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qualcomm/
MeloTTS-ZH

Name: MeloTTS-ZH
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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.

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	3.271 ms	0 - 0 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Snapdragon® X Elite	7.715 ms	0 - 0 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Snapdragon® 8 Gen 3 Mobile	5.128 ms	0 - 7 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	9.981 ms	0 - 3 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	30.645 ms	0 - 10 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	7.116 ms	0 - 1 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® SA8775P	9.309 ms	0 - 10 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® SA8650P	9.309 ms	0 - 10 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® SA8255P	9.309 ms	0 - 10 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-9075	9.017 ms	0 - 2 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-X7181	7.715 ms	0 - 0 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ Q-8750	3.361 ms	0 - 12 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Qualcomm® SA7255P	30.645 ms	0 - 10 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Mobile	3.361 ms	0 - 12 MB	NPU
bert_wrapper	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Gen 5 Mobile	2.693 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Snapdragon® X2 Elite	41.107 ms	1 - 1 MB	NPU
decoder	VOICE_AI	mixed_with_float	Snapdragon® X Elite	82.927 ms	1 - 1 MB	NPU
decoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Gen 3 Mobile	61.168 ms	2 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	74.643 ms	0 - 2 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	134.474 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	85.06 ms	0 - 2 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® SA8775P	83.911 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® SA8650P	83.911 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® SA8255P	83.911 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-9075	82.761 ms	0 - 2 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-X7181	82.927 ms	1 - 1 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ Q-8750	48.108 ms	0 - 9 MB	NPU
decoder	VOICE_AI	mixed_with_float	Qualcomm® SA7255P	134.474 ms	0 - 10 MB	NPU
decoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Mobile	48.108 ms	0 - 9 MB	NPU
decoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Gen 5 Mobile	42.49 ms	0 - 9 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® X2 Elite	25.285 ms	4 - 4 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® X Elite	40.439 ms	4 - 4 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Gen 3 Mobile	30.393 ms	4 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	39.306 ms	4 - 10 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	66.6 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	40.769 ms	4 - 5 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® SA8775P	43.187 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® SA8650P	43.187 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® SA8255P	43.187 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-9075	42.771 ms	4 - 9 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-X7181	40.439 ms	4 - 4 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ Q-8750	25.433 ms	2 - 10 MB	NPU
encoder	VOICE_AI	mixed_with_float	Qualcomm® SA7255P	66.6 ms	2 - 11 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Mobile	25.433 ms	2 - 10 MB	NPU
encoder	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Gen 5 Mobile	23.812 ms	2 - 11 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® X2 Elite	67.768 ms	2 - 2 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® X Elite	129.255 ms	2 - 2 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® 8 Gen 3 Mobile	100.215 ms	2 - 10 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	122.558 ms	2 - 6 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-8275	245.44 ms	2 - 10 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	130.738 ms	2 - 4 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® SA8775P	128.57 ms	2 - 12 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® SA8650P	128.57 ms	2 - 12 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® SA8255P	128.57 ms	2 - 12 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-9075	127.417 ms	3 - 7 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ IQ-X7181	129.255 ms	2 - 2 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® Dragonwing™ Q-8750	81.528 ms	2 - 11 MB	NPU
flow	VOICE_AI	mixed_with_float	Qualcomm® SA7255P	245.44 ms	2 - 10 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Mobile	81.528 ms	2 - 11 MB	NPU
flow	VOICE_AI	mixed_with_float	Snapdragon® 8 Elite Gen 5 Mobile	71.057 ms	2 - 10 MB	NPU

License

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

References

Community

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qualcomm/MeloTTS-ZH