Digital radio uses digital coding instead of analog signals to convert sound into binary data for transmission and reception. It allows for more efficient use of frequencies, improved reception quality including in mobile situations, and enables new features like time shifting. Digital radio broadcasting is done through various methods including internet radio, cable, terrestrial systems like DAB/DAB+/DMB, and satellite. While digital radio broadcasting has been adopted in many countries, analog radio still exists in other areas.

1. DIGITAL RADIO Presented by: SADELLAH Nizar Class: SUP.TSI 3 English Presentation: Science & Technology Classes Préparatoires aux Grandes Ecoles – Filière TSI Lycée Technique d’Application - Mohammedia

3. Digital Radio: Definition and Principle Conversion of sound to binary data Transmission of data with specific technologies Digital Radio Radio using a digital coding instead of an analogic signal

7. Existence Problem Countries where DAB/DAB+/DMB exist

8. Conclusion … ..