Understanding microphone polar patterns is one of the most useful ways to improve your recordings and live sound results.
A polar pattern describes how sensitive a microphone is to sound arriving from different directions. Some microphones capture sound mainly from the front, while others capture sound from all directions or from both the front and rear.
Polar pattern choice affects:
- How much background sound is captured
- How much room ambience is included
- How well a microphone isolates a sound source
- How resistant a microphone is to feedback in live environments
- How natural or controlled a recording sounds
Whether you are recording in a studio or working in live sound, understanding polar patterns makes it much easier to choose the right microphone for the job.
If you are still exploring microphone basics, you may find it helpful to first read our guides on choosing a microphone for studio recording or live performance, as polar pattern choice is often part of a wider decision.
What is a microphone polar pattern?
A microphone polar pattern is a visual representation of how a microphone responds to sound coming from different angles.
Imagine standing in front of a microphone and speaking. Now imagine moving around the microphone in a circle while continuing to speak. The polar pattern shows how the microphone’s sensitivity changes as the sound source moves.
Some microphones are designed to capture sound mainly from the front, while others capture sound more evenly from all directions.
Polar patterns influence:
- Clarity
- Separation between instruments
- Room ambience
- Feedback control
- Stereo recording techniques
- Microphone placement options
Different patterns suit different recording situations, which is why some microphones offer multiple selectable patterns.
Why polar patterns matter in real recording situations
In both studio and live environments, microphones rarely capture a sound source in complete isolation.
Other sounds may include:
- room reflections
- other instruments
- monitor speakers
- audience noise
- environmental sound
Choosing the right polar pattern can help control how much of this additional sound is captured.
For example:
A directional microphone can help reduce spill from nearby instruments.
A less directional microphone may capture more natural room ambience.
Understanding this balance helps you choose a microphone that suits both the sound source and the environment.
Cardioid
Cardioid microphones, like the ARIA 2 and ZETA are the most widely used polar pattern.
Cardioid microphones capture sound primarily from the front while reducing sensitivity to sound from the rear.
This makes them versatile and suitable for many applications.
Cardioid microphones are often used for:
- Vocals
- Podcasting
- Acoustic instruments
- Guitar amplifiers
- Drum overheads
- Live performances
Because cardioid microphones reduce sound from behind the microphone, they are often effective at controlling feedback in live environments.
They also provide a good balance between isolation and natural sound in studio recording.
Omnidirectional
Omnidirectional microphones capture sound evenly from all directions.
Because they do not prioritise one direction over another, omni microphones often sound very natural and open.
Omnidirectional microphones:
- Capture more room ambience
- Do not exhibit proximity effect in the same way as directional microphones
- Can provide consistent tonal balance regardless of positioning angle
Omni patterns are often used for:
- Room microphones
- Ensemble recording
- Acoustic instruments
- Ambient recording
- Capturing natural spatial detail
They are particularly useful when the acoustic environment contributes positively to the overall sound.
Figure-8
Figure-8 microphones capture sound from both the front and rear while rejecting sound from the sides.
This pattern is also known as bidirectional.
Figure-8 microphones, like the SIGMA 2 and DELTA 2, are useful in situations where two sound sources need to be captured while rejecting sound from the sides.
Applications include:
- Recording two vocalists facing each other
- Interviews
- Duets
- Mid-side stereo recording
- Blumlein stereo recording techniques
Because figure-8 microphones strongly reject sound from the sides, they can be useful for controlling unwanted spill in certain setups.
Supercardioid
Supercardioid microphones, like the SOLO and PODCAST PRO, provide a narrower front pickup area compared to cardioid microphones.
They offer greater side rejection, which can improve isolation between sound sources.
Supercardioid patterns are often used when:
- Increased separation is required
- Stage volume is high
- Multiple sound sources are positioned close together
They are commonly used for:
- Live vocals
- Drum recording
- Amplified instruments
- Broadcast applications
Because supercardioid microphones include a small rear pickup area, positioning relative to speakers or other sound sources should be considered carefully.
Hypercardioid
Hypercardioid microphones provide an even tighter directional pickup than supercardioid patterns.
They can offer strong isolation in challenging environments.
Hypercardioid microphones may be chosen when:
- Maximum isolation is required
- Stage environments are particularly loud
- Precise control over captured sound is important
As with supercardioid microphones, careful positioning helps achieve the best results.
Subcardioid
Subcardioid patterns sit between omnidirectional and cardioid designs.
They provide a more natural sense of space than cardioid microphones while still maintaining some directionality.
They can be useful when:
- A balance between isolation and room sound is desired
- The acoustic environment contributes positively to the recording
- A more open sound is preferred without fully capturing all room reflections
Shotgun and lobar patterns
Shotgun microphones use a highly directional pickup pattern often referred to as lobar.
They are designed to capture sound from a focused area in front of the microphone while reducing sound from the sides.
Shotgun microphones are commonly used in:
- Film production
- Broadcast environments
- Theatre
- Dialogue capture
- Location recording
They are typically mounted on boom arms or stands rather than used as handheld vocal microphones.
Proximity effect and directional microphones
Directional microphones such as cardioid, supercardioid and figure-8 patterns exhibit proximity effect.
Proximity effect refers to an increase in low-frequency response when a sound source is positioned very close to the microphone.
This can:
- Add warmth to vocals
- Increase perceived depth
- Create tonal variation depending on distance
Understanding proximity effect can help achieve more consistent results when positioning microphones.
Omnidirectional microphones do not exhibit proximity effect in the same way.
Polar patterns in multi-pattern microphones
Some microphones, like the SATURN 2, ORPHEUS and STC-3X, offer selectable polar patterns, allowing them to adapt to different recording situations.
Microphones with sweepable polar patterns, like the MERCURY, allow you to adjust the directionality continuously rather than switching between fixed settings, making it possible to fine-tune how much room sound, isolation and tonal balance is captured for each recording situation.
Multi-pattern microphones provide flexibility for:
- Different instruments
- Different room environments
- Stereo recording techniques
- Varying levels of isolation
- Evolving recording needs
This flexibility allows one microphone to perform multiple roles depending on the chosen pattern.
How to choose the right polar pattern
Choosing a polar pattern depends on the sound source, environment and desired result.
Cardioid is often suitable when:
- isolation is needed
- feedback control is important
- versatility is required
Omnidirectional may be suitable when:
- the room sounds good
- a natural sound is preferred
- consistent tonal balance is important
Figure-8 may be suitable when:
- recording two sources
- using stereo recording techniques
- side rejection is useful
Supercardioid or hypercardioid may be suitable when:
- strong isolation is required
- stage volume is high
- separation between sources is important
Quick comparison of polar patterns
Cardioid: Front-focused pickup with rear rejection. Versatile and widely used.
Omnidirectional: Captures sound evenly from all directions. Natural and open sound.
Figure-8: Captures sound from front and rear while rejecting sound from the sides.
Supercardioid: Tighter directional control than cardioid with improved side rejection.
Hypercardioid: Even narrower pickup pattern for strong isolation.
Subcardioid: Balanced combination of openness and directionality.
Shotgun / lobar: Highly directional pattern used for dialogue and broadcast applications.
Final thoughts
Polar patterns shape how a microphone interacts with the surrounding environment.
Understanding how different patterns respond to sound helps you make more confident decisions when choosing and positioning microphones.
Small changes in microphone directionality can significantly influence clarity, separation and spatial character in both studio and live recording.
Developing familiarity with polar patterns allows you to adapt more easily to different recording situations and achieve more consistent results.