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)
“The hearing ear is always found close to the speaking tongue; and no genius can long or often utter anything which is not invited and gladly entertained by men around him.”
—Ralph Waldo Emerson (1803–1882)
“Talking about dreams is like talking about movies, since the cinema uses the language of dreams; years can pass in a second and you can hop from one place to another. It’s a language made of image. And in the real cinema, every object and every light means something, as in a dream.”
—Frederico Fellini (1920–1993)