Kara-Audio

🌍 한국어 ∙ English ∙ 日本語

The best gradio web-ui for vocal remover that uses demucs and mdx-net. Automatic subtitle creation using faster whisper. Easy one click installation. Fully portable.

Running example

kara-studio-eng.mp4

Introduction

Kara-Audio is the new name of AI Studio. from 2024-04-10

• Kara-Audio turns YouTube videos into your own karaoke music videos.
• You can create transcripts, meeting minutes, as well as subtitles for movies, dramas, and news.
• It is equipped with Vocal Remover provided by UVR5 and Automatic Subtitles function using OpenAI Whisper.
• Kara-Audio can be easily installed with one click and provides Gradio Web-UI.

main function

• Kara Audio Tab
  • YouTube downloader, vocal removal, automatic subtitle integrated environment

• Demixing Tab

  • Vocal separation, Reverb/Echo removal
  • MDX-Net, Demucs model support
  • Supports 3 audio outputs (wav, flac, mp3)

• Subtitle Tab

  • Voice recognition, Automatic subtitles (srt, vtt, txt)
  • Supports over 90 languages (English, Japanese, French, German, Chinese, 한국어)

Key-Features

• You can download YouTube videos (mp4, webm) and save them as audio files (mp3, wav, flac).
• We provide vocal remover. Uses MDX-Net and Demucs.
• Automatic subtitle creation is possible through AI voice recognition. It uses OpenAI’s high-performance voice recognition engine, Whisper.
• Whisper supports over 90 languages, including Japanese, Korean, English, Chinese, French, and Spanish.
• One-click installation. Once installed, you can use it permanently at no additional cost. (※ Free version has 30 minute limit on usage time)
• Provides Web-UI. Google Chrome browser is recommended.

Running Environment

• OS : Windows 10/11 (64bits) ※ Linux, Mac OS is not supported.
• CPU: Intel Processor 2GHz or faster (or equivalent compatible)
• RAM: 16GB or more
• HDD: At least 20GB of free space during installation
• GPU: NVIDIA graphics card supporting CUDA 12.3 is recommended. VRAM 6GB or more.
• Internet connection required (installation)

Installing and running

step 1. Package preparation

• A. Paid version

  • Unzip the compressed file (kara-audio-x.zip) included in the USB to an appropriate location on your computer.
  • Or, copy the already unzipped folder (kara-audio-x) to an appropriate location on your computer.

• B. Free version

  • Download and unzip the latest release ( Source code (zip) ) from
  • Or, download source code with git clone

git clone https://github.com/abus-aikorea/kara-audio.git

step 2. How to install and run

0. Before installation

   • Run Windows Update to update the system to the latest status.
   • Update the NVIDIA Graphic Driver to the latest status.

1. Run configure.bat

   • Install ffmpeg and CUDA (if using an NVIDIA GPU) and the Windows SDK on Windows.
   • Installation requires an Internet connection and may take more than an hour depending on your computer specifications.
   • Never close the Windows-Command window during installation. (If the operation appears to have stopped, press the space bar occasionally)
   • If an error occurs during installation, we recommend running uninstall.bat and starting again from the beginning.
   • configure.bat only needs to be run once.

2. Run start.bat

   • Start Kara-Audio. Web-UI will run automatically.
   • When running for the first time, install Kara-Audio first.
   • Installation requires an Internet connection and may take more than an hour depending on your computer specifications.
   • Never close the Windows-Command window during installation. (If the operation appears to have stopped, press the space bar occasionally)
   • If an error occurs during installation, delete the installer_files folder and run start.bat again.

   When the browser does not run automatically

   • Close the Windows-Commnad window and run start.bat again or
   • Run the browser directly and enter the address displayed in the Windows-Command window (e.g. http://127.0.0.1:7894 ) into the address bar.

step 3. How to uninstall

• Run uninstall.bat

  • Remove installer_files .
  • Remove the ffmepg, CUDA packages and Windows SDK installed on Windows (if selected)

• Kara-Audio has a portable installation as standard. To uninstall the program, deleting the installation folder is sufficient.

Tips for use

1. About Demixer

   • Facebook Research's Demucs models (htdemucs, htdemucs_6s, htdemucs_ft, mdx_extra) all show good performance.
   • Demucs runs quite well even on low-end PCs (8GB of RAM).
   • In MDX-Net, UVR-MDX-NET-Voc_FT, Kim_Vocal_2, UVR_MDXNET_KARA_2, etc. show good performance.
   • MDX-Net models only operate on high-end PCs (RAM 16GB or more).
   • Try using the models one by one and find one that suits your purpose.
   • We recommend using the latest NVIDIA GPU (VRAM 6GB or higher). Out-of-memory errors may occur if VRAM is insufficient.

2. About Whisper

   • Large-V2 model is best. The rest have poor recognition rates.
   • If the audio language is 'Korean', it is best to set the Whisper language to 'Korean' as well.
   • When the audio language is 'Korean', if you set the Whisper language to 'Japanese', 'Japanese' will be output, but the accuracy will be low. (Google Translator is better.)
   • The Denoise option removes noise using the MDX-Net model. Voice recognition results may improve. (Use only on high-end PC)

Caution!!

When Windows Defender mistakenly recognizes a batch file as a Trojan, this is often called a 'False Positive'. To solve this problem, you can go through the following steps:

1. File exception handling: In Windows Defender, you can set certain files or processes to skip security scanning. To do this, follow the steps below:
   • Click the ‘Start’ button and go to ‘Settings’.
   • Click ‘Update & Security’.
   • Select ‘Windows Security’ and go to ‘Virus & threat protection’.
   • Click ‘Manage Virus & Threat Protection Settings’.
   • Select 'Add exception' in 'Virus & threat protection settings'.
   • Select 'File or Folder', find the batch file in question and add it as an exception.
2. Temporarily disable Windows Defender: This may be a temporary solution. However, you must be careful when using this method as it may expose your computer to other threats.
3. Report the problem to anti-virus software: If you are sure that the file is not a Trojan horse, you can report it to Microsoft as a False Positive. Microsoft will review this and take any necessary action.

Contact us

• e-mail: abus.aikorea@gmail.com
• homepage(Korean): https://slashpage.com/abus
• 네이버 스마트스토어(korean): https://smartstore.naver.com/abus/category/ALL?cp=1
• Coupang(Korean): https://www.coupang.com/vp/products/7875503674
• Amazon(US): https://www.amazon.com/dp/B0CTQQDPXT
• Amazon(Japan): https://www.amazon.co.jp/dp/B0CTHT2JH3

YouTube

• Product Information: https://youtu.be/heEN4UIQLjc
• Automatic Subtitle∙Translation: https://youtu.be/uQ14hoEiI4c?si=Io9K_vIDYyeu9Z8_
• Home Karaoke: https://youtube.com/playlist?list=PLwx5dnMDVC9bVxfGo58U-R-w3fUHqwiD6&si=TZBh5AFjcr7_dyiI

Credits

• UVR5: https://github.com/Anjok07/ultimatevocalremovergui
• FacebookResearch Demucs: https://github.com/facebookresearch/demucs
• OpenAI Whisper: https://github.com/openai/whisper
• Faster-Whisper: https://github.com/SYSTRAN/faster-whisper
• yt-dlp: https://github.com/yt-dlp/yt-dlp
• gradio: https://github.com/gradio-app/gradio

Copyright

by ABUS