FIIIR! - Design FIR & IIR Filters - From
TomRoelandts.com
Filter Settings
Filter type
Low-pass windowed-sinc FIR filter (more info in
How to Create a Simple Low-Pass Filter
).
High-pass Windowed-sinc FIR filter (more info in
How to Create a Simple High-Pass Filter
).
Band-pass windowed-sinc FIR filter (more info in
How to Create Simple Band-Pass and Band-Reject Filters
).
Band-reject windowed-sinc FIR filter (more info in
How to Create Simple Band-Pass and Band-Reject Filters
).
Moving-average FIR filter (more info in
The Moving Average as a Filter
and
Variations on the Moving Average
).
Low-pass single-pole IIR filter (more info in
Low-Pass Single-Pole IIR Filter
).
The ideal response is updated on the fly, but you still have to push the Compute Filter button below to recompute the filter.
Sampling rate [Hz]
Cutoff frequency
f
L
[Hz]
Transition bandwidth
b
L
[Hz]
Stopband attenuation
A
[dB]
Cutoff frequency
f
H
[Hz]
Transition bandwidth
b
H
[Hz]
Stopband attenuation
A
[dB]
Cutoff frequency
f
L
[Hz]
Transition bandwidth
b
L
[Hz]
Cutoff frequency
f
H
[Hz]
Transition bandwidth
b
H
[Hz]
Stopband attenuation
A
[dB]
Cutoff frequency
f
L
[Hz]
Transition bandwidth
b
L
[Hz]
Cutoff frequency
f
H
[Hz]
Transition bandwidth
b
H
[Hz]
Stopband attenuation
A
[dB]
Window type
{{wn}}
Length [samples]
Weighting function
{{wfn}}
Decay
Compute Filter
Reset
Disclaimer: This tool is made available in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Filter Characteristics
Filter code
{{cf}}
Status
{{ac.message}}