A shotgun microphone is a highly directional microphone that captures sound from one specific direction while rejecting noise from the sides and rear, making it the standard tool for isolating dialogue in film, TV, and outdoor video production.
How a Shotgun Microphone Works (The Interference Tube)
A shotgun microphone uses a physical component called an interference tube — a long cylinder with slots cut into its sides, mounted in front of the microphone capsule. Off-axis sounds entering the tube’s side slots arrive at the capsule slightly out of phase with each other and cancel out, while sound coming straight down the tube’s length reaches the capsule in phase and gets amplified.
This design creates a “sound spotlight.” The longer the tube, the better the microphone rejects low-frequency noise coming from the sides. This is why pro shotgun mics have visibly longer barrels than budget models — the tube length directly controls how much ambient rumble gets filtered out.
Polar Pattern: Supercardioid and Hypercardioid
Most shotgun microphones use either a supercardioid or hypercardioid polar pattern. Both provide tighter side rejection than a standard cardioid microphone. The trade-off is a small rear pickup lobe — the mic picks up some sound from directly behind it, so boom operators must monitor rear noise sources carefully.
This narrow pickup pattern is what allows a shotgun mic to isolate one person’s voice in a crowded room or outdoors, as long as the mic points directly at the subject’s mouth.
Types of Shotgun Microphones: Short, Long, and Super
- Short shotgun mics: Best for close-up shots and electronic news gathering (ENG). Work well inside and at typical interview distance (3–4 feet).
- Long shotgun mics: Superior side rejection for outdoor use and longer distances. The extended tube kills more ambient noise before it hits the capsule.
- Super shotgun mics: The most directional type. Effective for both close and distant subjects, but pick up noticeable rear noise through the rear lobe.
Shotgun Microphone Specifications
Professional shotgun mics share a consistent set of specs that determine recording quality. The table below shows the range found in current 2026 models.
| Specification | Typical Range | What It Means |
|---|---|---|
| Polar pattern | Supercardioid or hypercardioid | Tighter side rejection than standard cardioid |
| Diaphragm size | 14mm (newer models) | Larger diaphragm captures more detail |
| Tube length | 100mm (professional standard) | Longer tube = better low-frequency off-axis rejection |
| Self-noise | 12–20 dB-A | Lower numbers = less hiss in quiet scenes |
| Power | 48V phantom power (XLR models) | Required; no phantom power = no signal |
| Impedance | 2–3 kOhm | Higher than standard XLR mics (50–200 Ohm) |
| Connector | 3.5mm or XLR | 3.5mm for on-camera; XLR for professional recorders |
Choosing a Shotgun Microphone: What Your Budget Buys in 2026
The right shotgun mic depends on your use case and budget. Audio-Technica released two new models in March 2026: the ATV-SG1 at $199 with a 14mm diaphragm and 100mm tube, and the budget ATV-SG1LE at $99. The Lectrosonics S1, expected in late 2026, targets high-end location sound at $1,639. Mid-range options like the Sennheiser MKE 600 ($329) and the RØDE Video Mic NTG ($300–$400) remain solid choices for serious creators who need consistent dialogue quality.
If you are starting out and want a capable first shotgun without overspending, check out our roundup of the best cheap shotgun microphones that still deliver clean audio.
| Model | Price | Best For |
|---|---|---|
| Audio-Technica ATV-SG1 | $199 | All-around prosumer video |
| Audio-Technica ATV-SG1LE | $99 | Budget-conscious creators |
| Deity Vic D4 Mini | $50 | Absolute-budget on-camera use |
| Sennheiser MKE 600 | $329 | Mid-range professional recording |
| RØDE Video Mic NTG | $300–$400 | Boom and on-camera hybrid use |
| Lectrosonics S1 | $1,639 | High-end location sound and sports |
| Sony ECM-778 | Premium | High-end premium production |
Placement Rules That Actually Work
Position the shotgun microphone 3 to 4 feet from the subject for clear dialogue. For overhead boom use, keep the mic 2 to 3 feet above the speaker’s head — never higher than 4 feet overhead, or the voice sounds thin and ambient. The mic must point directly at the sound source; even a slight off-axis angle lets more room noise into the track.
One common mistake: thinking the long tube lets you record from across the room. The tube cancels side noise — it does not amplify distant sound.
Where Shotgun Mics Fail (And What to Do Instead)
Shotgun microphones perform poorly indoors due to their interference tube design. Room reflections enter the side slots and disturb phase cancellation, creating comb-filtering that makes dialogue sound “boxy” or hollow. In small rooms or untreated spaces, a lavalier microphone or a standard cardioid condenser often produces cleaner audio.
Outdoors, shotgun mics excel — just always use the included foam windscreen or a furry windjammer to stop wind noise from hitting the capsule.
Final Placement and Power Checklist
- Confirm the recorder supplies 48V phantom power if using an XLR shotgun — no power, no sound.
- Position the mic 3 to 4 feet from the subject, pointed directly at the mouth.
- Keep overhead boom height under 4 feet to prevent thinned dialogue.
- Attach the foam windscreen for any outdoor shooting.
- Check that you chose the right mic length: short for indoor/close work, long for outdoor/distant scenes.
FAQs
Does a shotgun microphone need phantom power?
Most professional XLR shotgun mics require 48V phantom power to operate. Without it, they produce no signal at all. Some on-camera models with 3.5mm connectors run on internal batteries instead, so check the connector type before buying.
Can I use a shotgun microphone indoors?
You can, but the interference tube design makes them prone to comb-filtering in small rooms. Indoor reflections disturb the tube’s phase cancellation, creating a hollow or “boxy” sound. For untreated rooms, a lavalier or standard cardioid microphone is usually a better choice.
How far can a shotgun mic pick up sound?
The tube rejects side noise but does not amplify distant sound — ambient noise fills the gap and ruins the recording.
What is the difference between a shotgun and a cardioid microphone?
A shotgun mic uses a supercardioid or hypercardioid pattern with an interference tube that provides much tighter side rejection than a standard cardioid. This makes shotgun mics better for isolating a single sound source in noisy environments, especially outdoors.
Do I need a windscreen for a shotgun microphone?
Yes. Wind traveling across the interference tube’s side slots creates audible rumble that ruins the recording. A foam windscreen or fuzzy windjammer is essential for any outdoor use and helps indoors if the subject is close to an air vent.
References & Sources
- B&H eXplora. “What Is a Shotgun Microphone?” Explains interference tube physics and placement.
- Forbes. “Audio-Technica Unveils Two New Shotgun Microphones for Video Creators.” Details ATV-SG1 and ATV-SG1LE specs and pricing.
- Shure. “Choosing a Shotgun Microphone: The Long and Short of It.” Compares polar patterns and types.
- NewsShooter. “Lectrosonics S1 Lightweight RF-Bias Shotgun Microphone.” Reports on the S1 availability and target market.
Mo Maruf
I created WellFizz to bridge the gap between vague wellness advice and actionable solutions. My mission is simple: to decode the research and give you practical tools you can actually use.
Beyond the data, I am a passionate traveler. I believe that stepping away from the screen to explore new environments is essential for mental clarity and physical vitality.