime | Precision | Chipset | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit |
|---|---|---|---|---|---|---|
| bert_wrapper | VOICE_AI | mixed_with_float | Snapdragon® X2 Elite | 3.271 ms | 0 - 0 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Snapdragon® X Elite | 7.715 ms | 0 - 0 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Snapdragon® 8 Gen 3 Mobile | 5.128 ms | 0 - 7 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-8275 | 9.981 ms | 0 - 3 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-8275 | 30.645 ms | 0 - 10 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 7.116 ms | 0 - 1 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® SA8775P | 9.309 ms | 0 - 10 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® SA8650P | 9.309 ms | 0 - 10 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® SA8255P | 9.309 ms | 0 - 10 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-9075 | 9.017 ms | 0 - 2 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-X7181 | 7.715 ms | 0 - 0 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ Q-8750 | 3.361 ms | 0 - 12 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Qualcomm® SA7255P | 30.645 ms | 0 - 10 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Mobile | 3.361 ms | 0 - 12 MB | NPU |
| bert_wrapper | VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Gen 5 Mobile | 2.693 ms | 0 - 10 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Snapdragon® X2 Elite | 41.107 ms | 1 - 1 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Snapdragon® X Elite | 82.927 ms | 1 - 1 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Snapdragon® 8 Gen 3 Mobile | 61.168 ms | 2 - 10 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-8275 | 74.643 ms | 0 - 2 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-8275 | 134.474 ms | 0 - 10 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 85.06 ms | 0 - 2 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® SA8775P | 83.911 ms | 0 - 10 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® SA8650P | 83.911 ms | 0 - 10 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® SA8255P | 83.911 ms | 0 - 10 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-9075 | 82.761 ms | 0 - 2 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-X7181 | 82.927 ms | 1 - 1 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ Q-8750 | 48.108 ms | 0 - 9 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Qualcomm® SA7255P | 134.474 ms | 0 - 10 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Mobile | 48.108 ms | 0 - 9 MB | NPU |
| decoder | VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Gen 5 Mobile | 42.49 ms | 0 - 9 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Snapdragon® X2 Elite | 25.285 ms | 4 - 4 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Snapdragon® X Elite | 40.439 ms | 4 - 4 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Snapdragon® 8 Gen 3 Mobile | 30.393 ms | 4 - 11 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-8275 | 39.306 ms | 4 - 10 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-8275 | 66.6 ms | 2 - 11 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 40.769 ms | 4 - 5 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® SA8775P | 43.187 ms | 2 - 11 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® SA8650P | 43.187 ms | 2 - 11 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® SA8255P | 43.187 ms | 2 - 11 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-9075 | 42.771 ms | 4 - 9 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-X7181 | 40.439 ms | 4 - 4 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ Q-8750 | 25.433 ms | 2 - 10 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Qualcomm® SA7255P | 66.6 ms | 2 - 11 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Mobile | 25.433 ms | 2 - 10 MB | NPU |
| encoder | VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Gen 5 Mobile | 23.812 ms | 2 - 11 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Snapdragon® X2 Elite | 67.768 ms | 2 - 2 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Snapdragon® X Elite | 129.255 ms | 2 - 2 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Snapdragon® 8 Gen 3 Mobile | 100.215 ms | 2 - 10 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-8275 | 122.558 ms | 2 - 6 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-8275 | 245.44 ms | 2 - 10 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 130.738 ms | 2 - 4 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® SA8775P | 128.57 ms | 2 - 12 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® SA8650P | 128.57 ms | 2 - 12 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® SA8255P | 128.57 ms | 2 - 12 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-9075 | 127.417 ms | 3 - 7 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ IQ-X7181 | 129.255 ms | 2 - 2 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® Dragonwing™ Q-8750 | 81.528 ms | 2 - 11 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Qualcomm® SA7255P | 245.44 ms | 2 - 10 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Mobile | 81.528 ms | 2 - 11 MB | NPU |
| flow | VOICE_AI | mixed_with_float | Snapdragon® 8 Elite Gen 5 Mobile | 71.057 ms | 2 - 10 MB | NPU |
License
- The license for the original implementation of MeloTTS-ZH can be found here.
References
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.
