Online Catalogue

OP-59 Audio Loudness Measurement

DK Technologies
  • Measurement and Management of Loudness in Soundtracks for Television Broadcasting
  • The Operational Practice 59 (OP-59) is recommended by Free TV Australia and refers to the measurement of audio loudness as distinct from audio level. It sets out guidelines for measuring and matching the loudness of programmes, promotional spots and commercial advertisements that are presented contiguously in digital television broadcasting on Australian television services. It is intended as an aid to avoiding the excessive loudness contrasts that can be annoying to consumers. The importance of matching and managing the loudness of soundtracks for television broadcasting is outlined in Appendix 3 of the document.

    AVW are Australia and New Zealand distributors for the respected DK Technologies range of Audio Meters. DK Technologies offer a range of Audio Metering Products which comply with the adopted International Telecommunications Union standard ITU-R BS.1770 for measuring audio programme loudness.
    DK CALM Meters
    The DK Technologies revolutionary new DK1, DK2 and DK3 Compact Audio Loudness Meters (CALM) offer excellent value for fully featured 2 channel; stereo and 6 channel; surround sound audio meters.

    PDF Download the OP-59 Document
    (PDF, Issue 2, Dec. 2012, Pages: 9)