What it does:
Lets you precisely boost or cut specific frequencies.
You can control:
Frequency (the centre point)
Gain (how much boost/cut)
Q Factor (how wide or narrow the effect is)
When to use it:
To fix specific problem areas (e.g. harshness at 3kHz or muddy bass at 120Hz)
Fine-tuning vocals, speech clarity, or instrument balance
Very flexible for audio professionals or advanced tuning
What it does:
Boosts or cuts all frequencies below a chosen frequency (shelf effect).
Frequencies above the selected point are unaffected.
When to use it:
To increase or decrease bass across the whole low end
Ideal for compensating for room boominess or adding warmth to thin sound
What it does:
Boosts or cuts all frequencies above a chosen frequency.
Frequencies below the selected point are unaffected.
When to use it:
To tame harsh treble or add brightness and clarity
Perfect for adjusting sibilance, cymbals, or room reflections
What it does:
Cuts all frequencies below a certain point, with a steep 12 dB per octave slope.
Higher slope = more aggressive filtering
When to use it:
To remove deep bass or rumble (e.g. from subwoofers, plosives, or low-end noise)
Great for protecting small speakers from trying to play low frequencies they can’t handle
What it does:
Also cuts frequencies below a certain point, but with a gentler 6 dB per octave slope.
Slower fade-out than 12dB version
When to use it:
To subtly clean up the low end while keeping some warmth
Useful when a full cut feels too thin or unnatural
| Filter Type | Affects | Use For |
|---|---|---|
| Parametric EQ | Any specific frequency | Surgical corrections and precise tuning |
| Low Shelving | Frequencies below X Hz | Boosting/cutting bass |
| High Shelving | Frequencies above X Hz | Boosting/cutting treble |
| 12dB Highpass | Cuts below X Hz (steep) | Blocking sub-bass, protecting small speakers |
| 6dB Highpass | Cuts below X Hz (gentle) | Subtle low-end clean-up |