Both Friend and Foe,
Who says recording an acoustic guitar is difficult?
Oh contraire, my friends. Recording an acoustic guitar is no harder than recording any other acoustic stringed instrument. Oh sure, some simple sonic rules apply, but certainly nothing worth getting high strung about.
I'll begin by addressing a few of the common misconceptions. Most microphones are designed with a general recording purpose in mind, but there are few hard and fast rules that apply to recording. Although a particular mic may seem appropriate for the setting, there are no guarantees. No two acoustic guitars sound alike, no two rooms sound alike, and no two players play alike. Each recording presents a different set of variables.
Some folks believe a good acoustic guitar sound can only be accomplished by placing the microphone inside the sound-hole of the acoustic. My advise is to forget such nonsense, as it falls dangerously far from the truth, and almost always results in a very poor recording. Even a high quality contact condenser mic mounted inside the instrument produces a compromised result and is generally not used for serious recording. You don't stick your ears in the sound hole when you listen to an acoustic guitar do you? I certainly don't.
Indeed, microphone placement is key to recording any acoustic instrument, but it need not be difficult. An acoustic guitar has wonderful ambient and dynamic qualities, often overlooked or misunderstood. Try backing the mic away from the guitar a few inches, pointing the diaphragm toward the sound-hole. Relax, and let the instrument breathe. Changing the axis alignment of the mic, even ever so slightly, can produce startling results. Most importantly, listen for the subtle changes, and learn what is meant by critical listening'. Don't settle for the first sound you dial in. Take your time, and by all means, enjoy the process.
Skate the Razor