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MeloTTS-ES

Text-to-Audio
PyTorch
real_time
android
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MeloTTS-ES: 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-ES 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-ES 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® QCS8275 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 Snapdragon® 8 Elite Mobile QAIRT 2.45 Download
VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile QAIRT 2.45 Download
VOICE_AI mixed_with_float Qualcomm® SA7255P QAIRT 2.45 Download
VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 QAIRT 2.45 Download

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

Model Details

Model Type: Model_use_case.audio_generation

Model Stats:

  • Model checkpoint: myshell-ai/MeloTTS-Spanish
  • Max decoded sequence length: 512 tokens
  • Number of parameters (encoder): 8.36M
  • Model size (encoder) (float): 32.0 MB
  • Number of parameters (flow): 20.1M
  • Model size (flow) (float): 76.9 MB
  • Number of parameters (decoder): 14.5M
  • Model size (decoder) (float): 55.5 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
decoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 40.9 ms 1 - 1 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® X Elite 83.346 ms 1 - 1 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 60.759 ms 0 - 7 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® QCS8275 134.711 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 85.908 ms 1 - 2 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8775P 83.898 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8650P 83.898 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8255P 83.898 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 42.433 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA7255P 134.711 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile 47.702 ms 0 - 11 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 47.702 ms 0 - 11 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 83.346 ms 1 - 1 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 83.334 ms 0 - 2 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 25.615 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® X Elite 40.753 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 30.577 ms 4 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® QCS8275 66.09 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 41.203 ms 4 - 5 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8775P 43.311 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8650P 43.311 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8255P 43.311 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 23.899 ms 2 - 10 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA7255P 66.09 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile 25.304 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 25.304 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 40.753 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 43.288 ms 4 - 9 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® X2 Elite 67.515 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® X Elite 129.267 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 100.023 ms 2 - 10 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® QCS8275 245.487 ms 2 - 11 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 130.704 ms 3 - 5 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8775P 128.626 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8650P 128.626 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8255P 128.626 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 71.126 ms 2 - 10 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA7255P 245.487 ms 2 - 11 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile 81.138 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 81.138 ms 2 - 12 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 129.267 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 127.929 ms 2 - 6 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 0.325 ms 1 - 1 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® X Elite 0.43 ms 1 - 1 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 0.309 ms 0 - 7 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® QCS8275 0.985 ms 0 - 8 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.398 ms 1 - 3 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® SA8775P 0.655 ms 0 - 10 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® SA8650P 0.655 ms 0 - 10 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® SA8255P 0.655 ms 0 - 10 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 0.267 ms 0 - 10 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® SA7255P 0.985 ms 0 - 8 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile 0.268 ms 0 - 13 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 0.268 ms 0 - 13 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 0.43 ms 1 - 1 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 0.519 ms 1 - 3 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 0.628 ms 0 - 0 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® X Elite 1.048 ms 0 - 0 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 0.636 ms 0 - 7 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® QCS8275 2.803 ms 0 - 8 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.893 ms 0 - 2 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® SA8775P 1.264 ms 0 - 10 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® SA8650P 1.264 ms 0 - 10 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® SA8255P 1.264 ms 0 - 10 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 Mobile 0.488 ms 0 - 9 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® SA7255P 2.803 ms 0 - 8 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Mobile 0.521 ms 0 - 9 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 0.521 ms 0 - 9 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 1.048 ms 0 - 0 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 1.136 ms 0 - 2 MB NPU

License

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

References

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