4. Conclusion

The development of digital radio has been made possible mainly by the following techniques:

audio bit-rate reduction with increasingly high-performance codecs, in particular HE-AAC v2, based on a perceptual model, reconstruction of the high-frequency part of the spectrum, and parameterization of the stereo image of an audio signal;
error-correcting detector codes and their flexibility, which, combined with interleaving-deinterleaving, enable original data to be recovered after propagation under difficult conditions;
OFDM digital modulation (presented in

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Conclusion

Bibliography

(1) - DEHERY (Y-F.) - Le codage du son numérisé. Les spécifications, la technique de compression du son utilisée et sa qualité de restitutior. - CCETT Rennes, janv. 1992.
(2) - STOLL (G.), DEHERY (Y-F.) - High Quality Audio bit-rate reduction system family...

Source coding

Information technology – Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s – Part 3: Audio http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=22412 - ISO/IEC 11172-3 - 1993
Information technology – Generic coding of moving pictures and associated audio information – Part 3: Audio http://www.iso.org/iso/iso_catalogue/catalogue_ics/catalogue_detail_ics.htm?csnumber=22991...