Time-compressed speech is a technique used, often in advertising, to make recorded speech contain more words in a given time, yet still be understandable.
Before electronic methods were developed, spokespeople who could talk extremely quickly and still be understood were widely used, especially for disclaimers.
The same number of words can be compressed into a smaller time, and thus reduce advertising costs, or more information can be included in a given radio or TV ad. Another advantage is that this method seems to make the ad louder (by increasing the average volume), and thus more likely to be noticed, without exceeding the maximum volume allowed by law.
The effect of removing the silences and increasing the speed is to make it sound much more insistent, possibly to the point of unpleasantness.
Unfortunately, there are a variety of confusing terms used for this and related technologies:
Ericsson makes first commercial compressed speech call over an all-IP network.(Telefonaktiebolaget LM Ericsson, Vimpelcom)(Brief Article)
Feb 08, 2006; NORDIC BUSINESS REPORT-8 February 2006-Ericsson makes first commercial compressed speech call over an all-IP network(C)1994-2006...
Patent No. 7,606,563 Issued on Oct. 20, Assigned to Telefonaktiebolaget L M Ericsson for Distributed Telephone Conference (German Inventors)
Oct 23, 2009; ALEXANDRIA, Va., Oct. 24 -- Peter Bloecher of Nurnberg, Germany, Karl Hellwig of Wonfurt, Germany, Matthias Rychetsky of Muhltal,...