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Investigating an Automatic Method for Summarizing and Presenting a Video Speech Using Acoustic Features
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Abstract
Two fundamental aspects of speech summary generation are the extraction of key speech content and the style of presentation of the extracted speech synopses. We first investigated whether acoustic features (speaking rate, pitch pattern, and intensity) are equally important and, if not, which one can be effectively modeled to compute the significance of segments for lecture summarization. As a result, we found that the intensity (that is, difference between max DB and min DB) is the most efficient factor for speech summarization. We evaluated the intensity-based method of using the difference between max-DB and min-DB by comparing it to the keyword-based method in terms of which method produces better speech summaries and of how similar weight values assigned to segments by two methods are. Then, we investigated the way to present speech summaries to the viewers. As such, for speech summarization, we suggested how to extract key segments from a speech video efficiently using acoustic features and then present the extracted segments to the viewers.
- keywords
- speech summarization, acoustic features, prosodic features, TED Talks, Praat, 스피치 요약, 비디오, 피치, 강도, 내재적 평가, 스피치 속도, speech summarization, acoustic features, prosodic features, TED Talks, Praat
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