GTK Wave Cleaner

GTK Wave Cleaner is a digital audio editor application. The graphical user interface for the editor has been produced employing GTK+ for the GUI widgets. Its primary author is Jeff Welty.
GTK Wave Cleaner is free and open-source software subject to the terms of the GPL-2.0-or-later.

WWW gwc.sourceforge.net

Features

GTK Wave Cleaner's primary purpose is to clean up poor quality recordings, such as those captured from old 78 rpm phonograph records. It provides tools for removing noise by spectral subtraction and for removing clicks by least squares autoregressive interpolation. It is also capable of automatically marking song boundaries, and developing TOC records for creating music Compact Discs from the cleaned audio file. It uses libsndfile to edit various audio file formats, and can export to mp3 and ogg.