Separation of Sources with Rectangular Surface Filters

The goal of this example is to separate the voice and the organ.

Original sound :

Here, it is quite easy to differenciate the voice and the organ: the voice has a vibrato and the organ is without vibrato.We draw rectangular surfaces on organ parts:

We choose the "Reject" mode :

The resulting sound is only the voice :

If the "Pass" mode is selected :

The resulting sound is the other part which is supposed to be the organ only:

# Important remark :

The method used here is not very accurate. Much better results can be obtained using the pen or the harmonic pen.