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Automatic Extraction of MPEG-7 Audio Metadata using the Media Asset Management System iFinder

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This paper describes the MPEG-7 compliant media asset management system iFinder, which provides a set of automatic methods and software tools for media analysis, archiving and retrieval. The iFinder was developed for use in the media industry and consists of the iFinderSDK and the iFinder retrieval engine. The iFinderSDK is composed of a bundle of modules that realize individual technologies for audio and video metadata extraction. In this paper we present the audio content processing workflow and the pattern recognition methods implemented in iFinder. In particular, a technique for precise audio/text alignment and a browser that displays the synchronized media channels of the retrieval results are discussed. This paper also provides practical insight into how to use MPEG-7 as a standardized metadata format for media asset management.

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