Development of a Speaker Diarization System for Speaker Tracking in Audio Broadcast News: a Case Study

A system for speaker tracking in broadcast-news audio data is presented and the impacts of the main components of the system to the overall speaker-tracking performance are evaluated. The process of speaker tracking in continuous audio streams involves several processing tasks and is therefore treated as a multistage process. The main building blocks of such system include the components for audio segmentation, speech detection, speaker clustering and speaker identification. The aim of the first three processes is to find homogeneous regions in continuous audio streams that belong to one speaker and to join each region of the same speaker together. The task of organizing the audio data in this way is known as speaker diarization and plays an important role in various speech-processing applications. In our case the impact of speaker diarization was assessed in a speaker-tracking system by performing a comparative study of how each of the component influenced the overall speaker-detection results. The evaluation experiments were performed on broadcast-news audio data with a speaker-tracking system, which was capable of detecting 41 target speakers. We implemented several different approaches in each component of the system and compared their performances by inspecting the final speaker-tracking results. The evaluation results indicate the importance of the audio-segmentation and speech-detection components, while no significant improvement of the overall results was achieved by additionally including a speaker-clustering component to the speaker-tracking system

Role of the Media and the Internet as Tools for Creating Accountability to Poor and Disadvantaged Groups

human development, democracy

A Comparative Analysis of Media Pluralism and Content Diversity Policy in Slovenia, Hungary, Croatia and Serbia (Subject: Cultural Policy and Cultural Rights)

The purpose of this paper is to explain and present the existing policies and practices on media pluralism and content diversity in four different states in Europe, through comparing and analyzing two member states of the European Union, Hungary and Slovenia, and two non-EU countries, Serbia and Croatia. The main goal of this paper is to recommend solutions for better practices in media pluralism and content diversity in one of the analyzed countries, Serbia. The countries previously mentioned have been chosen for the analyses and comparison due to their close proximity to each other, and the similar composition of their minority populations

Mapping Digital Media: Slovenia

The Mapping Digital Media project examines the global opportunities and risks created by the transition from traditional to digital media. Covering 60 countries, the project examines how these changes affect the core democratic service that any media system should provide: news about political, economic, and social affairs.Transition to digital broadcasting has been relatively fast and painless for Slovenia from a technical perspective, as has the spread of digital media more broadly. With the second-highest penetration of IPTV in Europe, it appears that the Slovenian population has keenly embraced new media platforms at the expense of radio, newspapers, and satellite TV. But the changes and implications for media diversity and society more broadly have stopped short of anything that could be considered a digital revolution. Key challenges remain,particularly in securing a sustainable future for the quality news sector.From a consumer and citizen's perspective, digitization has succeeded in expanding the quantity and accessibility of news and information, but not the quality and diversity of content. In combination with the lingering effects of the financial crisis, the independent performance of the media at large is under threat. This remains the over-arching challenge for policymakers