Good suggestions above. Are you wanting to do editing or add effects to your recorded audio? If so, then Garageband is the way to go. All you need is a simple audio interface and a mic or two. Then follow any of the dozens of online tutorials for getting going. If you want to record something quick and easy without the hassle of dealing with a computer, go with a good quality handheld. I recommend the Zoom H5 with the X/Y mics. You can then do basic editing on the device and export it directly to a computer and the outside world. REALLY great sound out of the box!
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