Project 123
24dB/ octave Low-pass Filter Circuit Composed of the Same Parameters (μPC882) - Filter_Circuit - Basic_Circuit - Circuit Diagram - SeekIC.com
Dayton Audio - 2.5k-LPF-4 Low Pass Speaker Crossover 2,500 Hz 12 dB/Octave
Function Reference: fir1
DSP Low-pass FIR filter
Function Reference: buttord
Why do the orders of hi/low pass filters go in 6 dB increments? - Sound Design Stack Exchange
Low-Pass Filter Using Operational Transconductance Amplifiers - MATLAB & Simulink
Second Order Passive Crossovers, 12 dB per Octave
Q. What are filters and what do they do?
Octave RF Filters
KenSeibert.Com Audio Projects
Low Pass Filter - Passive RC Filter Tutorial
Low-Pass Filter - Audacity Manual
FREQUENCY FILTERING in practice
SIM965 - Analog Filter
Electronic applications - OpenLearn - Open University
Thor demystified 13: An introduction to filters – Reason Studios
