Comparison of Comprehension of Two Forms of Compressed Speech

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Abstract
An experiment was performed to determine the influence of word rate and the method used in compressing speech upon listening comprehension. One group of subjects heard speech made rapid by means of the Tempo Regulator. The other group heard speech made rapid by playing a record at a faster speed than the one used during recording. Each group was further divided into three subgroups, and each subgroup heard the selection at a different accelerated word rate. The three word rates employed were 253, 300, and 350 words per minute. Following this, subjects took a multiple choice test of listening comprehension based upon the selection heard. The analysis of variance of test scores showed the word rate variable to be highly significant. However, the method used in compressing speech was not a significant variable.

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