Adobe Soundbooth Cs5 Fixed -

While Audition had the heavy-duty spectral editor, Soundbooth CS5 offered a lightweight version. You could visually identify a dog barking in the background or a chair squeak and literally "erase" it with a brush tool.

It proved that spectral editing could be intuitive (like Photoshop for your ears). It showed that batch processing didn't have to be a command-line nightmare. And most importantly, it failed so that could succeed. Adobe SoundBooth CS5

Unless you have a retro editing rig running Windows 7 or OS X 10.6, skip it. Modern alternatives like (for pros), Audacity (for free), or Reaper (for cheap) are objectively better. Audacity (for free)