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sci.FIR-filter-Kaiser-window Calculator
Calculates the Kaiser window FIR filter order N ≈ (A−7.95)/(2.285×Δω) and beta parameter β from passband ripple and transition bandwidth requirements. Kaiser window is the most flexible single-parameter window — β = 0 gives rectangular; β = 5.65 approximates Hamming; β = 8.96 approximates Blackman.
Inputs
Fp Hz
Reference formula or conversion factor shown for context.
Fs Hz
Reference formula or conversion factor shown for context.
Atten Db
Reference formula or conversion factor shown for context.
Fsample Hz
Cycles per second (Hz). Audible sound: 20 Hz – 20 kHz. Make sure units match what the formula expects.
Results
filter order N
Sample size or count used in the calculation.
Kaiser window β
Sample size or count used in the calculation.
normalised cutoff fc
Sample size or count used in the calculation.
transition bandwidth Δf/fs
The computed width.
N ≈ (A−8)/(2.285·2π·Δf)
Sample size or count used in the calculation.
β interpretation
Qualitative summary of what the computed numbers mean in practical terms.