Concerns about insulation in a basement ceiling likely is sparked by noise concerns and weathering different seasons with energy efficiency and comfort in mind. Depending on what your current set-up is is the step toward a solution. If you have an unfinished basement, you are working with a blank slate and can do it right from the start. If you are attempting to add insulation to a set up that is already in place, it will likely be a more costly and difficult task. I provided some helpful links below to get you started - or until you can provide more information. Be sure to look into tax credits for adding insulation, energy savings!