gwc 0.21.19~dfsg0-4 (powerpc binary) in ubuntu vivid

 The GNOME Wave Cleaner (gwc) is an application that helps you in
 getting rid of noise and clicks in audio files. This is most
 commonly used when translating your old vinyl or old tapes to
 a digital format, but it can be applied to every soundfile that
 has a more or less constant noise level.