With a specific software, you can editing audios as a professional, but if you only want to work in an audio with basic functions for example: add silence, change the amplitude, cut, paste or normalize the audio sound you can make these with a simple application and not complicate his life.
You can use software as Jokosher for making this simple task, is one of the best alternative to do that. Jokosher editor gives you a simple solution and integrates also multi-track options for adding music in your audios or makes mix that you want and obtaining as a result composition.
Jokosher is an audio editor with which you will be comfortable editing without a level of technical knowledge. In the toolbar you will find quickly functions with which you can change absolutely your audios. It also integrates the possibility of incorporate instruments and makes modify in the configuration. The formats in which you can work with the editor are its own format of the program and other popular as WAV, MP3 and OGG.