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MeloTTS-ZH

Text-to-Audio
PyTorch
real_time
android
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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.

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
PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X2 Elite QAIRT 2.42, ONNX Runtime 1.24.1 Download
PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X Elite QAIRT 2.42, ONNX Runtime 1.24.1 Download
PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Gen 3 Mobile QAIRT 2.42, ONNX Runtime 1.24.1 Download
PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS8550 (Proxy) QAIRT 2.42, ONNX Runtime 1.24.1 Download
PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile QAIRT 2.42, ONNX Runtime 1.24.1 Download
PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile QAIRT 2.42, ONNX Runtime 1.24.1 Download
PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS9075 QAIRT 2.42, ONNX Runtime 1.24.1 Download
QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X2 Elite QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X Elite QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Gen 3 Mobile QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8550 (Proxy) QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8775P QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA7255P QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8295P QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS9075 QAIRT 2.43 Download
QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8450 (Proxy) QAIRT 2.43 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:

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

Performance Summary

Model Runtime Precision Chipset Inference Time (ms) Peak Memory Range (MB) Primary Compute Unit
BertWrapper_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X2 Elite 3.067 ms 293 - 293 MB NPU
BertWrapper_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X Elite 7.339 ms 293 - 293 MB NPU
BertWrapper_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Gen 3 Mobile 4.735 ms 0 - 12 MB NPU
BertWrapper_ZH PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS8550 (Proxy) 6.767 ms 0 - 322 MB NPU
BertWrapper_ZH PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS9075 8.892 ms 1 - 4 MB NPU
BertWrapper_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 3.465 ms 0 - 11 MB NPU
BertWrapper_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 2.714 ms 0 - 10 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X2 Elite 3.344 ms 0 - 0 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X Elite 7.312 ms 0 - 0 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Gen 3 Mobile 4.735 ms 0 - 7 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8275 (Proxy) 30.055 ms 0 - 8 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8550 (Proxy) 6.751 ms 0 - 1 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8775P 41.677 ms 0 - 7 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS9075 8.854 ms 2 - 4 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8450 (Proxy) 10.246 ms 0 - 9 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA7255P 30.055 ms 0 - 8 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8295P 11.322 ms 0 - 5 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 3.467 ms 0 - 13 MB NPU
BertWrapper_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 2.727 ms 0 - 9 MB NPU
Decoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X2 Elite 38.457 ms 20 - 20 MB NPU
Decoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X Elite 76.567 ms 18 - 18 MB NPU
Decoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Gen 3 Mobile 57.018 ms 0 - 8 MB NPU
Decoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS8550 (Proxy) 77.921 ms 0 - 22 MB NPU
Decoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS9075 76.506 ms 0 - 3 MB NPU
Decoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 47.321 ms 1 - 12 MB NPU
Decoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 40.983 ms 0 - 10 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X2 Elite 39.09 ms 0 - 0 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X Elite 77.001 ms 0 - 0 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Gen 3 Mobile 57.808 ms 0 - 8 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8275 (Proxy) 127.303 ms 0 - 9 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8550 (Proxy) 79.08 ms 0 - 2 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8775P 330.556 ms 0 - 9 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS9075 76.95 ms 0 - 2 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8450 (Proxy) 106.196 ms 3 - 11 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA7255P 127.303 ms 0 - 9 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8295P 92.924 ms 0 - 6 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 46.363 ms 0 - 9 MB NPU
Decoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 41.104 ms 0 - 10 MB NPU
Encoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X2 Elite 19.597 ms 14 - 14 MB NPU
Encoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X Elite 32.705 ms 13 - 13 MB NPU
Encoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Gen 3 Mobile 25.034 ms 4 - 11 MB NPU
Encoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS8550 (Proxy) 33.374 ms 0 - 17 MB NPU
Encoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS9075 39.259 ms 4 - 6 MB NPU
Encoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 20.93 ms 3 - 14 MB NPU
Encoder_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 17.456 ms 4 - 14 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X2 Elite 19.826 ms 4 - 4 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X Elite 32.492 ms 4 - 4 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Gen 3 Mobile 24.81 ms 4 - 11 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8275 (Proxy) 77.757 ms 2 - 10 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8550 (Proxy) 34.537 ms 4 - 5 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8775P 39.315 ms 2 - 10 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS9075 39.262 ms 4 - 9 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8450 (Proxy) 48.783 ms 4 - 13 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA7255P 77.757 ms 2 - 10 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8295P 43.802 ms 0 - 5 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 19.943 ms 2 - 15 MB NPU
Encoder_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 17.774 ms 4 - 14 MB NPU
Flow_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X2 Elite 84.263 ms 31 - 31 MB NPU
Flow_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® X Elite 147.785 ms 30 - 30 MB NPU
Flow_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Gen 3 Mobile 118.732 ms 6 - 13 MB NPU
Flow_ZH PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS8550 (Proxy) 159.637 ms 0 - 37 MB NPU
Flow_ZH PRECOMPILED_QNN_ONNX mixed_with_float Qualcomm® QCS9075 149.9 ms 4 - 10 MB NPU
Flow_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 102.346 ms 4 - 10 MB NPU
Flow_ZH PRECOMPILED_QNN_ONNX mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 91.546 ms 6 - 16 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X2 Elite 85.627 ms 4 - 4 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® X Elite 147.313 ms 4 - 4 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Gen 3 Mobile 120.757 ms 4 - 11 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8275 (Proxy) 278.891 ms 1 - 10 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8550 (Proxy) 156.444 ms 4 - 6 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8775P 150.668 ms 1 - 10 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS9075 149.706 ms 6 - 12 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® QCS8450 (Proxy) 173.669 ms 4 - 13 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA7255P 278.891 ms 1 - 10 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Qualcomm® SA8295P 188.856 ms 1 - 6 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 102.441 ms 1 - 14 MB NPU
Flow_ZH QNN_CONTEXT_BINARY mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 91.038 ms 4 - 13 MB NPU

License

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

References

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