library_name: pytorch
license: other
tags:
- real_time
- android
pipeline_tag: text-to-audio
PiperTTS-DE: Optimized for Qualcomm Devices
PiperTTS is a high-quality multi-lingual text-to-speech library.
This is based on the implementation of PiperTTS-DE 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 |
|---|---|---|---|---|
| VOICE_AI | float | Snapdragon® X2 Elite | QAIRT 2.45 | Download |
| VOICE_AI | float | Snapdragon® X Elite | QAIRT 2.45 | Download |
| VOICE_AI | float | Snapdragon® 8 Gen 3 Mobile | QAIRT 2.45 | Download |
| VOICE_AI | float | Snapdragon® 8 Gen 1 Mobile | QAIRT 2.45 | Download |
| VOICE_AI | float | Qualcomm® QCS8275 | QAIRT 2.45 | Download |
| VOICE_AI | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | QAIRT 2.45 | Download |
| VOICE_AI | float | Qualcomm® SA8775P | QAIRT 2.45 | Download |
| VOICE_AI | float | Snapdragon® 8 Elite Mobile | QAIRT 2.45 | Download |
| VOICE_AI | float | Snapdragon® 8 Elite Gen 5 Mobile | QAIRT 2.45 | Download |
| VOICE_AI | float | Qualcomm® SA7255P | QAIRT 2.45 | Download |
| VOICE_AI | float | Qualcomm® SA8295P | QAIRT 2.45 | Download |
| VOICE_AI | float | Qualcomm® Dragonwing™ IQ-9075 | QAIRT 2.45 | Download |
For more device-specific assets and performance metrics, visit PiperTTS-DE 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 PiperTTS-DE on GitHub for usage instructions.
Model Details
Model Type: Model_use_case.audio_generation
Model Stats:
- Model checkpoint: rhasspy/piper-checkpoints
- Max decoded sequence length: 64 tokens
- Number of parameters (encoder): 7.51M
- Model size (encoder) (float): 28.7 MB
- Number of parameters (sdp): 1.04K
- Model size (sdp) (float): 6.61 KB
- Number of parameters (flow): 7.39M
- Model size (flow) (float): 28.2 MB
- Number of parameters (decoder): 1.66M
- Model size (decoder) (float): 6.37 MB
- Number of parameters (t5_encoder): 15.1M
- Model size (t5_encoder) (float): 57.5 MB
- Number of parameters (t5_decoder): 5.72M
- Model size (t5_decoder) (float): 21.8 MB
Performance Summary
| Model | Runtime | Precision | Chipset | Inference Time (ms) | Peak Memory Range (MB) | Primary Compute Unit |
|---|---|---|---|---|---|---|
| charsiu_decoder | VOICE_AI | float | Snapdragon® X2 Elite | 0.334 ms | 1 - 1 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Snapdragon® X Elite | 0.415 ms | 1 - 1 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Snapdragon® 8 Gen 3 Mobile | 0.309 ms | 0 - 7 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Snapdragon® 8 Gen 1 Mobile | 0.572 ms | 1 - 13 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® QCS8275 | 0.975 ms | 0 - 8 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 0.398 ms | 0 - 2 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® SA8775P | 0.647 ms | 0 - 9 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® SA8650P | 0.647 ms | 0 - 9 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® SA8255P | 0.647 ms | 0 - 9 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® QCS8450 | 0.572 ms | 1 - 13 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.26 ms | 0 - 9 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Snapdragon® 8 Elite Mobile | 0.272 ms | 0 - 13 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® SA7255P | 0.975 ms | 0 - 8 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-9075 | 0.546 ms | 3 - 5 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® SA8295P | 0.795 ms | 0 - 6 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® Dragonwing™ Q-8750 | 0.272 ms | 0 - 13 MB | NPU |
| charsiu_decoder | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-X7181 | 0.415 ms | 1 - 1 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Snapdragon® X2 Elite | 0.624 ms | 0 - 0 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Snapdragon® X Elite | 1.064 ms | 0 - 0 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Snapdragon® 8 Gen 3 Mobile | 0.632 ms | 0 - 7 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Snapdragon® 8 Gen 1 Mobile | 1.353 ms | 0 - 9 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® QCS8275 | 2.75 ms | 0 - 9 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 0.886 ms | 0 - 1 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® SA8775P | 1.264 ms | 0 - 10 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® SA8650P | 1.264 ms | 0 - 10 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® SA8255P | 1.264 ms | 0 - 10 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® QCS8450 | 1.353 ms | 0 - 9 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Snapdragon® 8 Elite Gen 5 Mobile | 0.488 ms | 0 - 8 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Snapdragon® 8 Elite Mobile | 0.529 ms | 0 - 9 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® SA7255P | 2.75 ms | 0 - 9 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-9075 | 1.116 ms | 0 - 2 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® SA8295P | 1.752 ms | 0 - 6 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® Dragonwing™ Q-8750 | 0.529 ms | 0 - 9 MB | NPU |
| charsiu_encoder | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-X7181 | 1.064 ms | 0 - 0 MB | NPU |
| decoder | VOICE_AI | float | Snapdragon® X2 Elite | 1.778 ms | 0 - 0 MB | NPU |
| decoder | VOICE_AI | float | Snapdragon® X Elite | 3.088 ms | 0 - 0 MB | NPU |
| decoder | VOICE_AI | float | Snapdragon® 8 Gen 3 Mobile | 2.189 ms | 0 - 7 MB | NPU |
