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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.

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-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 0.307 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X Elite 0.422 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.315 ms 0 - 8 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 0.575 ms 1 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8275 0.983 ms 0 - 9 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 0.65 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® QCS8450 0.575 ms 1 - 10 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 0.52 ms 1 - 3 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 0.422 ms 1 - 1 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.271 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA7255P 0.983 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.829 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Mobile 0.271 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.274 ms 0 - 9 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 1.063 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.638 ms 0 - 7 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 1.342 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8275 2.781 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.906 ms 0 - 1 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8775P 1.276 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8650P 1.276 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8255P 1.276 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8450 1.342 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 1.14 ms 2 - 4 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 1.063 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 0.525 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA7255P 2.781 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8295P 1.737 ms 0 - 6 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Mobile 0.525 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 0.486 ms 0 - 13 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 1.724 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 2.193 ms 0 - 7 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 4.376 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8275 8.065 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 3.01 ms 0 - 1 MB NPU
decoder VOICE_AI float Qualcomm® SA8775P 3.487 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8650P 3.487 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® SA8255P 3.487 ms 0 - 10 MB NPU
decoder VOICE_AI float Qualcomm® QCS8450 4.376 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 3.332 ms 0 - 2 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 3.089 ms 0 - 0 MB NPU
decoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 1.899 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 8.065 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 3.99 ms 0 - 5 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Mobile 1.899 ms 0 - 9 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 1.822 ms 0 - 8 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 18.599 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 30.052 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 23.103 ms 0 - 7 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 1 Mobile 40.218 ms 1 - 9 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8275 47.342 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 31.454 ms 1 - 3 MB NPU
encoder VOICE_AI float Qualcomm® SA8775P 32.981 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 32.981 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 32.981 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 40.218 ms 1 - 9 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 39.889 ms 2 - 5 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 30.052 ms 0 - 0 MB NPU
encoder VOICE_AI float Qualcomm® Dragonwing™ Q-8750 18.899 ms 0 - 13 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 47.342 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 35.24 ms 0 - 6 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Mobile 18.899 ms 0 - 13 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 17.111 ms 0 - 9 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.488 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® X Elite 15.873 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 11.055 ms 4 - 12 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 1 Mobile 18.27 ms 3 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ QCS8275 39.826 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 15.15 ms 4 - 5 MB NPU
flow VOICE_AI float Qualcomm® SA8775P 17.309 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8650P 17.309 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8255P 17.309 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® QCS8450 18.27 ms 3 - 13 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 17.364 ms 4 - 10 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 15.873 ms 4 - 4 MB NPU
flow VOICE_AI float Qualcomm® Dragonwing™ Q-8750 8.948 ms 3 - 12 MB NPU
flow VOICE_AI float Qualcomm® SA7255P 39.826 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.74 ms 0 - 6 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Mobile 8.948 ms 3 - 12 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 8.979 ms 3 - 12 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.121 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® X Elite 11.276 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 11.2 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ QCS8275 20.566 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ QCS8550 (Proxy) 10.442 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® SA8775P 11.091 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8650P 11.091 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8255P 11.091 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® QCS8450 11.2 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-9075 10.926 ms 2 - 4 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ IQ-X7181 11.276 ms 0 - 0 MB NPU
sdp VOICE_AI float Qualcomm® Dragonwing™ Q-8750 6.968 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® SA7255P 20.566 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 12.671 ms 0 - 6 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Mobile 6.968 ms 0 - 9 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 6.615 ms 0 - 10 MB NPU

License

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

References

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