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Aggressive joint compression for DTV simulcast

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A complete simulcast on digital TV (DTV) can be complex to implement in some scenarios, such as when the network bandwidth has many limitations. A common solution in such scenarios is to limit the number of duplicate programmes in the simulcast to a minimum. However, this practice slows down the migration to a new generation. This article analyses the causes of this delay and proposes a technique to improve the efficiency of the simulcast. Focusing on the migration from MPEG-2 SD to H.264 HD broadcasts in DVB-T networks, the article presents an efficient solution that can accelerate the transition period.

Keywords: DTV simulcast; DVB-T joint simulcast; MPEG-2 to H.264 transition; SD‐HD migration; aggressive compression; joint compression

Document Type: Research Article

Affiliations: 0000000121722676Universitat Pompeu Fabra

Publication date: June 1, 2020

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  • The Journal of Digital Media and Policy (formerly known as International Journal of Digital Television) aims to analyse and explain the socio-cultural, political, economic and technological questions surrounding digital media and address the policy issues facing regulators globally. This double-blind-peer-reviewed journal brings together and shares the work of academics, policy-makers and practitioners, offering lessons from one another's experience. Content is broad and varied, ranging from a mixture of critical work on technology, industry and regulatory convergence, to the emerging wider socio-cultural and political questions such as the application of online networks, the rise of cloud computing and the Internet of Things. We intend to examine critically emerging wider questions such as the role of 'digital citizens', the regulatory environment for the new platform industry and the role of state regulation in an increasingly global media industry.
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