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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® 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® Dragonwing™ IQ-8275 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 Qualcomm® Dragonwing™ IQ-9075 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 Snapdragon® 8 Elite Mobile QAIRT 2.45 Download
VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile QAIRT 2.45 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® X2 Elite 0.34 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X Elite 0.426 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.31 ms 0 - 8 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 0.574 ms 1 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 0.579 ms 1 - 3 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 0.967 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.396 ms 0 - 1 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8775P 0.703 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8650P 0.703 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8255P 0.703 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8450 0.574 ms 1 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 0.528 ms 1 - 3 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 0.426 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.282 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA7255P 0.967 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.803 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Mobile 0.282 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.261 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X2 Elite 0.628 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X Elite 1.046 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.634 ms 0 - 7 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 1.35 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 1.083 ms 0 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 2.813 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.894 ms 1 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8775P 1.263 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8650P 1.263 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8255P 1.263 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8450 1.35 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 1.13 ms 0 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 1.046 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.522 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA7255P 2.813 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8295P 1.731 ms 0 - 6 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Mobile 0.522 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.489 ms 0 - 13 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 1.727 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 3.076 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 2.208 ms 0 - 7 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 4.371 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 3.421 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 8.073 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 3.019 ms 0 - 1 MB NPU
decoder VOICE_AI float Qualcomm® SA8775P 3.48 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8650P 3.48 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8255P 3.48 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® QCS8450 4.371 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 3.344 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 3.076 ms 0 - 0 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 1.898 ms 0 - 14 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 8.073 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 3.988 ms 0 - 6 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Mobile 1.898 ms 0 - 14 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 1.821 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 18.49 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 29.735 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 23.276 ms 0 - 7 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 38.317 ms 1 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 29.932 ms 0 - 3 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 47.099 ms 0 - 8 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 31.525 ms 0 - 2 MB NPU
encoder VOICE_AI float Qualcomm® SA8775P 32.94 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 32.94 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 32.94 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 38.317 ms 1 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 32.361 ms 0 - 3 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 29.735 ms 0 - 0 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 19.332 ms 0 - 13 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 47.099 ms 0 - 8 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 35.202 ms 0 - 6 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Mobile 19.332 ms 0 - 13 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 17.048 ms 0 - 8 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.601 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® X Elite 15.768 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 11.106 ms 4 - 11 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 1 Mobile 18.323 ms 4 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 17.557 ms 4 - 11 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 39.915 ms 1 - 9 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 15.279 ms 4 - 5 MB NPU
flow VOICE_AI float Qualcomm® SA8775P 17.282 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8650P 17.282 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8255P 17.282 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® QCS8450 18.323 ms 4 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 17.276 ms 4 - 10 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 15.768 ms 4 - 4 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ Q-8750 8.947 ms 1 - 14 MB NPU
flow VOICE_AI float Qualcomm® SA7255P 39.915 ms 1 - 9 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.783 ms 0 - 6 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Mobile 8.947 ms 1 - 14 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 8.982 ms 3 - 11 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.146 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® X Elite 11.269 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 3 Mobile 7.699 ms 0 - 7 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 1 Mobile 11.204 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 10.375 ms 0 - 3 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-8275 20.608 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 10.378 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® SA8775P 11.132 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8650P 11.132 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8255P 11.132 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® QCS8450 11.204 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 11.279 ms 2 - 4 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 11.269 ms 0 - 0 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ Q-8750 6.955 ms 0 - 13 MB NPU
sdp VOICE_AI float Qualcomm® SA7255P 20.608 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 12.667 ms 0 - 6 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Mobile 6.955 ms 0 - 13 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 6.592 ms 0 - 10 MB NPU

License

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

References

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