FLT, Adobe Audition Filter (.flt)
The FLT Misc file format
The FLT file format and extension is associated with different programs and purposes. The most common, however, is Adobe Audition. Audition is Adobe’s program for audio mixing, manipulation, and restoration. The FLT files contain audio filters used in said program. They are used to apply effects such as echo, distortion and other effects to an existing audio file. In order for Audition to be able to load the FLT file, it must be stored in the main application folder.
Technical details of FLT files
In 2003, Adobe acquired Syntrillium software. The later created the audio editing software Cool Edit Pro on which base Adobe created Adobe Audition. Thus, some FLT files are still compatible with the Cool Edit Pro software.