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qualcomm
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PiperTTS-EN

Text-to-Audio
PyTorch
real_time
android
Model card Files
xet
 Community

PiperTTS-EN: Optimized for Qualcomm Devices

PiperTTS is a high-quality multi-lingual text-to-speech library.

This is based on the implementation of PiperTTS-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
VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile QAIRT 2.50 Download
VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile QAIRT 2.50 Download
VOICE_AI float Snapdragon® X2 Elite QAIRT 2.50 Download
VOICE_AI float Snapdragon® X Elite QAIRT 2.50 Download
VOICE_AI float Snapdragon® 8 Gen 3 Mobile QAIRT 2.50 Download
VOICE_AI float Snapdragon® 8 Gen 1 Mobile QAIRT 2.50 Download
VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 QAIRT 2.50 Download
VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) QAIRT 2.50 Download
VOICE_AI float Qualcomm® SA8775P QAIRT 2.50 Download
VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 QAIRT 2.50 Download
VOICE_AI float Qualcomm® SA7255P QAIRT 2.50 Download
VOICE_AI float Qualcomm® SA8295P QAIRT 2.50 Download

For more device-specific assets and performance metrics, visit PiperTTS-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 PiperTTS-EN on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.audio_generation

Model Stats:

  • Max decoded sequence length: 64 tokens
  • Model checkpoint: rhasspy/piper-checkpoints
  • Model size (decoder) (float): 6.37 MB
  • Model size (encoder) (float): 28.7 MB
  • Model size (flow) (float): 28.2 MB
  • Model size (sdp) (float): 6.61 KB
  • Model size (t5_decoder) (float): 21.8 MB
  • Model size (t5_encoder) (float): 57.5 MB
  • Number of parameters (decoder): 1.66M
  • Number of parameters (encoder): 7.51M
  • Number of parameters (flow): 7.39M
  • Number of parameters (sdp): 1.04K
  • Number of parameters (t5_decoder): 5.72M
  • Number of parameters (t5_encoder): 15.1M

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 0.292 ms 0 - 8 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 0.308 ms 0 - 12 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X2 Elite 0.323 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X Elite 0.421 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.319 ms 0 - 7 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 0.479 ms 1 - 11 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 0.584 ms 1 - 4 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.407 ms 0 - 2 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8775P 0.659 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8650P 0.659 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8255P 0.659 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8450 0.479 ms 1 - 11 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 0.522 ms 1 - 3 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 0.421 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.308 ms 0 - 12 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA7255P 1.0 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.683 ms 0 - 5 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 0.488 ms 0 - 8 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 0.521 ms 0 - 12 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X2 Elite 0.638 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X Elite 1.066 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.623 ms 0 - 7 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 1.275 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 1.075 ms 0 - 3 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.876 ms 0 - 1 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8775P 1.212 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8650P 1.212 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8255P 1.212 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8450 1.275 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 1.119 ms 2 - 4 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 1.066 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.521 ms 0 - 12 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA7255P 2.801 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8295P 1.602 ms 0 - 5 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 4.418 ms 0 - 8 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 4.971 ms 0 - 12 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 4.119 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 7.349 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 5.998 ms 0 - 7 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 4.78 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 7.951 ms 0 - 3 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 7.693 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® SA8775P 7.822 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA8650P 7.822 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA8255P 7.822 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® QCS8450 4.78 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 7.63 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 7.349 ms 0 - 0 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 4.971 ms 0 - 12 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 14.686 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 5.352 ms 0 - 5 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 8.859 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 9.33 ms 0 - 12 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 8.404 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 15.733 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 10.864 ms 0 - 7 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 17.576 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 16.284 ms 0 - 4 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 15.696 ms 0 - 1 MB NPU
encoder VOICE_AI float Qualcomm® SA8775P 17.014 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 17.014 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 17.014 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 17.576 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 17.16 ms 2 - 5 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 15.733 ms 0 - 0 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 9.33 ms 0 - 12 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 32.674 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 19.979 ms 0 - 6 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 9.148 ms 3 - 11 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 8.481 ms 3 - 15 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.766 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® X Elite 15.037 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 10.757 ms 4 - 11 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 1 Mobile 16.61 ms 3 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 17.117 ms 4 - 12 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 14.338 ms 4 - 5 MB NPU
flow VOICE_AI float Qualcomm® SA8775P 16.413 ms 1 - 6 MB NPU
flow VOICE_AI float Qualcomm® SA8650P 16.413 ms 1 - 6 MB NPU
flow VOICE_AI float Qualcomm® SA8255P 16.413 ms 1 - 6 MB NPU
flow VOICE_AI float Qualcomm® QCS8450 16.61 ms 3 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 16.614 ms 4 - 11 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 15.037 ms 4 - 4 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ Q-8750 8.481 ms 3 - 15 MB NPU
flow VOICE_AI float Qualcomm® SA7255P 39.357 ms 1 - 9 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.08 ms 3 - 8 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 7.25 ms 0 - 9 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 7.432 ms 0 - 13 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.759 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® X Elite 12.085 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 3 Mobile 8.127 ms 0 - 7 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 1 Mobile 11.902 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 11.037 ms 0 - 4 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 11.231 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® SA8775P 11.946 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8650P 11.946 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8255P 11.946 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® QCS8450 11.902 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 12.016 ms 2 - 5 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 12.085 ms 0 - 0 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ Q-8750 7.432 ms 0 - 13 MB NPU
sdp VOICE_AI float Qualcomm® SA7255P 21.772 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 13.391 ms 0 - 5 MB NPU

License

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

References

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