1. Zero-shot TTS: Input a 5-second vocal sample and experience instant text-to-speech conversion.

2. Few-shot TTS: Fine-tune the model with just 1 minute of training data for improved voice similarity and realism.

3. Cross-lingual Support: Inference in languages different from the training dataset, currently supporting English, Japanese, Korean, Cantonese and Chinese.

4. WebUI Tools: Integrated tools include voice accompaniment separation, automatic training set segmentation, multilingual ASR with Fun-ASR-Nano, SenseVoice, and classic FunASR, plus text labeling, assisting beginners in creating training datasets and GPT/SoVITS models.

Check out our demo video here!

Unseen speakers few-shot fine-tuning demo:

RTF(inference speed) of GPT-SoVITS v2 ProPlus: 0.028 tested in 4060Ti, 0.014 tested in 4090 (1400words~=4min, inference time is 3.36s), 0.526 in M4 CPU. You can test our huggingface demo (half H200) to experience high-speed inference .

请不要尬黑GPT-SoVITS推理速度慢，谢谢！

CPU-Optimized Inference Version：https://github.com/baicai-1145/GPT-SoVITS-CPUFast

User guide: 简体中文 | English

For users in China, you can click here to use AutoDL Cloud Docker to experience the full functionality online.

If you are a Windows user (tested with win>=10), you can download the integrated package and double-click on go-webui.bat to start GPT-SoVITS-WebUI.

Users in China can download the package here.

Install the program by running the following commands:

conda create -n GPTSoVits python=3.10
conda activate GPTSoVits
pwsh -F install.ps1 --Device <CU126|CU128|CPU> --Source <HF|HF-Mirror|ModelScope> [--DownloadUVR5]

conda create -n GPTSoVits python=3.10
conda activate GPTSoVits
bash install.sh --device <CU126|CU128|ROCM|CPU> --source <HF|HF-Mirror|ModelScope> [--download-uvr5]

Note: The models trained with GPUs on Macs result in significantly lower quality compared to those trained on other devices, so we are temporarily using CPUs instead.

Install the program by running the following commands:

conda create -n GPTSoVits python=3.10
conda activate GPTSoVits
bash install.sh --device <MPS|CPU> --source <HF|HF-Mirror|ModelScope> [--download-uvr5]

conda create -n GPTSoVits python=3.10
conda activate GPTSoVits

pip install -r extra-req.txt --no-deps
pip install -r requirements.txt

conda activate GPTSoVits
conda install ffmpeg

sudo apt install ffmpeg
sudo apt install libsox-dev

Download and place ffmpeg.exe and ffprobe.exe in the GPT-SoVITS root

Install Visual Studio 2017

brew install ffmpeg

Due to rapid development in the codebase and a slower Docker image release cycle, please:

• Check Docker Hub for the latest available image tags
• Choose an appropriate image tag for your environment
• Lite means the Docker image does not include ASR models and UVR5 models. You can manually download the UVR5 models, while the program will automatically download the ASR models as needed
• The appropriate architecture image (amd64/arm64) will be automatically pulled during Docker Compose
• Docker Compose will mount all files in the current directory. Please switch to the project root directory and pull the latest code before using the Docker image
• Optionally, build the image locally using the provided Dockerfile for the most up-to-date changes

• is_half: Controls whether half-precision (fp16) is enabled. Set to true if your GPU supports it to reduce memory usage.

On Windows (Docker Desktop), the default shared memory size is small and may cause unexpected behavior. Increase shm_size (e.g., to 16g) in your Docker Compose file based on your available system memory.

The docker-compose.yaml defines two services:

• GPT-SoVITS-CU126 & GPT-SoVITS-CU128: Full version with all features.
• GPT-SoVITS-CU126-Lite & GPT-SoVITS-CU128-Lite: Lightweight version with reduced dependencies and functionality.

To run a specific service with Docker Compose, use:

docker compose run --service-ports <GPT-SoVITS-CU126-Lite|GPT-SoVITS-CU128-Lite|GPT-SoVITS-CU126|GPT-SoVITS-CU128>

If you want to build the image yourself, use:

bash docker_build.sh --cuda <12.6|12.8> [--lite]

Once the container is running in the background, you can access it using:

docker exec -it <GPT-SoVITS-CU126-Lite|GPT-SoVITS-CU128-Lite|GPT-SoVITS-CU126|GPT-SoVITS-CU128> bash

If install.sh runs successfully, you may skip No.1,2,3

Users in China can download all these models here.

