Monthly Archives: October 2013

Pole-Zero placement v2

Pair Pole mag Pole angle Pair Zero mag Zero angle Sample rate (Hz) linearlog Plot A new pole-zero calculator An JavaScript remake of the old Java-based pole-zero placement applet—visit that page for tips on pole-zero locations for standard biquads. The … Continue reading

Posted in Biquads, Digital Audio, Filters, IIR Filters, Widgets | 11 Comments

Biquad calculator v2

Type:lowpasshighpassbandpassnotchpeaklow shelfhigh shelfone-pole lpone-pole hp Plot:linearlog Sample rate (Hz) Fc (Hz) Q Gain (dB) Here’s an update of the biquad calculator. It adds one-pole highpass and lowpass filters, and frequency, Q, and gain sliders. The sliders cover the range of … Continue reading

Posted in Biquads, Digital Audio, Filters, IIR Filters, Widgets | 60 Comments