Recording Acoustic Guitar at Home With One Microphone

Why One Microphone Is Plenty

Most home recordings of acoustic guitar go wrong long before the signal reaches your interface. A single well-placed microphone in a sensible room will comfortably outperform a mismatched pair in a bare box bedroom, and it sidesteps the phase headaches that come with multi-mic setups. One mic means one decision to get right, and it means you spend your session playing rather than fiddling.

There is a pleasant side effect too. A mono acoustic part sits beautifully in a mix and forces you to commit to a performance and a tone. Stereo can come later, from double-tracking or a touch of reverb, but a confident mono take is the foundation of almost every great acoustic record you have ever loved.

Before you touch any gear, make the instrument itself sound good. Fresh strings, correct tuning and a comfortable action do more for a recording than any microphone upgrade. A guitar that buzzes or fights you will sound like a guitar that buzzes or fights you, however expensive the capsule in front of it.

Start at the Twelfth Fret

If you only remember one thing, remember this: point the microphone at the twelfth fret, roughly 20 to 30 centimetres away, angled slightly towards the neck rather than straight at the soundhole. The twelfth fret is where the body and the strings meet in a way that flatters nearly every steel-string guitar. You get the wood and the warmth from the body without the boxy boom that lives directly over the soundhole.

Move in small increments and listen. A few centimetres makes an audible difference:

• Towards the neck — more string detail, more finger noise, a tighter and more intimate sound.
• Towards the bridge — more body, more low end, a rounder and slightly duller tone.
• Closer than 15cm — a bigger, more aggressive sound with proximity bass, and more risk of pick attack dominating.
• Further than 40cm — the room starts to join in, for better or worse.

If the guitar is bright and thin, aim nearer the bridge. If it is dark and woolly, come back towards the twelfth fret and angle the mic slightly off the soundhole. Classical and nylon-strung guitars often reward a little more distance, around 30 to 40 centimetres, because their attack is softer and the body speaks more slowly.

Distance, Angle and Playing to the Mic

Once you have a spot you like, keep it. Mark the floor with tape, note the height, and repeat it next time. Consistency is how you build an overdub that matches the take before it, and it is how you learn what your room actually sounds like.

Angle matters as much as distance. A microphone pointing perpendicular to the strings hears the brightest, most percussive version of your playing. Turn it ten or twenty degrees off-axis and the pick click softens while the note stays. For fingerstyle, a gentle angle across the body captures the thumb and the nails in a more even balance.

Play for the microphone. If you normally sit hunched over the guitar, your body is already filtering the sound. Sit up, keep your right hand moving in the same plane, and be aware that a strummed chord aimed straight at the capsule will spike where a fingerpicked phrase will not. Try a lighter pick, or your fingers, if the attack is overwhelming. Small changes in technique are free; another microphone is not.

Getting the Room Out of the Way

Almost every untreated room has a flutter echo — that metallic ringing you hear when you clap your hands once. It comes back on every recording as a hollow, cheap-sounding tail, and it cannot be fixed with EQ afterwards.

You do not need acoustic panels to tame it. Soft furnishings do most of the work:

• Hang a duvet or thick blanket behind the microphone, not behind you, so it absorbs what passes the guitar.
• Record in the wardrobe with the doors open and clothes either side — an old trick that still works.
• Put a rug down if you have hard flooring, and stand bookshelves filled with books at the first reflection points.
• Avoid corners and small cubic rooms. A slightly larger room, even an untidy one, usually sounds better than a tidy box.
• Kill noise at source. Fridges, boilers, phone chargers and nearby traffic are far easier to switch off than to remove later.

Test before you commit. Record thirty seconds of silence at your normal gain, then listen back with headphones turned up. Whatever you hear in that silence is what you will hear underneath every quiet passage.

Gain, Levels and a Repeatable Routine

Record at 24-bit and aim for peaks around −12 to −6 dBFS. There is no prize for a hot signal, and a little headroom protects you from a single enthusiastic strum ruining a perfect take. Set your interface gain with the loudest passage you intend to play, not the average.

Monitor on closed-back headphones so nothing bleeds back into the microphone, and keep the click quiet if you use one. It is astonishing how often a faint click track ends up buried in a solo guitar recording.

Finally, build a routine you repeat every session: tune, check the mic position against your tape marks, record ten seconds of silence, then play a test passage and listen critically before you record anything properly. Two minutes of checking saves an hour of wishing you had. Do that consistently and one microphone will take you a very long way indeed.