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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 0.286 ms 0 - 12 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X2 Elite 0.355 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.317 ms 0 - 7 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 0.471 ms 3 - 13 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 0.597 ms 1 - 4 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.41 ms 1 - 2 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 0.471 ms 3 - 13 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 0.536 ms 1 - 3 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 0.446 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.286 ms 0 - 12 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.677 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 0.523 ms 0 - 8 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X2 Elite 0.663 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.624 ms 0 - 7 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 1.266 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 1.081 ms 0 - 3 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.884 ms 0 - 2 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 1.266 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 1.136 ms 0 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 1.048 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.523 ms 0 - 8 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8295P 1.613 ms 0 - 5 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 4.413 ms 0 - 8 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 4.981 ms 0 - 12 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 4.263 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 5.925 ms 0 - 7 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 4.783 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 7.921 ms 0 - 3 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 7.795 ms 0 - 2 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 4.783 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 7.627 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 7.531 ms 0 - 0 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 4.981 ms 0 - 12 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 5.356 ms 0 - 5 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 8.856 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 9.302 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 8.554 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 10.885 ms 0 - 7 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 17.744 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 16.374 ms 0 - 4 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 15.646 ms 0 - 1 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 17.744 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 17.409 ms 0 - 3 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 15.515 ms 0 - 0 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 9.302 ms 0 - 8 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 19.983 ms 0 - 5 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 9.156 ms 3 - 10 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 8.448 ms 1 - 9 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.695 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 10.729 ms 6 - 14 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 1 Mobile 16.547 ms 3 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 16.854 ms 4 - 12 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 14.406 ms 4 - 5 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 16.547 ms 3 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 16.356 ms 4 - 11 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 15.275 ms 4 - 4 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ Q-8750 8.448 ms 1 - 9 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.034 ms 0 - 5 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 7.245 ms 0 - 8 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 7.437 ms 0 - 7 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.775 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 3 Mobile 8.127 ms 0 - 8 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 1 Mobile 11.92 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 11.021 ms 0 - 4 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 11.246 ms 1 - 3 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 11.92 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 11.856 ms 2 - 5 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 12.153 ms 0 - 0 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ Q-8750 7.437 ms 0 - 7 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 13.412 ms 0 - 5 MB NPU

License

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

References

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