1. Download pretrained models from GPT-SoVITS Models and place them in GPT_SoVITS/pretrained_models.

2. Download G2PW models from G2PWModel.zip(HF)| G2PWModel.zip(ModelScope), unzip and rename to G2PWModel, and then place them in GPT_SoVITS/text.(Chinese TTS Only)

3. For UVR5 (Vocals/Accompaniment Separation & Reverberation Removal, additionally), download models from UVR5 Weights and place them in tools/uvr5/uvr5_weights.

   • If you want to use bs_roformer or mel_band_roformer models for UVR5, you can manually download the model and corresponding configuration file, and put them in tools/uvr5/uvr5_weights. Rename the model file and configuration file, ensure that the model and configuration files have the same and corresponding names except for the suffix. In addition, the model and configuration file names must include roformer in order to be recognized as models of the roformer class.

   • The suggestion is to directly specify the model type in the model name and configuration file name, such as mel_mand_roformer, bs_roformer. If not specified, the features will be compared from the configuration file to determine which type of model it is. For example, the model bs_roformer_ep_368_sdr_12.9628.ckpt and its corresponding configuration file bs_roformer_ep_368_sdr_12.9628.yaml are a pair, kim_mel_band_roformer.ckpt and kim_mel_band_roformer.yaml are also a pair.

4. FunASR models are downloaded automatically on first use. The WebUI offers Fun-ASR-Nano for multilingual and dialect ASR, SenseVoice for fast transcription, and classic Paraformer/UniASR through FunASR for Chinese and Cantonese. To preinstall the classic Chinese models for offline use, download the ASR model, VAD model, and punctuation model into tools/asr/models.

5. For English or Japanese ASR (additionally), download models from Faster Whisper Large V3 and place them in tools/asr/models. Also, other models may have the similar effect with smaller disk footprint.

The TTS annotation .list file format:

vocal_path|speaker_name|language|text

Language dictionary:

• 'zh': Chinese
• 'ja': Japanese
• 'en': English
• 'ko': Korean
• 'yue': Cantonese

Example:

D:\GPT-SoVITS\xxx/xxx.wav|xxx|en|I like playing Genshin.

Double-click go-webui.bator use go-webui.ps1 if you want to switch to V1,then double-clickgo-webui-v1.bat or use go-webui-v1.ps1

python webui.py <language(optional)>

if you want to switch to V1,then

python webui.py v1 <language(optional)>

Or maunally switch version in WebUI

1. Fill in the audio path
2. Slice the audio into small chunks
3. Denoise(optinal)
4. ASR
5. Proofreading ASR transcriptions
6. Go to the next Tab, then finetune the model

Double-click go-webui-v2.bat or use go-webui-v2.ps1 ,then open the inference webui at 1-GPT-SoVITS-TTS/1C-inference

python GPT_SoVITS/inference_webui.py <language(optional)>

OR

python webui.py

then open the inference webui at 1-GPT-SoVITS-TTS/1C-inference

New Features:

1. Support Korean and Cantonese

2. An optimized text frontend

3. Pre-trained model extended from 2k hours to 5k hours

4. Improved synthesis quality for low-quality reference audio

   more details

Use v2 from v1 environment:

1. pip install -r requirements.txt to update some packages

2. Clone the latest codes from github.

3. Download v2 pretrained models from huggingface and put them into GPT_SoVITS/pretrained_models/gsv-v2final-pretrained.

   Chinese v2 additional: G2PWModel.zip(HF)| G2PWModel.zip(ModelScope)(Download G2PW models, unzip and rename to G2PWModel, and then place them in GPT_SoVITS/text.)

New Features:

1. The timbre similarity is higher, requiring less training data to approximate the target speaker (the timbre similarity is significantly improved using the base model directly without fine-tuning).

