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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® X2 Elite QAIRT 2.45 Download
VOICE_AI mixed_with_float Snapdragon® X Elite QAIRT 2.45 Download
VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile QAIRT 2.45 Download
VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 QAIRT 2.45 Download
VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) QAIRT 2.45 Download
VOICE_AI mixed_with_float Qualcomm® SA8775P QAIRT 2.45 Download
VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 QAIRT 2.45 Download
VOICE_AI mixed_with_float Qualcomm® SA7255P QAIRT 2.45 Download
VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile QAIRT 2.45 Download
VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile QAIRT 2.45 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® X2 Elite 3.268 ms 0 - 0 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® X Elite 7.753 ms 0 - 0 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 5.067 ms 0 - 7 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 30.616 ms 0 - 9 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 7.107 ms 0 - 1 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® SA8775P 9.284 ms 0 - 10 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® SA8650P 9.284 ms 0 - 10 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® SA8255P 9.284 ms 0 - 10 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 9.012 ms 0 - 2 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 7.753 ms 0 - 0 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 3.34 ms 0 - 13 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® SA7255P 30.616 ms 0 - 9 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile 3.34 ms 0 - 13 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 2.691 ms 0 - 8 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 40.451 ms 0 - 0 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® X Elite 82.728 ms 0 - 0 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 60.613 ms 0 - 7 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 134.556 ms 0 - 10 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 87.247 ms 1 - 2 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8775P 83.852 ms 0 - 10 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8650P 83.852 ms 0 - 10 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8255P 83.852 ms 0 - 10 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 94.677 ms 0 - 2 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 82.728 ms 0 - 0 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 48.08 ms 0 - 13 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA7255P 134.556 ms 0 - 10 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile 48.08 ms 0 - 13 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 42.575 ms 0 - 8 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 25.283 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® X Elite 40.169 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 30.183 ms 4 - 12 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 66.311 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 40.549 ms 4 - 6 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8775P 43.166 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8650P 43.166 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8255P 43.166 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 42.726 ms 4 - 9 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 40.169 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 25.45 ms 2 - 12 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA7255P 66.311 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile 25.45 ms 2 - 12 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 23.867 ms 2 - 10 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® X2 Elite 67.358 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® X Elite 129.204 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 99.141 ms 4 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 245.546 ms 2 - 11 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 132.415 ms 3 - 4 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8775P 128.681 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8650P 128.681 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8255P 128.681 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 127.428 ms 4 - 7 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 129.204 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 81.895 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA7255P 245.546 ms 2 - 11 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile 81.895 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 71.056 ms 2 - 11 MB NPU

License

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

References

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