Microphone Placement Distance Chart by Instrument
Starting distances for a home studio: vocals 6 to 8 inches on a condenser or 2 to 4 inches on a dynamic, acoustic guitar 12 to 14 inches aimed at the twelfth fret, guitar amp 1 to 3 inches from the grille, kick drum inside the shell, drum overheads 36 inches above the kit measured equally to the snare, and upright piano 8 to 12 inches over the open top. Doubling any of these distances drops the direct sound by 6 dB while the room stays constant, which is why close placement is the fix for an untreated room.
Definition: Microphone distance sets the ratio of direct sound to room sound, because the direct sound falls by 6 dB per doubling of distance under the inverse square law while the reverberant field in the room stays roughly constant.
Every microphone position is a negotiation between two facts. Moving closer raises the direct sound relative to the room by 6 dB per halving of distance, which is the fix for an untreated space. Moving closer also increases proximity effect, a low frequency boost that thickens a source and eventually muddies it. Every number below sits where those two forces balance for that instrument.
What distance should each source be recorded at?
Starting positions, not rules. Move from here and listen, because a specific room, instrument and player will always move the answer by an inch or two.
| Source | Distance | Aim at | Microphone type | Note |
|---|---|---|---|---|
| Vocal, condenser | 6 to 8 in | Mouth, slightly above, tilted down | Large diaphragm condenser | Pop filter at 2 to 3 in from the capsule |
| Vocal, dynamic | 2 to 4 in | Mouth, on axis | Cardioid dynamic | Proximity effect is the point, not a fault |
| Spoken voice, podcast | 4 to 6 in | Mouth, off axis by 15 degrees | Cardioid dynamic | Off axis reduces plosives without a filter |
| Backing vocals, group | 18 to 36 in | Between the singers | Condenser, omni or cardioid | Distance is what blends them |
| Acoustic guitar | 12 to 14 in | Twelfth fret | Small diaphragm condenser | Never the sound hole |
| Acoustic guitar, bad room | 6 to 10 in | Between twelfth fret and neck joint | Condenser or dynamic | Aim further up the neck to offset proximity |
| Electric guitar amp | 1 to 3 in | Halfway between dust cap and cone edge | Cardioid dynamic | Position across the cone matters more than distance |
| Guitar amp, room mic | 3 to 6 ft | The whole cabinet | Condenser | Check polarity against the close microphone |
| Bass amp | 2 to 6 in | Off centre of the cone | Kick drum microphone or large dynamic | Usually blended with a DI signal |
| Kick drum | 2 to 6 in inside | The beater, or off it for body | Dedicated kick microphone | Further in gives more click, less body |
| Snare top | 1 to 3 in | Rim edge, angled at the centre | Cardioid dynamic | Keep it out of the hi-hat path |
| Snare bottom | 1 to 2 in | The wires | Cardioid dynamic | Invert polarity, it faces the opposite way |
| Drum overheads | 36 to 48 in | Centre of the kit | Small diaphragm condenser pair | Both equidistant from the snare centre |
| Hi-hat | 4 to 6 in | Edge, above, away from the snare | Small diaphragm condenser | Never point it at the gap between cymbals |
| Drum room microphone | 6 to 12 ft | The whole kit, often waist height | Condenser or ribbon | Only worth it in a room worth capturing |
| Upright piano | 8 to 12 in | Over the open top, above the hammers | Small diaphragm pair | Or behind, with the back panel removed |
| Grand piano | 8 to 16 in | Over the hammers, one bass one treble | Small diaphragm pair | Lid on the long stick |
| Brass | 12 to 24 in | Slightly off the bell axis | Ribbon or condenser | Straight down the bell is harsh |
| Woodwind | 12 to 24 in | Between the keys and the bell | Small diaphragm condenser | The bell alone gives an unnatural tone |
| Strings, solo | 18 to 36 in | Above and in front of the f-holes | Condenser | Too close captures bow noise and scratch |
| Hand percussion | 8 to 18 in | Slightly off the striking surface | Condenser | Watch for transient overload up close |
Why does 6 dB per doubling matter so much?
Because it applies to the direct sound only. Under the inverse square law, sound spreading freely from a source loses 6 dB for every doubling of distance. The reverberant field of a room, meaning everything that has already bounced, is roughly uniform across the space and does not fall off the same way.
So distance does not change how much room you have. It changes the ratio between the source and the room, and that ratio is what makes a home recording sound amateur or professional.
| Distance | Relative level | Practical result |
|---|---|---|
| 3 in | +6 dB | Very dry, heavy proximity effect, plosive risk |
| 6 in | 0 dB | The reference vocal position |
| 12 in | -6 dB | Natural, room starting to be audible |
| 24 in | -12 dB | Room clearly present, needs treatment |
| 48 in | -18 dB | Mostly room in an untreated space |
| 96 in | -24 dB | A room recording, whatever the room happens to be |
Read the last three rows as a warning. In a small untreated bedroom the critical distance, the point where direct and reverberant sound are equal, is often only two or three feet. Past that you are recording the room more than the instrument, which is why distant placement in an untreated space almost never produces the sound that inspired it on a record made in a hall.
How much proximity effect should you expect?
