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Synthesis
Analysis
Filters
1 pole LPF for smooth parameter changes
1-RC and C filter
18dB/oct resonant 3 pole LPF with tanh() dist
1st and 2nd order pink noise filters
3 Band Equaliser
303 type filter with saturation
4th order Linkwitz-Riley filters
All-Pass Filters, a good explanation
Another 4-pole lowpass…
Bass Booster
Biquad C code
Biquad, Butterworth, Chebyshev N-order, M-channel optimized filters
Butterworth Optimized C++ Class
C++ class implementation of RBJ Filters
C-Weighed Filter
Cascaded resonant lp/hp filter
Cool Sounding Lowpass With Decibel Measured Resonance
DC filter
Delphi Class implementation of the RBJ filters
Digital RIAA equalization filter coefficients
Direct Form II biquad
Direct form II
Fast Downsampling With Antialiasing
Formant filter
Frequency warped FIR lattice
Hilbert Filter Coefficient Calculation
Hiqh quality /2 decimators
Karlsen
Karlsen Fast Ladder
LP and HP filter
LPF 24dB/Oct
Lowpass filter for parameter edge filtering
MDCT and IMDCT based on FFTW3
Moog Filter
Moog VCF
Moog VCF, variation 1
Moog VCF, variation 2
Notch filter
One pole LP and HP
One pole filter, LP and HP
One pole, one zero LP/HP
One zero, LP/HP
One-Liner IIR Filters (1st order)
Output Limiter using Envelope Follower in C++
Peak/Notch filter
Perfect LP4 filter
Pink noise filter
Plot Filter (Analyze filter characteristics)
Plotting R B-J Equalisers in Excel
Polyphase Filters
Polyphase Filters (Delphi)
Poor Man’s FIWIZ
Prewarping
RBJ Audio-EQ-Cookbook
RBJ Audio-EQ-Cookbook
Remez Exchange Algorithm (Parks/McClellan)
Remez Remez (Parks/McClellan)
Resonant IIR lowpass (12dB/oct)
Resonant filter
Resonant low pass filter
Reverb Filter Generator
Simple Tilt equalizer
Simple biquad filter from apple.com
Spuc’s open source filters
State Variable Filter (Chamberlin version)
State Variable Filter (Double Sampled, Stable)
State variable
Stilson’s Moog filter code
Time domain convolution with O(n^log2(3))
Time domain convolution with O(n^log2(3))
Type : LPF 24dB/Oct
Various Biquad filters
Windowed Sinc FIR Generator
Zoelzer biquad filters
Effects
Other
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Biquad C code
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Biquad C code
¶
Author or source:
Tom St Denis
Created:
2002-02-10 12:33:52
Linked files:
biquad.c
.
notes
¶
Implementation of the RBJ cookbook, in C.
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