Boxed Ear has released Hearken, a recording app that captures audio instantly from any audio input on your Mac using global hotkeys. Just hit a button and you’re recording. Hearken is always on, always listening. It can be used to capture anything from a quick MP3 to email a friend or 48 tracks of 96 kHz AIFF. Profiles can save these types of recording situations and can also be instantly recalled with a hotkey. Recordings are automatically named and saved, so you’re ready to move on to the next. Boxed Ear Hearken is available now for $39. It requires OS X 10.9 or later.

http://www.boxedear.com/hearken/hearken.html