Audio signal information with high quality would help the television audience to increase the perception of the information displayed. Transmission channel capacity will become limited, while the need of channel communication is increased. The research aim is coding the audio signal on the low bit rate for saving the channel communication usage for digital television broadcasting. The research ...

Coded Orthogonal Frequency Division Multiplexing (COFDM) [1, 2] has been specified for digital broadcasting systems for both audio -Digital Audio Broadcasting (DAB) [3] and (terrestrial) television -Digital Video Broadcasting (DVB-T) [4, 5, 6]. COFDM is particularly well matched to these applications, since it is very tolerant of the effects of multipath (provided a suitable guard interval is u...

The Digital Audio Broadcasting (DAB) system developed within the Eureka 147 project is well adapted to the requirements of broadcasting audio, programme associated data and general data including e.g. video, still images and coded traffic messages. The configuration of the DAB multiplex (i.e data rates and error protection of the different applications) is flexibly adjustable. Having evaluated ...

Examination of the Quality of Service (QoS) at the end-user level of multimedia broadcasting systems is necessary in order to retain the overall performance and the user’s satisfaction level from the provided services, by revealing the possible weaknesses of the systems’ specifications. Accordingly we examine Digital Audio Broadcasting (DAB) system’s characteristics at the services level, with ...

The bit rate of a single channel of high-quality digital audio may now be reduced by up to 90% using so-called 'perceptual coding systems' with minimal effects on sound quality. Such systems form the basis of proposals for digital audio broadcasting (DAB), this being the subject of the Eureka 147 programme, and they offer the possibility for extending the storage times available from digital re...

In order to enhance efficiency in designing digital audio applications we combine Protocol CompilerTM-based high level design methods and the Atmel System DesignerTM SoC technology. Starting with a Virtex FPGA prototype we outline the reuse-based SoC integration of a DAB TDG (Digital Audio Broadcasting Test Data Generator). Implementation results and functional extensions featuring SoC capabili...

The move to digital is a natural progression taking place in all aspects of broadcast media applications from document processing in newspapers to video processing in television distribution. This is no less true for audio broadcasting which has taken a unique development path in the United States. This path has been heavily influenced by a combination of regulatory and migratory requirements s...