The work involved in creating digital subtitling and audio description files and adapting said files to any digital broadcast medium includes:
1° Writing the subtitle and audio description texts;
2° Interpreting and recording the audio description;
3° Mixing and sound transfer;
4° Inlaying the subtitles;
5° Adapting the digital subtitling and audio description files to the various digital broadcast media.
This work must be carried out in compliance with the methodological requirements of the Charter relating to the quality of subtitling for the deaf or hard of hearing of 12 December 2011 and those of the Audiodescription Charter of 10 December 2008.