Broadcasting movies in linear TV or via streaming presents a considerable challenge, especially for highly dynamic content like action films. Normalising such content to the paradigm of "Programme Loudness" may result in dialogue levels much lower than the loudness reference level (-23 LUFS in Europe). On the other hand, normalising to the dialogue level may lead to overly loud sound effects. The EBU Loudness group PLOUD has addressed this issue with the publication of R 128 s4, the forth supplement to the core recommendation R 128. In order to have a better understanding of the challenge, an extensive analysis of 44 dubbed movies (mainly Hollywood mainstream films) has been conducted. These analysed films were already dynamically treated for broadcast delivery by experienced sound engineers. The background of the latest document of the PLOUD group will be presented and the main parameter LDR (Loudness-to-Dialogue-Ratio) will be introduced. A systematic approach when and how to proceed with dynamic treatment will be included.
