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I agree that the articles are related; however, the article you linked is primarily about time-stretching, whereas this article is about time-compression. Also, time-compressed speech is ubiquitous enough (appearing at the end of a great many radio and TV advertisements), that I think it deserves its own article, independent of the more technical general article to which you linked.
This article should, however, be fleshed out a bit. Some mention should be made of the techniques used to time-compress speech without altering the original pitch. For example: