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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® 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-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:

  • 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 0.341 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X Elite 0.44 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.322 ms 0 - 7 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 0.572 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8275 0.991 ms 0 - 7 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.401 ms 0 - 2 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8775P 0.654 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8650P 0.654 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8255P 0.654 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8450 0.572 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.281 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Mobile 0.283 ms 0 - 13 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA7255P 0.991 ms 0 - 7 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 0.525 ms 3 - 5 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.789 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.283 ms 0 - 13 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 0.44 ms 1 - 1 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X2 Elite 0.643 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X Elite 1.041 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.64 ms 0 - 7 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 1.336 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8275 2.761 ms 0 - 8 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.897 ms 0 - 1 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8775P 1.257 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8650P 1.257 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8255P 1.257 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8450 1.336 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.489 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 2.761 ms 0 - 8 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 1.121 ms 2 - 4 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8295P 1.742 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 1.041 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 1.754 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 3.069 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 2.197 ms 0 - 7 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 4.379 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® QCS8275 8.073 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 3.021 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® SA8775P 3.48 ms 0 - 5 MB NPU
decoder VOICE_AI float Qualcomm® SA8650P 3.48 ms 0 - 5 MB NPU
decoder VOICE_AI float Qualcomm® SA8255P 3.48 ms 0 - 5 MB NPU
decoder VOICE_AI float Qualcomm® QCS8450 4.379 ms 0 - 9 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 1.827 ms 0 - 8 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Mobile 1.895 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 8.073 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 3.687 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 3.97 ms 0 - 6 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 1.895 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 3.069 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 18.606 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 29.714 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 23.739 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 38.045 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® QCS8275 47.244 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 31.572 ms 0 - 2 MB NPU
encoder VOICE_AI float Qualcomm® SA8775P 32.96 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 32.96 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 32.96 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 38.045 ms 0 - 10 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 17.056 ms 0 - 13 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Mobile 19.32 ms 0 - 13 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 47.244 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 33.0 ms 0 - 3 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 35.237 ms 0 - 6 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 19.32 ms 0 - 13 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 29.714 ms 0 - 0 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.563 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® X Elite 15.859 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 11.059 ms 4 - 11 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 1 Mobile 18.212 ms 3 - 12 MB NPU
flow VOICE_AI float Qualcomm® QCS8275 39.966 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 14.958 ms 4 - 5 MB NPU
flow VOICE_AI float Qualcomm® SA8775P 17.249 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® SA8650P 17.249 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® SA8255P 17.249 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® QCS8450 18.212 ms 3 - 12 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 8.973 ms 1 - 9 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Mobile 8.925 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® SA7255P 39.966 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 17.494 ms 4 - 10 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.859 ms 0 - 6 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ Q-8750 8.925 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 15.859 ms 4 - 4 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.098 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® X Elite 11.364 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 3 Mobile 7.699 ms 0 - 8 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 1 Mobile 11.196 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS8275 20.611 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 10.41 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® SA8775P 11.1 ms 0 - 6 MB NPU
sdp VOICE_AI float Qualcomm® SA8650P 11.1 ms 0 - 6 MB NPU
sdp VOICE_AI float Qualcomm® SA8255P 11.1 ms 0 - 6 MB NPU
sdp VOICE_AI float Qualcomm® QCS8450 11.196 ms 0 - 9 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 6.599 ms 0 - 9 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Mobile 6.964 ms 0 - 13 MB NPU
sdp VOICE_AI float Qualcomm® SA7255P 20.611 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 11.206 ms 2 - 4 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 12.655 ms 0 - 6 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ Q-8750 6.964 ms 0 - 13 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 11.364 ms 0 - 0 MB NPU

License

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

References

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