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:
“Wait, Kate! You skate at such a rate
You leave behind your skating mate.
Your splendid speed won’t you abate?
He’s lagging far behind you, Kate.”
—David Daiches (b. 1912)
“Ah, Governor [Murphy, of New Jersey], don’t try to deceive me as to the sentiment of the dear people. I have been hearing from the West and the East, and the South seems to be the only section which approves of me at all, and that comes from merely a generous impulse, for even that section would deny me its votes.”
—William Howard Taft (1857–1930)
“You know what I’m talking about. This business has changed. Flyers aren’t pilots anymore, they’re engineers. This is a college man’s game. Our work is done. The pioneering is over.”
—Frank W. Wead (1895?–1947)