You do not need a stereo pair or a rack of preamps to capture a beautiful acoustic sound. Learning to record acoustic guitar one mic at a time is the fastest way to get a clean, focused, mix-ready tone, and it sidesteps the phase problems that trip up beginners using two microphones. A single well-placed mic gives you a mono track that sits perfectly in a busy mix and is dead simple to edit. Here is exactly where to put that mic, what to use, and how to shape the result.
Choosing a mic to record acoustic guitar one mic at a time
A small-diaphragm condenser is the classic choice for a single-mic acoustic. Its fast transient response captures the detail of strings and pick attack accurately, which is why engineers reach for pencil condensers like the Rode NT5, sE Electronics sE7, or a Neumann KM 184 when budget allows. A large-diaphragm condenser also works and tends to sound warmer and fuller, which can flatter a bright or thin-sounding guitar.
If you are recording in an untreated, echoey room, a dynamic mic such as an SM57 is a surprisingly good fallback because it rejects room reflections and off-axis noise. It will sound a little darker and less airy than a condenser, but a clean, close dynamic track beats a roomy, boxy condenser track every time. Whatever you use, put it on a stable stand, engage a pop or wind screen if you are close, and record in 24-bit with peaks around -12 to -6 dBFS for safe headroom.
The sweet spot: aim at the 12th fret
Mic placement matters far more than which microphone you own. The reliable starting position is to aim the mic at the 12th fret, where the neck meets the body, from roughly 15-30 cm (6-12 inches) away. This spot gives a balanced blend of string detail and body warmth. Then adjust from there based on what you hear:
- Too boomy or muddy? Move the mic away from the sound hole and further toward the neck, or pull it back a few centimetres. The sound hole is the bass port and pointing a mic straight at it produces an overwhelming, woofy low end.
- Too thin or bright? Move slightly back toward the body, past the 12th fret, to pick up more warmth and resonance.
- Want more pick attack? Angle the mic toward the bridge and the picking hand for extra snap, useful for percussive strumming.
Never point the mic directly into the sound hole expecting a full sound; you will only get boom. The neck-and-body area around the 12th fret is where the guitar’s tone is most even. Distance also sets the character: closer gives a tighter, more intimate, present tone with more finger noise, while pulling back adds air and room but risks picking up an untreated space. For most home rooms, closer and drier is the safer choice.
Get the performance and room right
When you only have one mic, the source has nowhere to hide, so spend your effort there. Fresh strings transform an acoustic recording; a couple of days of playing dulls the sparkle that makes a guitar shine on record, so restring before a serious take. Fret buzz, squeaky finger slides, and clothing rustle all get captured, so play cleanly, keep loose sleeves away, and remove any jangly jewellery. If your chair or the guitar creaks, isolate it.
Kill obvious room reflections cheaply by hanging a duvet or standing an acoustic panel behind the mic and to the sides. You are not building a studio, just stopping the nearest hard surfaces from bouncing sound back into the capsule. If you want a sense of width later from a single mono take, you can double-track: record the part twice and pan the two performances left and right, exactly as you would with electric rhythm guitars. That gives a wide, rich acoustic bed from one microphone and two passes.
EQ and polish after recording
A single-mic acoustic usually needs only light shaping. Start with a high-pass filter around 60-80 Hz to remove low rumble and handling thumps without thinning the body. If the low mids sound boxy or congested, sweep and cut 2-3 dB somewhere around 200-400 Hz. For clarity and air, a gentle 1-3 dB lift up around 8-12 kHz adds sparkle, and a small boost near 3-5 kHz brings out pick presence if the part needs to cut. Harsh, spiky string noise can be tamed with a de-esser or a narrow dynamic cut in the 4-8 kHz range.
A touch of gentle compression, 2-4 dB of reduction with a medium attack, evens out strumming dynamics so the guitar sits steadily in the mix. Add reverb last, and keep it modest for a natural result; a short plate or room reverb placed behind the guitar gives depth without drowning the detail you worked to capture.
For related technique, see our guides on EQ for guitar and adding guitar to a track, and grab the tuner and metronome from our free audio tools hub so every take is in tune and in time. Choose a condenser or a clean dynamic, aim at the 12th fret, fix the source, then shape lightly, and you can record acoustic guitar with one mic that sounds professional and sits beautifully in any mix.
