Audacity is an open source sound recording and editing platform that can be used on Mac, PC, and Linux systems. You can install it for free on your computer or access it on a computer in the Digital Studio. To install Audacity, go to the download page, and choose the appropriate link for your operating system. Follow the install instructions on the website carefully.
The following resources will provide you with ways of learning the platform:
The Audacity manual for more detailed information (Note that the image of the Audacity interface is interactive and explains each function.) The "Getting Started" is especially helpful for beginners.