Speed Hearing & Speed Talking
For the specific case of speech, time stretching can be performed using PSOLA.
Time stretching can be used with audio books and recorded lectures. Slowing down may improve comprehension of foreign languages .
While one might expect speeding up to reduce comprehension, Herb Friedman says that "Experiments have shown that the brain works most efficiently if the information rate through the ears--via speech--is the "average" reading rate, which is about 200-300 wpm (words per minute), yet the average rate of speech is in the neighborhood of 100-150 wpm."
Speeding up audio is seen as the equivalent of "speed reading" .
Time stretching is often used to adjust Radio commercials and the audio of Television advertisements to fit exactly into the 30 or 60 seconds available.
Read more about this topic: Audio Timescale-pitch Modification
Famous quotes containing the words speed, hearing and/or talking:
“No speed of wind or water rushing by
But you have speed far greater.”
—Robert Frost (1874–1963)
“You are not wood, you are not stones, but men;
And being men, hearing the will of Caesar,
It will inflame you, it will make you mad.”
—William Shakespeare (1564–1616)
“Kasper Gutman: You’re a closemouthed man?
Sam Spade: Un, un. I like to talk.
Gutman: Better and better. I distrust a closemouthed man. He generally picks the wrong time to talk and says the wrong things. Talking is something you can’t do judiciously unless you keep in practice.”
—John Huston (1906–1987)