ESP-beatsy · Biquad Calculator

Filter settings

Equations match the current AudioFilterBiquad implementation. Coefficients are normalized and quantized to Q30.

Frequency response

Frequency1000 Hz
Gain at frequency—
FormatQ30

Magnitude response in dB, from 0 Hz to Nyquist.

Coefficients and C++

The direct Q30 form avoids recalculating coefficients on-device. Generated setter calls use compile-time AUDIO_SAMPLE_RATE_EXACT; match it to the selected rate.