Freeware: an audio demixer
ISSE is a free open source software that allows for demixing your audio recordings. It is still in alpha version but looks really promising.
ISSE gives you the opportunity to extract or separate two sound sources, instruments or vocals, from an audio recording. The software is developed under GNU v3 licence, and was initially part of NIcholas J. Bryan’s PhD thesis at the Center for Computer Research in Music and Acoustics of the Stanford University. It then was developed with other collaborators.
ISSE uses an audio separation algorithm based on “learning” (user feedback) and works like a Photoshop software for audio. You’ll even find painting and drawing tools similar to the photo editor.
The GUI is divided in three sections: the original audio file on the upper part, and two other spaces for the separated sources. You can also divide these sections into separate windows and the developer included a menu in which you can adjust the separation and audio settings (sample rate, buffer size…).
And don’t forget to have a look at this video showing various edition examples, the result is really convincing:
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