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dBfs - Decibels relative to Full Scale - A unit of measurement for amplitude levels in digital systems. 0 dBFS is the level of a signal that is at the maximum level your system can cope with without clipping the tips of the waveform. So -10 dBFS means a level that is 10 decibels lower than the maximum level your system can handle. In summary - decibels are used to describe differences or changes in level. 0 dB means 'no change'. Values in dBFS are used to describe signal levels in comparison with the highest level your system can handle.
dBfs - Decibels relative to Full Scale - A unit of measurement for amplitude levels in digital systems. 0 dBFS is the level of a signal that is at the maximum level your system can cope with without clipping the tips of the waveform. So -10 dBFS means a level that is 10 decibels lower than the maximum level your system can handle. In summary - decibels are used to describe differences or changes in level. 0 dB means 'no change'. Values in dBFS are used to describe signal levels in comparison with the highest level your system can handle.