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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.

Deploying PiperTTS-EN on-device

This model is compatible with the Qualcomm Voice AI SDK. Download the SDK from the Qualcomm Package Manager to deploy this model on-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 Mobile QAIRT 2.45 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 Qualcomm® QCS8550 (Proxy) QAIRT 2.45 Download
VOICE_AI float Qualcomm® SA8775P QAIRT 2.45 Download
VOICE_AI float Snapdragon® 8 Elite For Galaxy 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® QCS9075 QAIRT 2.45 Download
VOICE_AI float Qualcomm® QCS8450 (Proxy) 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® 8 Elite Gen 5 Mobile 0.256 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X2 Elite 0.353 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X Elite 0.417 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.331 ms 0 - 7 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8275 1.035 ms 0 - 8 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 0.406 ms 1 - 2 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8775P 0.657 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8650P 0.657 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8255P 0.657 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.798 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 0.281 ms 0 - 13 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS9075 0.514 ms 3 - 5 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 0.578 ms 1 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA7255P 1.035 ms 0 - 8 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8750 0.281 ms 0 - 13 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS7181 0.417 ms 1 - 1 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.487 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X2 Elite 0.637 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X Elite 1.05 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 Qualcomm® QCS8275 2.891 ms 0 - 8 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 0.89 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® SA8295P 1.738 ms 0 - 6 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 0.521 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS9075 1.12 ms 0 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 1.357 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA7255P 2.891 ms 0 - 8 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8750 0.521 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS7181 1.05 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 1.809 ms 0 - 9 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 1.822 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 3.089 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 2.17 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® QCS8275 8.11 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 3.019 ms 0 - 1 MB NPU
decoder VOICE_AI float Qualcomm® SA8775P 3.483 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8650P 3.483 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8255P 3.483 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 3.979 ms 0 - 6 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 1.898 ms 0 - 13 MB NPU
decoder VOICE_AI float Qualcomm® QCS9075 3.332 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 4.392 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 8.11 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® QCS8750 1.898 ms 0 - 13 MB NPU
decoder VOICE_AI float Qualcomm® QCS7181 3.089 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 17.072 ms 0 - 10 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 18.089 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 30.038 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 23.616 ms 0 - 7 MB NPU
encoder VOICE_AI float Qualcomm® QCS8275 47.689 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 33.002 ms 0 - 1 MB NPU
encoder VOICE_AI float Qualcomm® SA8775P 32.983 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 32.983 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 32.983 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 35.228 ms 0 - 6 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 19.209 ms 0 - 13 MB NPU
encoder VOICE_AI float Qualcomm® QCS9075 32.954 ms 2 - 5 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 40.133 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 47.689 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8750 19.209 ms 0 - 13 MB NPU
encoder VOICE_AI float Qualcomm® QCS7181 30.038 ms 0 - 0 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 8.916 ms 4 - 13 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.654 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® X Elite 15.809 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 11.0 ms 4 - 11 MB NPU
flow VOICE_AI float Qualcomm® QCS8275 39.687 ms 2 - 11 MB NPU
flow VOICE_AI float Qualcomm® QCS8550 (Proxy) 15.146 ms 4 - 5 MB NPU
flow VOICE_AI float Qualcomm® SA8775P 17.303 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® SA8650P 17.303 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® SA8255P 17.303 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.869 ms 0 - 6 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 8.896 ms 1 - 14 MB NPU
flow VOICE_AI float Qualcomm® QCS9075 17.753 ms 4 - 10 MB NPU
flow VOICE_AI float Qualcomm® QCS8450 (Proxy) 18.174 ms 4 - 13 MB NPU
flow VOICE_AI float Qualcomm® SA7255P 39.687 ms 2 - 11 MB NPU
flow VOICE_AI float Qualcomm® QCS8750 8.896 ms 1 - 14 MB NPU
flow VOICE_AI float Qualcomm® QCS7181 15.809 ms 4 - 4 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 6.587 ms 0 - 10 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.139 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® X Elite 11.224 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 3 Mobile 7.688 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS8275 20.595 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS8550 (Proxy) 10.516 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® SA8775P 11.126 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8650P 11.126 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8255P 11.126 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 12.652 ms 0 - 6 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 6.962 ms 0 - 13 MB NPU
sdp VOICE_AI float Qualcomm® QCS9075 10.914 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® QCS8450 (Proxy) 11.243 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® SA7255P 20.595 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS8750 6.962 ms 0 - 13 MB NPU
sdp VOICE_AI float Qualcomm® QCS7181 11.224 ms 0 - 0 MB NPU

License

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

References

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