Gradually, thanks to the impetus given by the Higher Council of the Audiovisual, and in particular thanks to the strategy known as the “Plan de l’Audiovisuel” of Nicolas Curien’s nodes and arcs, the DAB+ is being set up in large French cities. However, this is based on long and patient work, particularly at the technical level. We will look at the genesis of sound coding and digital broadcasting. And then we’ll ask ourselves: what differentiates this technology from that of frequency modulation? What are its strengths and capabilities for progress and sustainability? A new method of dissemination based on exemplary European collaboration and promising local initiatives.