Free Audio Dub

Free Audio Dub is a sound editor that allows you to extract fragments from an audio file. It supports several audio file types.

The main advantage of this application is that it noticeably reduces the processing time because it does not need to re-encode the file. In addition, as no re-encoding is involved, there is no quality loss during the editing process. However, unlike other applications of the same type, it does not convert to other formats.
Although the program has no help documentation, it is very easy to use as the interface is very simple and does not include superfluous elements. Since it is available in several languages, you will not find those difficulties associated with using a program with foreign-language interface. Its operation is as simple as choosing an audio file. Then, you can select the start time and the end time for the desired fragment. Having done this, you will be ready to trim the unwanted segment. By doing this action repeatedly, you can edit the audio file and keep only the desired parts. Even after trimming, the action can be reversed by pressing the Undo button.
In general, Free Audio Dub is an intuitive and simple application that meets the needs it was created for. You may claim that this tool’s function is very specific, and you are right. However, this utility is also available as a part of a collection of free tools called Free Studio, which you will probably find quite comprehensive.