Audacity here. Noise removal function is great when you aren't in a sound proof room and it is easy to use and free. Watch a few tutorials on each suggestion though so you can see if you like the interface and ease of use. If someone has a menu bar open up, pause the video and look at what is there to determine what you can and can't do with a software. Personally, I only needed something to record, removal excess noise like small static or noise from the air conditioner. Audacity was the best choice.