Biquad Coefficient Calculator

Calculate digital filter coefficients for low-pass, high-pass, band-pass, notch, peak, and shelving filters

Filter Type i

Frequency (Hz) i

Q Factor i

Gain (dB) i

Sampling Rate (Hz) i

Options

Normalize Gain Dark Mode

Filter Coefficients

b₀

b0 Coefficient

b₁

b1 Coefficient

b₂

b2 Coefficient

a₁

a1 Coefficient

a₂

a2 Coefficient

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