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MeloTTS-ZH

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

MeloTTS-ZH: Optimized for Qualcomm Devices

MeloTTS is a high-quality multi-lingual text-to-speech library for English, Chinese and Spanish language.

This is based on the implementation of MeloTTS-ZH 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 MeloTTS-ZH 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 mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile QAIRT 2.50 Download
VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile QAIRT 2.50 Download
VOICE_AI mixed_with_float Snapdragon® X2 Elite QAIRT 2.50 Download
VOICE_AI mixed_with_float Snapdragon® X Elite QAIRT 2.50 Download
VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile QAIRT 2.50 Download
VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 QAIRT 2.50 Download
VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) QAIRT 2.50 Download
VOICE_AI mixed_with_float Qualcomm® SA8775P QAIRT 2.50 Download
VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 QAIRT 2.50 Download
VOICE_AI mixed_with_float Qualcomm® SA7255P QAIRT 2.50 Download

For more device-specific assets and performance metrics, visit MeloTTS-ZH 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 MeloTTS-ZH on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.audio_generation

Model Stats:

  • Max decoded sequence length: 512 tokens
  • Model checkpoint: myshell-ai/MeloTTS-Chinese
  • Model size (bert_wrapper) (float): 581 MB
  • Model size (decoder) (float): 55.5 MB
  • Model size (encoder) (float): 31.9 MB
  • Model size (flow) (float): 76.9 MB
  • Number of parameters (bert_wrapper): 152M
  • Number of parameters (decoder): 14.5M
  • Number of parameters (encoder): 8.34M
  • Number of parameters (flow): 20.1M

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
bert_wrapper VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 2.624 ms 0 - 7 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 3.305 ms 0 - 7 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® X2 Elite 3.289 ms 0 - 0 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® X Elite 7.617 ms 0 - 0 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 5.08 ms 0 - 7 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 9.915 ms 0 - 4 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 7.041 ms 0 - 1 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® SA8650P 9.295 ms 0 - 9 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® SA8255P 9.295 ms 0 - 9 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 8.952 ms 0 - 3 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 7.617 ms 0 - 0 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 3.305 ms 0 - 7 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 36.897 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 43.044 ms 0 - 8 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 36.247 ms 1 - 1 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® X Elite 72.368 ms 1 - 1 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 51.949 ms 2 - 10 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 64.655 ms 0 - 3 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 72.794 ms 1 - 2 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8650P 83.902 ms 0 - 10 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8255P 83.902 ms 0 - 10 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 71.285 ms 0 - 2 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 72.368 ms 1 - 1 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 43.044 ms 0 - 8 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 15.471 ms 2 - 10 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 16.417 ms 2 - 10 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 15.209 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® X Elite 26.349 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 18.625 ms 4 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 27.287 ms 4 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 26.078 ms 4 - 5 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8650P 43.115 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8255P 43.115 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 28.245 ms 6 - 12 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 26.349 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 16.417 ms 2 - 10 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 31.86 ms 2 - 11 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 41.877 ms 2 - 10 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® X2 Elite 31.904 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® X Elite 74.781 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 51.76 ms 2 - 10 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 68.896 ms 2 - 7 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 73.546 ms 2 - 4 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8650P 128.354 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8255P 128.354 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 72.818 ms 2 - 7 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 74.781 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 41.877 ms 2 - 10 MB NPU

License

  • The license for the original implementation of MeloTTS-ZH can be found here.

References

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