Micah uses Audacity and he gets an intermittent hum on his microphone. Leo says that the mic Micah uses is USB and so a hum can't really find its way into the chain because the power is coming from the laptop, not an analog phantom power source. It could mean that the Digital to Audio converter is going bad, but if there's no analog loop, then there can't be a hum. So it must be software.
Greg wants to know if he can use a Chromebook to record and edit audio recordings. Leo says that newer ChromeBooks support the use of Android apps from the Play Store and that would give you access to audio recording apps. There's also multiple cloud-based audio editors where you save in the cloud and edit through the Chrome browser. Here's good list here. Soundcloud. Twisted Wave.
George has a huge MP3 file he wants to chop up into several small clips. Leo says that MP3 Splitter is a good option. Audacity is another good option. He may need an MP3 encoder like LAME along with it.
Leo says that Audacity is open source and works great, but it can be buggy. Cool Edit was the ideal open source option, but Adobe bought it and turned it into Audition. It is now the champagne of audio editing programs, but it's also hundreds of dollars. Unless he has a lot of problems with Audacity, Leo recommends just sticking with that.