Analysis of Differences from Broadcast News to Meetings

Taking the broadcast news speaker diarization system as a backbone to build a meetings diarization system requires the adaptation of the previous system to the new requirements. While doing so, it was considered important to keep as much as possible the same structure and to make all the changes adaptable to obtain a system that could run with a correct performance in both broadcast news and meeting domains.

In this section, first an analysis is performed of some of the parameters that might differ from meetings to broadcast news, by looking at the input signals and reference segmentation files. This is intended to be a practical comparison between the two domains in order to identify the strengths and weaknesses of each one. Then, a more theoretical comparison is proposed between both domains and some high level changes are proposed to adapt the original broadcast news system to the meeting domain.