K-system
{{short description|Audio level measuring technique}}
{{about|calibrated mastering|automorphism|Kolmogorov system|the musician|K-System}}
The K-system is an audio level measuring technique proposed by mastering engineer Bob Katz in the paper "An integrated approach to Metering, Monitoring and Levelling".[http://www.aes.org/technical/documentDownloads.cfm?docID=65 An integrated approach to Metering, Monitoring and Levelling] It proposes a studio monitor calibration system and a set of meter ballistics to help engineers produce consistent sounding music while preserving appropriate dynamic range.{{cite web |url=http://www.soundonsound.com/sos/oct03/articles/bobkatz.htm |title=One of the most famous mastering engineers has written the definitive work on mastering, and in the process has created an indispensable resource for anyone working with audio |author=Hugh Robjohns |date=October 2003 |publisher=Sound on Sound |accessdate=2012-09-23}}