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PiperTTS-IT

Text-to-Audio
PyTorch
real_time
android
Model card Files
xet
 Community

PiperTTS-IT: Optimized for Qualcomm Devices

PiperTTS is a high-quality multi-lingual text-to-speech library.

This is based on the implementation of PiperTTS-IT 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-IT 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-IT 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-IT on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.audio_generation

Model Stats:

  • Model checkpoint: rhasspy/piper-voices
  • 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 0.314 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X Elite 0.416 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.306 ms 0 - 8 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8275 1.005 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 0.397 ms 0 - 2 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8775P 0.65 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8650P 0.65 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8255P 0.65 ms 0 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.789 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 0.271 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS9075 0.522 ms 1 - 3 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 0.589 ms 1 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA7255P 1.005 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8750 0.271 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS7181 0.416 ms 1 - 1 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.486 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X2 Elite 0.613 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X Elite 1.063 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.632 ms 0 - 8 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8275 2.799 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 0.891 ms 0 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8775P 1.255 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8650P 1.255 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8255P 1.255 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8295P 1.735 ms 0 - 6 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 0.524 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS9075 1.117 ms 2 - 4 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 1.345 ms 0 - 7 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA7255P 2.799 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8750 0.524 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS7181 1.063 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 1.811 ms 0 - 10 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 1.742 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 3.087 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 2.208 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® QCS8275 8.057 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 3.018 ms 0 - 1 MB NPU
decoder VOICE_AI float Qualcomm® SA8775P 3.457 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8650P 3.457 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8255P 3.457 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 3.984 ms 0 - 6 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 1.983 ms 0 - 13 MB NPU
decoder VOICE_AI float Qualcomm® QCS9075 3.336 ms 2 - 4 MB NPU
decoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 4.386 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 8.057 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® QCS8750 1.983 ms 0 - 13 MB NPU
decoder VOICE_AI float Qualcomm® QCS7181 3.087 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 17.389 ms 0 - 10 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 18.706 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 29.698 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 23.139 ms 0 - 7 MB NPU
encoder VOICE_AI float Qualcomm® QCS8275 47.271 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 31.738 ms 0 - 2 MB NPU
encoder VOICE_AI float Qualcomm® SA8775P 32.965 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 32.965 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 32.965 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 35.247 ms 0 - 6 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 19.222 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS9075 33.175 ms 0 - 3 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 38.555 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 47.271 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8750 19.222 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS7181 29.698 ms 0 - 0 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 8.932 ms 4 - 14 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.594 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® X Elite 15.945 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 11.073 ms 4 - 11 MB NPU
flow VOICE_AI float Qualcomm® QCS8275 39.629 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® QCS8550 (Proxy) 15.086 ms 4 - 5 MB NPU
flow VOICE_AI float Qualcomm® SA8775P 17.314 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8650P 17.314 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8255P 17.314 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.773 ms 0 - 6 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 8.932 ms 1 - 14 MB NPU
flow VOICE_AI float Qualcomm® QCS9075 17.716 ms 6 - 12 MB NPU
flow VOICE_AI float Qualcomm® QCS8450 (Proxy) 18.247 ms 4 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA7255P 39.629 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® QCS8750 8.932 ms 1 - 14 MB NPU
flow VOICE_AI float Qualcomm® QCS7181 15.945 ms 4 - 4 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 6.587 ms 0 - 11 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.127 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® X Elite 11.298 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 3 Mobile 7.676 ms 0 - 8 MB NPU
sdp VOICE_AI float Qualcomm® QCS8275 20.594 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® QCS8550 (Proxy) 10.541 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® SA8775P 11.106 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8650P 11.106 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8255P 11.106 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 12.664 ms 0 - 6 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 6.961 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® QCS9075 11.274 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® QCS8450 (Proxy) 11.21 ms 1 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA7255P 20.594 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® QCS8750 6.961 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® QCS7181 11.298 ms 0 - 0 MB NPU

License

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

References

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