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MeloTTS-EN

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

MeloTTS-EN: 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-EN 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-EN 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-EN 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-EN 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-English
  • Model size (bert_wrapper) (float): 360 MB
  • Model size (decoder) (float): 55.5 MB
  • Model size (encoder) (float): 31.8 MB
  • Model size (flow) (float): 76.9 MB
  • Model size (t5_decoder) (float): 21.8 MB
  • Model size (t5_encoder) (float): 57.5 MB
  • Number of parameters (bert_wrapper): 94.5M
  • Number of parameters (decoder): 14.5M
  • Number of parameters (encoder): 8.30M
  • Number of parameters (flow): 20.1M
  • Number of parameters (t5_decoder): 5.72M
  • Number of parameters (t5_encoder): 15.1M

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 2.63 ms 0 - 9 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 3.304 ms 0 - 7 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® X2 Elite 3.312 ms 0 - 0 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® X Elite 7.611 ms 0 - 0 MB NPU
bert_wrapper VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 4.99 ms 0 - 7 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 9.912 ms 0 - 4 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 7.019 ms 0 - 2 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® SA8650P 9.305 ms 0 - 9 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® SA8255P 9.305 ms 0 - 9 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 8.958 ms 2 - 5 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 7.611 ms 0 - 0 MB NPU
bert_wrapper VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 3.304 ms 0 - 7 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 36.797 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 42.649 ms 0 - 8 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 36.233 ms 0 - 0 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® X Elite 72.345 ms 1 - 1 MB NPU
decoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 51.644 ms 0 - 7 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 64.455 ms 0 - 3 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 72.711 ms 1 - 2 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8650P 83.873 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® SA8255P 83.873 ms 0 - 9 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 71.382 ms 2 - 4 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 72.345 ms 1 - 1 MB NPU
decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 42.649 ms 0 - 8 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 15.45 ms 2 - 10 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 16.467 ms 2 - 10 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 15.313 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® X Elite 26.278 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 18.401 ms 4 - 10 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 27.176 ms 4 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 26.009 ms 4 - 5 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8650P 43.368 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® SA8255P 43.368 ms 2 - 11 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 27.374 ms 4 - 10 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 26.278 ms 4 - 4 MB NPU
encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 16.467 ms 2 - 10 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 31.848 ms 2 - 11 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 42.109 ms 2 - 10 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® X2 Elite 31.855 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® X Elite 74.812 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 51.783 ms 2 - 9 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 69.107 ms 2 - 7 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 73.201 ms 3 - 4 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8650P 128.352 ms 2 - 7 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® SA8255P 128.352 ms 2 - 7 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 72.83 ms 2 - 6 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 74.812 ms 2 - 2 MB NPU
flow VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 42.109 ms 2 - 10 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 0.267 ms 0 - 8 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 0.276 ms 0 - 12 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 0.36 ms 1 - 1 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® X Elite 0.448 ms 1 - 1 MB NPU
t5_decoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 0.335 ms 0 - 7 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 0.586 ms 1 - 4 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.413 ms 1 - 2 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® SA8650P 0.652 ms 0 - 5 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® SA8255P 0.652 ms 0 - 5 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 0.525 ms 1 - 3 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 0.448 ms 1 - 1 MB NPU
t5_decoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 0.276 ms 0 - 12 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite Gen 5 For Galaxy Mobile 0.493 ms 0 - 8 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® 8 Elite For Galaxy Mobile 0.522 ms 0 - 8 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® X2 Elite 0.63 ms 0 - 0 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® X Elite 1.043 ms 0 - 0 MB NPU
t5_encoder VOICE_AI mixed_with_float Snapdragon® 8 Gen 3 Mobile 0.625 ms 0 - 7 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-8275 1.072 ms 0 - 3 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ QCS8550 (Proxy) 0.88 ms 0 - 2 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® SA8650P 1.25 ms 0 - 10 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® SA8255P 1.25 ms 0 - 10 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-9075 1.121 ms 2 - 4 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ IQ-X7181 1.043 ms 0 - 0 MB NPU
t5_encoder VOICE_AI mixed_with_float Qualcomm® Dragonwing™ Q-8750 0.522 ms 0 - 8 MB NPU

License

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

References

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