Solutions for MXF Loudness Issues

Cube-Tec International provides three different approaches for your file-based loudness requirements. Each one is optimized for a separate use-case within your business workflow.

Loudness correction for outgoing MXF files

  • The loudness correction gain is calculated and provided as metadata for controlling the audio level within the play-out-system.
  • It is also possible to force high-speed in-place overwriting of MXF audio tracks with loudness corrected audio data.

See Cube-Tec's MXF Loudness Assimilator for more details.

Loudness correction for incoming MXF files

The MXF Legalizer firewall approach: Analysis of the MXF file structure, calculation of file-based loudness adaption value and re-creation of a welldefined MXF file in a fully compliant format with corrected audio tracks but without touching the video essence itself.

This performance-optimized two-in-one step approach is the best way to achieve a homogenous collection with minimized risk of MXF interoperability issues for future use.

Practical workflow examples with loudness correction

Read the news article

During IBC and NAB, Cube-Tec demonstrated at the EBU/AMWA booth automated loudness normalization that adheres to EBU R 128 (ITU-R BS.1770-2) and ATSC A/85 which is especially important to North American broadcasters dealing with CALM Act challenges.