Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
Audio Recorder - ‘Audio Recorder’ is a small utility for recording audio.
Reaper - Reaper is a focused digital audio workstation (DAW) developed by Cockos. In the creation of the software, the digital audio technology company intended to make audio editing accessible to the masses.
Audio Record Wizard - How to record streaming audio with the streaming audio recorder - Audio Record Wizard.
FL Studio - Image-Line's FL Studio, now on it's 12th version, is a well-known music production suite and the most popular beat processor on the market, due no doubt to its longevity. Read more about FL Studio.
Piezo - Piezo makes it a snap to record audio on your Mac.