Proximity effect is a consequence of pressure gradient operation, so it scales with how directional the microphone is. Omnidirectional microphones are pure pressure transducers and have essentially none of it, which is exactly why an omni sounds thin up close compared with a cardioid at the same distance.
| Distance | Boost below 200 Hz | Sounds like |
|---|---|---|
| 1 in | +10 to +16 dB | Radio voice, and unusable on most sources |
| 2 in | +8 to +12 dB | The intentional broadcast sound |
| 4 in | +5 to +8 dB | Warm and intimate, still controllable |
| 6 in | +3 to +5 dB | The usual vocal starting point |
| 12 in | +1 to +2 dB | Essentially neutral |
| 24 in | 0 dB | None, and the room is now the variable |
Two consequences worth planning around. First, a singer who moves between three and eight inches across a performance is changing their low end by 5 dB or more, which reads in the mix as an inconsistent voice rather than as a movement problem. Second, proximity effect is a feature on a dynamic used for voice: a Shure SM7B at two inches is doing on purpose what a condenser at two inches does by accident.
The single change that improved my home vocals most was not a microphone. It was marking the position on the floor and on the boom, so the same singer came back to the same distance on day two. Before that, comping between takes recorded on different days meant fighting a tonal change that no EQ move fixes cleanly, because proximity effect is not a static curve, it moves with the performer phrase to phrase. Now the stand gets marked, the distance gets written on the session notes, and the pop filter doubles as a physical stop so the singer cannot drift in on a loud line. It is the least glamorous thing on this page and it saves the most time.
What holds the microphone at that distance?
An inch of drift is a tonal change, so a stand that creeps is not a minor annoyance. A boom is a lever, and the torque at the clutch is the microphone weight times its horizontal distance from the pivot, which is why a counterweighted euro boom such as the On-Stage MS7701B holds a position that a light tripod will not.
A shock mount handles the other failure mode, which is structural vibration arriving through the stand rather than through the air. On a suspended wooden floor a single footstep can put a low frequency thump under the best phrase of the day. The stands and boom arms roundup covers what holds position under load.
How does polar pattern change the distance you should use?
A more directional pattern hears less room at any given distance, which means it lets you work further back for the same direct-to-room ratio. That is the useful way to think about pattern choice in an untreated space.
- Omnidirectional picks up the room from every direction, so it needs the closest placement in a bad room and rewards the best rooms.
- Cardioid rejects roughly 20 to 25 dB directly behind, which in practice means the rear wall reflection is substantially reduced. This is the home studio default.
- Supercardioid is tighter at the front, and its nulls sit at about 126 degrees rather than straight back, so it must be aimed differently to reject a specific source.
- Figure of eight rejects the sides completely, more than 25 dB, and hears the rear as strongly as the front. It is the best tool for isolating two sources facing each other and the worst for ignoring a wall behind you.
The polar pattern chart has the null angles for each, which is what you actually aim.
Where to go from here
Pick the source you are recording and start at the distance in the first table, then adjust for your room rather than for the number. A large diaphragm condenser at eight inches in a treated room and the same microphone at five inches in a bare bedroom are both correct, because they are solving different problems.
- How to record vocals at home: the full method at the top of this table
- How to record acoustic guitar at home: why the twelfth fret and not the sound hole
- How to record drums at home: distance as a phase problem rather than a tone one
- Microphone polar patterns chart: the rejection angles you aim
- How to treat a room for recording: how to earn the right to move further back
Frequently asked questions
How far should a microphone be from a vocalist?
Six to eight inches for a condenser with a pop filter, and two to four inches for a dynamic like the SM7B. The distance is a tradeoff between two things: closer means more direct sound relative to the room, which is what you want in an untreated space, and closer also means more proximity effect, which is a low frequency boost that thickens the voice and can turn to mud.
What is proximity effect and at what distance does it start?
Proximity effect is a low frequency boost that directional microphones produce as they approach a source, caused by pressure gradient operation. It becomes clearly audible inside about 12 inches and pronounced inside 6 inches, where it can add 6 to 10 dB below 200 Hz. Omnidirectional microphones are pressure transducers and have essentially none of it, which is why an omni sounds thinner up close than a cardioid.
Does doubling the distance really halve the volume?
It drops the direct sound by 6 dB, which is a bit more than halving perceived loudness. The inverse square law applies to the direct sound only. The reflected sound in the room stays roughly constant regardless of distance, so what actually changes as you pull back is the ratio between the two, and that ratio is why an untreated room sounds worse the further away you place the microphone.
How close should a microphone be to a guitar amp?
One to three inches from the grille for a close microphone, and the position across the speaker cone matters more than the distance. Aimed at the centre of the dust cap gives the brightest and most aggressive tone, halfway out gives the usual balanced starting point, and at the edge of the cone gives a darker, rounder sound. Move it an inch and the tone changes audibly.
What distance should I record acoustic guitar at?
Twelve to fourteen inches, aimed at the twelfth fret rather than the sound hole. The sound hole is a Helmholtz resonator tuned around 90 to 110 Hz and pointing a microphone into it produces the boomy tone people then try to EQ away. In an untreated room work closer, at 6 to 10 inches, and aim further along the neck to compensate for the added proximity effect.
Is there a rule for how far to place a room microphone?
The critical distance, which is the point where direct sound and reverberant sound are equal in level. Closer than that and the source dominates, further and the room does. In a small untreated bedroom it is often only two or three feet, which is why distant microphone placement in an untreated room captures mostly the room and rarely sounds like the recordings that inspired it.
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