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PiperTTS-DE

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

PiperTTS-DE: Optimized for Qualcomm Devices

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

This is based on the implementation of PiperTTS-DE 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-DE 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-DE 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-DE 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 0.257 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® X2 Elite 0.316 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 0.308 ms 0 - 8 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8275 1.039 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® SA8775P 0.647 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8650P 0.647 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8255P 0.647 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA8295P 0.786 ms 0 - 6 MB NPU
charsiu_decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 0.278 ms 0 - 13 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS9075 0.511 ms 3 - 5 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 0.583 ms 1 - 11 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® SA7255P 1.039 ms 0 - 9 MB NPU
charsiu_decoder VOICE_AI float Qualcomm® QCS8750 0.278 ms 0 - 13 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 0.671 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® X Elite 1.064 ms 0 - 0 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 0.635 ms 0 - 7 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8275 2.786 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 0.888 ms 0 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8775P 1.273 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8650P 1.273 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8255P 1.273 ms 0 - 10 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA8295P 1.73 ms 0 - 6 MB NPU
charsiu_encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 0.526 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS9075 1.122 ms 0 - 2 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 1.348 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® SA7255P 2.786 ms 0 - 9 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS8750 0.526 ms 0 - 13 MB NPU
charsiu_encoder VOICE_AI float Qualcomm® QCS7181 1.064 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 1.814 ms 0 - 9 MB NPU
decoder VOICE_AI float Snapdragon® X2 Elite 1.772 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® X Elite 3.094 ms 0 - 0 MB NPU
decoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 2.207 ms 0 - 7 MB NPU
decoder VOICE_AI float Qualcomm® QCS8275 8.043 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 3.022 ms 0 - 1 MB NPU
decoder VOICE_AI float Qualcomm® SA8775P 3.479 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA8650P 3.479 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA8255P 3.479 ms 0 - 9 MB NPU
decoder VOICE_AI float Qualcomm® SA8295P 3.973 ms 0 - 6 MB NPU
decoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 1.904 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) 4.375 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® SA7255P 8.043 ms 0 - 8 MB NPU
decoder VOICE_AI float Qualcomm® QCS8750 1.904 ms 0 - 13 MB NPU
decoder VOICE_AI float Qualcomm® QCS7181 3.094 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 17.472 ms 0 - 9 MB NPU
encoder VOICE_AI float Snapdragon® X2 Elite 18.552 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® X Elite 29.871 ms 0 - 0 MB NPU
encoder VOICE_AI float Snapdragon® 8 Gen 3 Mobile 23.127 ms 0 - 7 MB NPU
encoder VOICE_AI float Qualcomm® QCS8275 47.207 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8550 (Proxy) 30.403 ms 0 - 1 MB NPU
encoder VOICE_AI float Qualcomm® SA8775P 33.01 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8650P 33.01 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8255P 33.01 ms 0 - 10 MB NPU
encoder VOICE_AI float Qualcomm® SA8295P 34.965 ms 9 - 15 MB NPU
encoder VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 19.492 ms 0 - 13 MB NPU
encoder VOICE_AI float Qualcomm® QCS9075 32.708 ms 0 - 3 MB NPU
encoder VOICE_AI float Qualcomm® QCS8450 (Proxy) 38.559 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® SA7255P 47.207 ms 0 - 9 MB NPU
encoder VOICE_AI float Qualcomm® QCS8750 19.492 ms 0 - 13 MB NPU
encoder VOICE_AI float Qualcomm® QCS7181 29.871 ms 0 - 0 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 8.917 ms 4 - 13 MB NPU
flow VOICE_AI float Snapdragon® X2 Elite 9.669 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® X Elite 16.112 ms 4 - 4 MB NPU
flow VOICE_AI float Snapdragon® 8 Gen 3 Mobile 11.06 ms 4 - 11 MB NPU
flow VOICE_AI float Qualcomm® QCS8275 39.972 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® QCS8550 (Proxy) 15.078 ms 4 - 5 MB NPU
flow VOICE_AI float Qualcomm® SA8775P 17.196 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8650P 17.196 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8255P 17.196 ms 1 - 11 MB NPU
flow VOICE_AI float Qualcomm® SA8295P 18.786 ms 0 - 6 MB NPU
flow VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 8.907 ms 3 - 16 MB NPU
flow VOICE_AI float Qualcomm® QCS9075 17.792 ms 4 - 10 MB NPU
flow VOICE_AI float Qualcomm® QCS8450 (Proxy) 18.299 ms 4 - 12 MB NPU
flow VOICE_AI float Qualcomm® SA7255P 39.972 ms 1 - 10 MB NPU
flow VOICE_AI float Qualcomm® QCS8750 8.907 ms 3 - 16 MB NPU
flow VOICE_AI float Qualcomm® QCS7181 16.112 ms 4 - 4 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite Gen 5 Mobile 6.596 ms 0 - 11 MB NPU
sdp VOICE_AI float Snapdragon® X2 Elite 7.107 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® X Elite 11.235 ms 0 - 0 MB NPU
sdp VOICE_AI float Snapdragon® 8 Gen 3 Mobile 7.683 ms 0 - 8 MB NPU
sdp VOICE_AI float Qualcomm® QCS8275 20.573 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS8550 (Proxy) 10.558 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® SA8775P 11.119 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8650P 11.119 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8255P 11.119 ms 0 - 10 MB NPU
sdp VOICE_AI float Qualcomm® SA8295P 12.687 ms 0 - 6 MB NPU
sdp VOICE_AI float Snapdragon® 8 Elite For Galaxy Mobile 6.955 ms 0 - 13 MB NPU
sdp VOICE_AI float Qualcomm® QCS9075 10.905 ms 0 - 2 MB NPU
sdp VOICE_AI float Qualcomm® QCS8450 (Proxy) 11.215 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® SA7255P 20.573 ms 0 - 9 MB NPU
sdp VOICE_AI float Qualcomm® QCS8750 6.955 ms 0 - 13 MB NPU
sdp VOICE_AI float Qualcomm® QCS7181 11.235 ms 0 - 0 MB NPU

License

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

References

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