Fx Audio Tools - Version 7.3.4 Fx Audio tools include an audio file converter that supports most common audio and video sound types such as variable bit rate MP2 and MP3 files. Other tools include a CD Audio ripper, a sound recorder, an audio file player an audio file transformer, a joiner and a splitter. Utilities include additional tools for mixing two files, converting to mono, converting to stereo and a dual file player to play two files at the same time.