Re: maximum 'tatum' speed perception ("John K. Bates" )

Subject: Re: maximum 'tatum' speed perception
From:    "John K. Bates"  <jkbates(at)COMPUTER.NET>
Date:    Tue, 9 Apr 2002 17:42:59 -0400

In a similar vein, when I hear announcers doing their fast-talking "fine print" on radio advertising commercials I have wondered about the limits of perceiving intelligible speech. There must be enough intelligibility in this kind of speech to satisfy legal requirements, at least if a listener wants to pay attention. I think that this also presents interesting technical problems. What does the time spectrograph look like? Is there a useful formant pattern? What about the stop consonants? Is there a proposed cochlear or CASA model that could show how to make sense out of this kind of speech? The human ability to understand rapid-fire speech seems to indicate that a processing method for extracting linguistic meaning must use a temporal rather than a spectral approach. - John Bates

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