ComfyUI Extension: DeepExtract2

Authored by abdozmantar

Created

Updated

13 stars

DeepExtractV2 – lightning-fast, high-quality audio separator. Instantly isolate vocals, drums, bass, and more from any track. Ideal for creators, DJs, and audio pros.

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    README

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    DeepExtractV2 Node for ComfyUI

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    Transform any track in seconds: our DeepExtractV2 node isolates each audio element flawlessly, letting you remix, analyze, or enhance your music faster than ever, all from a single, ultra-efficient node.

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    Installation | Usage | Example | Node Inputs - Outputs

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    Installation

    Follow these steps to add ComfyUI-DeepExtractV2 to your ComfyUI setup and start separating audio tracks instantly:

    1. Navigate to the ComfyUI custom_nodes Folder

    Locate your ComfyUI installation folder. Inside, you will find a folder named custom_nodes.

    Tip: This is where all third-party nodes should be placed.

    ComfyUI/
└─ custom_nodes/

    2. Clone the Repository

    You can clone this repository directly into the custom_nodes folder. Open a terminal or command prompt and run:

    cd path/to/ComfyUI/custom_nodes
git clone https://github.com/abdozmantar/ComfyUI-DeepExtractV2.git

    This will download all necessary files into a folder named ComfyUI-DeepExtractV2.

    3. (Optional) Update the Repository

    If you already have the repository and want to update it with the latest version:

    cd path/to/ComfyUI/custom_nodes/ComfyUI-DeepExtractV2
git pull origin main

    4. Install Dependencies

    Go to the node folder and install the requirements:

    cd path/to/ComfyUI/custom_nodes/ComfyUI-DeepExtractV2
python setup.py

    💡 Windows Users: You can alternatively double-click setup.bat to install all dependencies automatically.

    This will ensure all necessary Python packages are installed in the environment ComfyUI uses.

    5. Restart ComfyUI

    After installing the node and its dependencies, restart ComfyUI. The DeepExtractV2 node should now appear in the node list under your custom nodes.

    6. Add the Node to Your Graph

    Double-click anywhere in ComfyUI and search for the node by typing DeepExtractV2. Alternatively, right-click anywhere, then navigate to:

    Add Node > DeepExtractV2 > DeepExtractV2 - Separator

    Click to add it to your graph and start separating audio tracks instantly.

    <img src="https://github.com/abdozmantar/ComfyUI-DeepExtractV2/blob/main/assets/NodePath.png?raw=true" style="border-radius: 24px;" alt="webui-demo" width="100%"/>

    Usage

    Overview

    • The DeepExtractV2 Node allows you to separate audio tracks into individual stems, such as vocals, drums, bass, and other elements. By connecting your mixed audio to this node in ComfyUI, you can isolate specific components of a song or audio file for further processing, manipulation, or preview.
    <img src="https://github.com/abdozmantar/ComfyUI-DeepExtractV2/blob/main/assets/NodeUsage.png?raw=true" style="border-radius: 24px;" alt="webui-demo" width="100%"/>

    Example

    Suppose you want to separate a song into individual components like vocals, drums, bass, and other instruments. Here’s how you can use the DeepExtractV2 Node to achieve this:

    Load an Audio File

    First, load your mixed audio track into ComfyUI. This is the input that the DeepExtractV2 Node will process.

    Add the DeepExtractV2 Node

    Insert the DeepExtractV2 Node into your workflow. You will see options to:

    • Select which stem to isolate: e.g., vocals, drums, bass, other

    • Choose the method for the remaining stems:

      • add → sums all other stems into one track (useful for “no_vocals” type outputs)
      • minus → subtracts the selected stem from the original track
      • none → does not produce any complementary track

    • Set processing parameters: device (CPU/GPU), chunk overlap, number of shifts, segment size, bit depth, audio format, etc.

    Connect Inputs and Outputs

    • Connect your audio file to the track input of the node.
    • Specify an output folder for the separated tracks.
    • Adjust optional parameters like clip_mode or audio_format if needed.

    Configure Stem Selection

    • Extract all stems: Leave the stem input empty and set other_method = none. This will give you all four audio outputs separately:

      • vocals
      • drums
      • bass
      • other

    • Extract only one stem: Specify the stem name (e.g., vocals). Then you can choose how to handle the remaining audio:

      • minus_{stem} → the original track minus the selected stem
      • no_{stem} → sum of all other stems (works if other_method = add)

    ⚠️ Tip: If you only want all individual stems without combining anything, leave the stem input empty and set other_method = none. This is the recommended way to get vocals, drums, bass, and other as separate outputs.

    Process the Audio

    Run the workflow. The node will separate your audio based on your configuration and save the results in the specified folder. The file names will be automatically generated using the stem name and track name.

    Preview and Further Manipulation

    • Connect the outputs to Preview Audio nodes to listen to each separated track in real-time.
    • You can also route the outputs to other nodes for further processing, effects, or mixing.

    Example Workflow for Extracting All Stems:

    1. Load your song into ComfyUI.
    2. Add the DeepExtractV2 Node.
    3. Leave stem empty and set other_method = none.
    4. Connect outputs to Preview Audio nodes to listen to each stem.
    5. Run the node → outputs: vocals.wav, drums.wav, bass.wav, other.wav

    This setup ensures you can hear or use every component of your song individually without any missing tracks.

    Node Inputs - Outputs

    • Purpose: This node separates an input audio track into different stems (e.g., vocals, bass, drums) using AI-based separation.
    <img src="https://github.com/abdozmantar/ComfyUI-DeepExtractV2/blob/main/assets/NodeInterface.png?raw=true" style="border-radius: 24px;" alt="webui-demo" width="100%"/>

    1. Track

    • Type: Audio
      • The input audio track to be processed. This is the main file the model will analyze to extract the selected stem.

    2. Drums

    • Type: Audio Output
      • Contains the isolated drum track extracted from the input audio. Useful for remixing or drum-only analysis.

    3. Bass

    • Type: Audio Output
      • Contains the isolated bass line from the original track. Allows you to manipulate or process only the bass.

    4. Other

    • Type: Audio Output
      • Captures all remaining instruments or sounds not classified as drums, bass, or vocals. Useful for background or instrumental extraction.

    5. Vocals

    • Type: Audio Output
      • Provides the isolated vocal track. Ideal for vocal editing, remixing, or karaoke purposes.

    6. Derived Stem

    • Type: Audio Output Automatically generated complementary stem based on the selected separation method (other_method). Can represent “everything except selected stem” or a custom mix.

    7. Out

    • Type: String
      • Defines the folder name where the separated tracks will be saved. This folder is automatically created inside the main ComfyUI directory.

    8. Device

    • Type: Enum (cuda, cpu)
      • Selects the processing device. Using cuda enables GPU acceleration for faster inference, while cpu works on systems without GPU support.

    9. Overlap

    • Type: Float (0.0–1.0)
      • Controls the overlap between audio chunks during separation. Higher values may improve quality but require more processing time.

    10. Shifts

    • Type: Integer (1–20)
      • Sets the number of random shifts used to stabilize predictions. More shifts improve quality but increase computation time.

    11. Segment

    • Type: Integer (0–600)
      • Defines the segment length (in seconds) to split the input audio. Set to 0 to process the full track without splitting.

    12. Bit Depth

    • Type: Enum (default, int24, float32)
      • Determines the bit depth of the output audio. int24 provides higher precision, while default uses system settings.

    13. Clip Mode

    • Type: Enum (rescale, clamp, none)
      • Controls how clipping is handled in output audio. rescale normalizes peaks, clamp limits them, and none disables clipping correction.

    14. Audio Format

    • Type: Enum (wav, flac, mp3)
      • Specifies the format of the exported audio files. Choose wav for uncompressed output or mp3 for smaller file sizes.

    15. MP3 Bitrate

    • Type: Integer (64–320)
      • Sets the bitrate when exporting as MP3. Higher values improve audio quality but increase file size.

    16. MP3 Preset

    • Type: Integer (2–7)
      • Adjusts the MP3 encoding speed and quality. Lower numbers mean better quality but slower encoding.

    17. Jobs

    • Type: Integer (0–32)
      • Defines how many parallel jobs (threads) to use. Increasing this speeds up processing on multi-core CPUs.

    18. Split

    • Type: Boolean
      • Enables splitting the input audio into smaller chunks to save memory. Recommended for long or high-resolution tracks.

    19. Other Method

    • Type: Enum (none, add, minus)
      • Determines how to generate the complementary stem (no_{STEM}). add sums the remaining stems, while minus subtracts the selected stem from the original track.

    20. Stem

    • Type: String
      • Defines which stem to isolate (e.g., vocals, drums, bass). The node will separate only this stem and its complementary version.

    21. Filename

    • Type: String
    • Sets the naming pattern for output files. You can use variables like {track}, {stem}, and {ext} to dynamically generate filenames.

    Author

    Name: Abdullah OZMANTAR
    GitHub: https://github.com/abdozmantar

    Developed by Abdullah OZMANTAR