All other levels is usually measured and described when it comes to 0 dBFS. So such as a signal that's 10 decibels lower than the ideal possible level is -10 dBFS. A sign inside digital audio workstation may be +10 dBFS, however it would need to be lowered in level for output as being a WAV file, otherwise it becomes clipped, meaning that this tips of the waveform can be squared off at 0 dBFS.
ConclusionDecibels are utilized to describe differences or changes in level. 0 dB means'no change '.
Values in dBFS are utilized to describe signal levels when compared to the best level a WAV file can handle.