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qualcomm/
MeloTTS-ES

Name: MeloTTS-ES
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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® 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-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:

Max decoded sequence length: 512 tokens
Model checkpoint: myshell-ai/MeloTTS-Spanish
Model size (decoder) (float): 55.5 MB
Model size (encoder) (float): 32.0 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 (decoder): 14.5M
Number of parameters (encoder): 8.36M
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
decoder	VOICE_AI	mixed_with_float	Snapdragon® X2 Elite	40.808 ms	1 - 1 MB	NPU
decoder	VOICE_AI	mixed_with_float	Snapdragon® X Elite	82.732 ms	1 - 1 MB	NPU
decoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Gen 3 Mobile	60.733 ms	0 - 7 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	74.265 ms	0 - 2 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	134.673 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	85.978 ms	0 - 2 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® SA8775P	83.846 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® SA8650P	83.846 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® SA8255P	83.846 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-9075	82.78 ms	0 - 2 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-X7181	82.732 ms	1 - 1 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ Q-8750	48.338 ms	0 - 13 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® SA7255P	134.673 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Mobile	48.338 ms	0 - 13 MB	NPU
decoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Gen 5 Mobile	42.495 ms	0 - 10 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® X2 Elite	24.866 ms	4 - 4 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® X Elite	40.589 ms	4 - 4 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Gen 3 Mobile	30.505 ms	4 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	39.107 ms	4 - 10 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	66.642 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	41.735 ms	4 - 5 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® SA8775P	43.376 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® SA8650P	43.376 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® SA8255P	43.376 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-9075	42.814 ms	4 - 9 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-X7181	40.589 ms	4 - 4 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ Q-8750	25.272 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® SA7255P	66.642 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Mobile	25.272 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Gen 5 Mobile	23.828 ms	2 - 10 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® X2 Elite	67.288 ms	2 - 2 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® X Elite	128.874 ms	2 - 2 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® 8 Gen 3 Mobile	99.477 ms	4 - 12 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	122.33 ms	2 - 6 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	245.537 ms	2 - 11 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	130.928 ms	3 - 4 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® SA8775P	128.72 ms	2 - 12 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® SA8650P	128.72 ms	2 - 12 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® SA8255P	128.72 ms	2 - 12 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-9075	155.149 ms	1 - 5 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-X7181	128.874 ms	2 - 2 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ Q-8750	81.965 ms	2 - 15 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® SA7255P	245.537 ms	2 - 11 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Mobile	81.965 ms	2 - 15 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Gen 5 Mobile	71.031 ms	2 - 11 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Snapdragon® X2 Elite	0.339 ms	1 - 1 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Snapdragon® X Elite	0.416 ms	1 - 1 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Gen 3 Mobile	0.316 ms	0 - 8 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	0.573 ms	1 - 3 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	0.992 ms	0 - 9 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.395 ms	0 - 2 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® SA8775P	0.651 ms	0 - 10 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® SA8650P	0.651 ms	0 - 10 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® SA8255P	0.651 ms	0 - 10 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-9075	0.512 ms	3 - 5 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-X7181	0.416 ms	1 - 1 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ Q-8750	0.279 ms	0 - 13 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Qualcomm® SA7255P	0.992 ms	0 - 9 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Mobile	0.279 ms	0 - 13 MB	NPU
t5_decoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Gen 5 Mobile	0.287 ms	0 - 11 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Snapdragon® X2 Elite	0.64 ms	0 - 0 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Snapdragon® X Elite	1.05 ms	0 - 0 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Gen 3 Mobile	0.632 ms	0 - 7 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	1.089 ms	0 - 2 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	2.839 ms	0 - 9 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.904 ms	0 - 1 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® SA8775P	1.265 ms	0 - 10 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® SA8650P	1.265 ms	0 - 10 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® SA8255P	1.265 ms	0 - 10 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-9075	1.142 ms	0 - 2 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-X7181	1.05 ms	0 - 0 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ Q-8750	0.525 ms	0 - 13 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Qualcomm® SA7255P	2.839 ms	0 - 9 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Mobile	0.525 ms	0 - 13 MB	NPU
t5_encoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Gen 5 Mobile	0.489 ms	0 - 8 MB	NPU

License

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

References

Community

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qualcomm/MeloTTS-ES