Gravitational pull is the invisible force that causes massive objects to pull other objects towards them. For instance, when a person jumps up in the air, it is the earthâs gravitational pull... Gravitational pull is the invisible force that causes massive objects to pull other objects towards them.
Audacity is a free, easy-to-use audio editor and recorder for Windows, Mac OS X, and GNU/Linux. You can use Audacity to: 1  Record live audio; 2  Cut, Copy and Paste, Delete, Duplicate, and Split audio files; 3  Change the speed, pitch or volume of a recording; 4  Apply effects to any part of the sound; 5  Align audio segments.
Wait for Audacity to load. Click on File and then Import audio.. Use the window that appears to find the audio file you want to import into Audacity. Then, when you find it, double click on it. Wait for Audacity to import the audio file. Find the section of audio that you want to copy.