How to shorten the listening time of audio as much as 50%

These audio files are mp3 and can be listened to on a number of players.
 
Check your player for the ability to increase the streaming speed!
 
In windows media player there is a "Play Speed Settings" that you can adjust up to 2x.
 
This will make an hour audio only 30 minutes.
 
Dan Gastelu has been a University lecturer and so his speaking pace is measured (so people can take notes!)
 
For listening, you can speed him up and not even notice!!!

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