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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® 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® 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® QCS9075 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® X2 Elite 0.306 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X Elite 0.413 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.324 ms 0 - 7 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 0.576 ms 1 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8275 1.005 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 0.402 ms 0 - 2 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8450 0.576 ms 1 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA7255P 1.005 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Mobile 0.269 ms 0 - 14 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.818 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.284 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS9075 0.514 ms 1 - 3 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8750 0.269 ms 0 - 14 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS7181 0.413 ms 1 - 1 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 1.06 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 1.34 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8275 2.808 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 0.9 ms 0 - 1 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8450 1.34 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA7255P 2.808 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Mobile 0.533 ms 0 - 12 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8295P 1.73 ms 0 - 6 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.487 ms 0 - 8 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS9075 1.119 ms 0 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8750 0.533 ms 0 - 12 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS7181 1.06 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 1.736 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 3.081 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 2.209 ms 0 - 7 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 4.369 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® QCS8275 8.107 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 3.019 ms 0 - 1 MB NPU
decoder VOICE_AI float Qualcomm® QCS8450 4.369 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 8.107 ms 0 - 8 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Mobile 1.893 ms 0 - 13 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 3.991 ms 0 - 6 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 1.813 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® QCS9075 3.334 ms 2 - 4 MB NPU
decoder VOICE_AI float Qualcomm® QCS8750 1.893 ms 0 - 13 MB NPU
decoder VOICE_AI float Qualcomm® QCS7181 3.081 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 18.776 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 29.973 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 23.28 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 38.361 ms 1 - 10 MB NPU
encoder VOICE_AI float Qualcomm® QCS8275 47.29 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 32.863 ms 0 - 1 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 38.361 ms 1 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 47.29 ms 0 - 9 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Mobile 19.192 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 35.211 ms 0 - 6 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 17.04 ms 0 - 8 MB NPU
encoder VOICE_AI float Qualcomm® QCS9075 32.669 ms 2 - 5 MB NPU
encoder VOICE_AI float Qualcomm® QCS8750 19.192 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS7181 29.973 ms 0 - 0 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.599 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® X Elite 15.813 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 11.128 ms 4 - 12 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 1 Mobile 18.246 ms 4 - 13 MB NPU
flow VOICE_AI float Qualcomm® QCS8275 39.969 ms 2 - 10 MB NPU
flow VOICE_AI float Qualcomm® QCS8550 (Proxy) 15.133 ms 4 - 5 MB NPU
flow VOICE_AI float Qualcomm® QCS8450 18.246 ms 4 - 13 MB NPU
flow VOICE_AI float Qualcomm® SA7255P 39.969 ms 2 - 10 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Mobile 8.949 ms 1 - 14 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.755 ms 0 - 6 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 8.914 ms 3 - 11 MB NPU
flow VOICE_AI float Qualcomm® QCS9075 18.272 ms 4 - 10 MB NPU
flow VOICE_AI float Qualcomm® QCS8750 8.949 ms 1 - 14 MB NPU
flow VOICE_AI float Qualcomm® QCS7181 15.813 ms 4 - 4 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.105 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® X Elite 11.241 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 3 Mobile 7.686 ms 0 - 8 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 1 Mobile 11.158 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS8275 20.584 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS8550 (Proxy) 10.523 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® QCS8450 11.158 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® SA7255P 20.584 ms 0 - 9 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Mobile 6.963 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 12.661 ms 0 - 6 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 6.612 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS9075 11.016 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® QCS8750 6.963 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS7181 11.241 ms 0 - 0 MB NPU

License

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

References

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