2. GPT model is more stable, with fewer repetitions and omissions, and it is easier to generate speech with richer emotional expression.

   more details

Use v3 from v2 environment:

1. pip install -r requirements.txt to update some packages

2. Clone the latest codes from github.

3. Download v3 pretrained models (s1v3.ckpt, s2Gv3.pth and models--nvidia--bigvgan_v2_24khz_100band_256x folder) from huggingface and put them into GPT_SoVITS/pretrained_models.

   additional: for Audio Super Resolution model, you can read how to download

New Features:

1. Version 4 fixes the issue of metallic artifacts in Version 3 caused by non-integer multiple upsampling, and natively outputs 48k audio to prevent muffled sound (whereas Version 3 only natively outputs 24k audio). The author considers Version 4 a direct replacement for Version 3, though further testing is still needed. more details

Use v4 from v1/v2/v3 environment:

1. pip install -r requirements.txt to update some packages

2. Clone the latest codes from github.

3. Download v4 pretrained models (gsv-v4-pretrained/s2v4.pth, and gsv-v4-pretrained/vocoder.pth) from huggingface and put them into GPT_SoVITS/pretrained_models.

New Features:

1. Slightly higher VRAM usage than v2, surpassing v4's performance, with v2's hardware cost and speed. more details

2.v1/v2 and the v2Pro series share the same characteristics, while v3/v4 have similar features. For training sets with average audio quality, v1/v2/v2Pro can deliver decent results, but v3/v4 cannot. Additionally, the synthesized tone and timebre of v3/v4 lean more toward the reference audio rather than the overall training set.

Use v2Pro from v1/v2/v3/v4 environment:

1. pip install -r requirements.txt to update some packages

2. Clone the latest codes from github.

3. Download v2Pro pretrained models (v2Pro/s2Dv2Pro.pth, v2Pro/s2Gv2Pro.pth, v2Pro/s2Dv2ProPlus.pth, v2Pro/s2Gv2ProPlus.pth, and sv/pretrained_eres2netv2w24s4ep4.ckpt) from huggingface and put them into GPT_SoVITS/pretrained_models.

• High Priority:

  • Localization in Japanese and English.
  • User guide.
  • Japanese and English dataset fine tune training.

• Features:

  • Zero-shot voice conversion (5s) / few-shot voice conversion (1min).
  • TTS speaking speed control.
  • Enhanced TTS emotion control. Maybe use pretrained finetuned preset GPT models for better emotion.
  • Experiment with changing SoVITS token inputs to probability distribution of GPT vocabs (transformer latent).
  • Improve English and Japanese text frontend.
  • Develop tiny and larger-sized TTS models.
  • Colab scripts.
  • Try expand training dataset (2k hours -> 10k hours).
  • better sovits base model (enhanced audio quality)
  • model mix

Use the command line to open the WebUI for UVR5

python tools/uvr5/webui.py "<infer_device>" <is_half> <webui_port_uvr5>

This is how the audio segmentation of the dataset is done using the command line

python audio_slicer.py \
    --input_path "<path_to_original_audio_file_or_directory>" \
    --output_root "<directory_where_subdivided_audio_clips_will_be_saved>" \
    --threshold <volume_threshold> \
    --min_length <minimum_duration_of_each_subclip> \
    --min_interval <shortest_time_gap_between_adjacent_subclips>
    --hop_size <step_size_for_computing_volume_curve>

Run dataset ASR with FunASR from the command line. Fun-ASR-Nano is the default for Chinese, English, Japanese, Korean, and automatic language detection; Cantonese keeps the classic FunASR backend.

python tools/asr/funasr_asr.py -i <input> -o <output> -l zh

Faster Whisper is also available as an ASR backend.

(No progress bars, GPU performance may cause time delays)

python ./tools/asr/fasterwhisper_asr.py -i <input> -o <output> -l <language> -p <precision>

A custom list save path is enabled

Special thanks to the following projects and contributors:

• ar-vits
• SoundStorm
• vits
• TransferTTS
• contentvec
• hifi-gan
• fish-speech
• f5-TTS
• shortcut flow matching

• Chinese Speech Pretrain
• Chinese-Roberta-WWM-Ext-Large
• BigVGAN
• eresnetv2

• paddlespeech zh_normalization
• split-lang
• g2pW
• pypinyin-g2pW
• paddlespeech g2pw

• ultimatevocalremovergui
• audio-slicer
• SubFix
• FFmpeg
• gradio
• faster-whisper
• FunASR
• Fun-ASR
• SenseVoice
• AP-BWE

Thankful to @Naozumi520 for providing the Cantonese training set and for the guidance on Cantonese-related knowledge.