Digitizing audio is relatively simple and can often be done on your own. It does, however, take a little bit of practice and research. This page will primarily focus on digitizing cassette tapes.
Digitizing cassettes does not require much effort or hardware and software, and the cost is low. The downside, however, is time. However long the tape is, it is going to take the same amount of time to digitize. If, for example, you have a cassette with a 2-hour interview that you want to digitize, the tape will take 2 hours to digitize (plus the time beforehand to set up and the time afterward to save and process). But in most cases, you can simply set it and forget it (once you have successfully completed a short test and determined the proper settings).
These proper settings, procedures, and resources will be explored further on the tabs under this page.
Hardware and Software
Steps to Digitize a Cassette
Note: The lists of vendors are not comprehensive nor are they an endorsement for one company other another. A few companies are provided to give examples of the many that are available.