This is version 4.1.2 (Jan. 2020), containing some updates and minor corrections from version 4.1.2. These are detailed in the document
The following translations of this document are available. Please note the translations may not be based on the latest version; see the year mentioned in brackets. These translations are courtesy of the translaters and hosted by the EBU 'as is'. The official and definitive version is the EBU English version.
Russian version of EBU Tech 3348  - Special thanks to EBU Member RTR.