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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™ 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:

  • 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 0.326 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 0.305 ms 0 - 7 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 0.579 ms 1 - 14 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8275 0.985 ms 0 - 8 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.395 ms 1 - 2 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8775P 0.647 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8650P 0.647 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8255P 0.647 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8450 0.579 ms 1 - 14 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 0.521 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 0.285 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA7255P 0.985 ms 0 - 8 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.804 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Mobile 0.285 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 0.646 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X Elite 1.058 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.637 ms 0 - 7 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 1.335 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8275 2.768 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.888 ms 0 - 1 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8775P 1.258 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8650P 1.258 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8255P 1.258 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8450 1.335 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 1.134 ms 0 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 1.058 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.524 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA7255P 2.768 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8295P 1.738 ms 0 - 6 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Mobile 0.524 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.487 ms 0 - 9 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 1.732 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 3.07 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 2.152 ms 0 - 7 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 4.359 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8275 8.086 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 3.021 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 4.359 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 3.331 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 3.07 ms 0 - 0 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 1.904 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 8.086 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 1.904 ms 0 - 9 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 1.82 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 18.695 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 29.851 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 23.586 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 38.395 ms 1 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8275 47.254 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 31.575 ms 0 - 2 MB NPU
encoder VOICE_AI float Qualcomm® SA8775P 32.926 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 32.926 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 32.926 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 38.395 ms 1 - 10 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 32.301 ms 2 - 5 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 29.851 ms 0 - 0 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 18.976 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 47.254 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 35.066 ms 0 - 6 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Mobile 18.976 ms 0 - 9 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 17.027 ms 0 - 8 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.667 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® X Elite 15.852 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 11.107 ms 4 - 12 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 1 Mobile 18.201 ms 4 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ QCS8275 40.072 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 15.097 ms 4 - 5 MB NPU
flow VOICE_AI float Qualcomm® SA8775P 17.253 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8650P 17.253 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8255P 17.253 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® QCS8450 18.201 ms 4 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 17.417 ms 4 - 10 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 15.852 ms 4 - 4 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ Q-8750 8.916 ms 3 - 12 MB NPU
flow VOICE_AI float Qualcomm® SA7255P 40.072 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.929 ms 1 - 7 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Mobile 8.916 ms 3 - 12 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 8.984 ms 2 - 11 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.102 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® X Elite 11.218 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 3 Mobile 7.691 ms 0 - 8 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 1 Mobile 11.224 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ QCS8275 20.631 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 10.444 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® SA8775P 11.12 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8650P 11.12 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8255P 11.12 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® QCS8450 11.224 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 10.985 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 11.218 ms 0 - 0 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ Q-8750 6.97 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® SA7255P 20.631 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 12.655 ms 0 - 6 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Mobile 6.97 ms 0 - 9 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 6.605 ms 0 - 9 MB NPU

License

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

References

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