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.
If you're new to Audacity, you may need to know a few things. If you are experienced in Audacity and feel confident that you can do good with it, skip this section. 1  All editing tools are under Effect. 2  In the Effect drop-down menu you will find two dividers dividing the menu into three sections.udacity is a free recording program capable of a lot of things. You can do anything from recording a song to recording lines for a cartoon. If you've written a song, and need an easy way to record it, this article will tell you how to record your song with Audacity, and give it a professional finish.