| decoder | VOICE_AI | float | Snapdragon® 8 Gen 1 Mobile | 4.387 ms | 0 - 9 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® QCS8275 | 8.141 ms | 0 - 9 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 3.011 ms | 0 - 2 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® SA8775P | 3.461 ms | 0 - 10 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® SA8650P | 3.461 ms | 0 - 10 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® SA8255P | 3.461 ms | 0 - 10 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® QCS8450 | 4.387 ms | 0 - 9 MB | NPU |
| decoder | VOICE_AI | float | Snapdragon® 8 Elite Gen 5 Mobile | 1.822 ms | 0 - 9 MB | NPU |
| decoder | VOICE_AI | float | Snapdragon® 8 Elite Mobile | 1.898 ms | 0 - 9 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® SA7255P | 8.141 ms | 0 - 9 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-9075 | 3.332 ms | 0 - 2 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® SA8295P | 3.989 ms | 0 - 6 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® Dragonwing™ Q-8750 | 1.898 ms | 0 - 9 MB | NPU |
| decoder | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-X7181 | 3.088 ms | 0 - 0 MB | NPU |
| encoder | VOICE_AI | float | Snapdragon® X2 Elite | 18.671 ms | 0 - 0 MB | NPU |
| encoder | VOICE_AI | float | Snapdragon® X Elite | 29.322 ms | 0 - 0 MB | NPU |
| encoder | VOICE_AI | float | Snapdragon® 8 Gen 3 Mobile | 23.738 ms | 0 - 7 MB | NPU |
| encoder | VOICE_AI | float | Snapdragon® 8 Gen 1 Mobile | 38.348 ms | 1 - 10 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® QCS8275 | 47.396 ms | 0 - 10 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 31.494 ms | 0 - 2 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® SA8775P | 32.991 ms | 0 - 10 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® SA8650P | 32.991 ms | 0 - 10 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® SA8255P | 32.991 ms | 0 - 10 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® QCS8450 | 38.348 ms | 1 - 10 MB | NPU |
| encoder | VOICE_AI | float | Snapdragon® 8 Elite Gen 5 Mobile | 17.098 ms | 0 - 8 MB | NPU |
| encoder | VOICE_AI | float | Snapdragon® 8 Elite Mobile | 19.324 ms | 0 - 9 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® SA7255P | 47.396 ms | 0 - 10 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-9075 | 33.026 ms | 0 - 3 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® SA8295P | 35.24 ms | 0 - 6 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® Dragonwing™ Q-8750 | 19.324 ms | 0 - 9 MB | NPU |
| encoder | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-X7181 | 29.322 ms | 0 - 0 MB | NPU |
| flow | VOICE_AI | float | Snapdragon® X2 Elite | 9.69 ms | 4 - 4 MB | NPU |
| flow | VOICE_AI | float | Snapdragon® X Elite | 15.87 ms | 4 - 4 MB | NPU |
| flow | VOICE_AI | float | Snapdragon® 8 Gen 3 Mobile | 10.982 ms | 4 - 11 MB | NPU |
| flow | VOICE_AI | float | Snapdragon® 8 Gen 1 Mobile | 18.195 ms | 3 - 13 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® QCS8275 | 40.096 ms | 1 - 10 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 15.057 ms | 4 - 7 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® SA8775P | 17.152 ms | 1 - 10 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® SA8650P | 17.152 ms | 1 - 10 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® SA8255P | 17.152 ms | 1 - 10 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® QCS8450 | 18.195 ms | 3 - 13 MB | NPU |
| flow | VOICE_AI | float | Snapdragon® 8 Elite Gen 5 Mobile | 8.91 ms | 1 - 9 MB | NPU |
| flow | VOICE_AI | float | Snapdragon® 8 Elite Mobile | 8.925 ms | 3 - 16 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® SA7255P | 40.096 ms | 1 - 10 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-9075 | 17.75 ms | 4 - 10 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® SA8295P | 18.953 ms | 0 - 6 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® Dragonwing™ Q-8750 | 8.925 ms | 3 - 16 MB | NPU |
| flow | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-X7181 | 15.87 ms | 4 - 4 MB | NPU |
| sdp | VOICE_AI | float | Snapdragon® X2 Elite | 7.132 ms | 0 - 0 MB | NPU |
| sdp | VOICE_AI | float | Snapdragon® X Elite | 11.293 ms | 0 - 0 MB | NPU |
| sdp | VOICE_AI | float | Snapdragon® 8 Gen 3 Mobile | 7.689 ms | 0 - 8 MB | NPU |
| sdp | VOICE_AI | float | Snapdragon® 8 Gen 1 Mobile | 11.166 ms | 0 - 10 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® QCS8275 | 20.589 ms | 0 - 10 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® Dragonwing™ QCS8550 (Proxy) | 10.408 ms | 0 - 2 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® SA8775P | 11.144 ms | 3 - 9 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® SA8650P | 11.144 ms | 3 - 9 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® SA8255P | 11.144 ms | 3 - 9 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® QCS8450 | 11.166 ms | 0 - 10 MB | NPU |
| sdp | VOICE_AI | float | Snapdragon® 8 Elite Gen 5 Mobile | 6.603 ms | 0 - 9 MB | NPU |
| sdp | VOICE_AI | float | Snapdragon® 8 Elite Mobile | 6.95 ms | 0 - 13 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® SA7255P | 20.589 ms | 0 - 10 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-9075 | 11.075 ms | 2 - 4 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® SA8295P | 12.664 ms | 0 - 6 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® Dragonwing™ Q-8750 | 6.95 ms | 0 - 13 MB | NPU |
| sdp | VOICE_AI | float | Qualcomm® Dragonwing™ IQ-X7181 | 11.293 ms | 0 - 0 MB | NPU |
License
- The license for the original implementation of PiperTTS-DE 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.
