Test Audio Post

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Natural Versus Synthesized Voice

Instructors have the option of lecturing with the human voice or a computer-generated voice. In a study involving a lecture on lightning formation, students learned better from the recorded human voice than the Microsoft text-to-speech software [§22 Atkinson et al., 2005]. This finding aligns with the voice principle, which asserts that the human voice is superior to a computer-generated voice for lecturing [§22 Mayer et al., 2003]. However, improvements to voice synthesis technology have made computer-generated voices similar to or better than human voices for learning [§22 Craig and Schroeder, 2017]. 

Example 1

Written Input

Lead(II) nitrate in water can lead to environmental hazards.

“Lead” is a heteronym.

  1. Pronounced as “leed”. To initiate or to be in a position of initiative or advantage.
  2. Pronounced as “led”. (Science) A metal.

Jonathan

Textmagic
“en-US-Casual-K”

NaturalReader
“Jane”

Example 2

Written Input

Lead(II) nitrate in water can lead to environmental hazards.

“Lead” is a heteronym.

  1. Pronounced as “leed”. To initiate or to be in a position of initiative or advantage.
  2. Pronounced as “led”. (Science) A metal.

Jonathan

Textmagic “en-US-Casual-K”

NaturalReader “Jane”