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)
“What can you do against the lunatic who is more intelligent than yourself, who gives your arguments a fair hearing and then simply persists in his lunacy.”
—George Orwell (1903–1950)
“For poetry, he’s past his prime,
He takes an hour to find a rhyme;
His fire is out, his wit decayed,
His fancy sunk, his muse a jade.
I’d have him throw away his pen,
But there’s no talking to some men.”
—Jonathan Swift (1667–1745)