ABSTRACT
Virtually all applications of digital audio deal with enormous amounts of data. Even though modern computer networks have a capacity that may eliminate the need for audio signal compression, there remain many channels, including nearly all wireless communications channels, for which signal compression is essential for commercial viability of applications. Because of this, compression is an integral part of all digital radio and digital television systems, including
• The Advanced Television Systems Committee (ATSC) digital television broadcast system;
• The iBiquity Digital Corporation’s HD Radio System (standardized by the National Radio Systems Committee);
• Commercial satellite radio broadcast systems (such as XM and Sirius Satellite Radio);
• Other terrestrial DAB systems (such as Digital Radio Mondiale, Eureka-147, and ISDB-T) and nascent cellular streaming audio systems.
