inverse FIR filter
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[ih]=invFIR(type,h,Nfft,Noct,L,range,reg,window)
- optional GUI included-
inputs overview
---------------
type:
1. 'linphase': symmetric two-sided response compensating magnitude while maintaining original phase information
2. 'minphase': one-sided response compensating magnitude with minimal possible group delay
3. 'complex': asymmetric two-sided response compensating magnitude and phasehttp://www.downloadplex.com/index.php?a=admin&b=programs&os=Scripts&add
h:
mono or stereo impulse response (column vector)
Nfft:
FFT length for calculating inverse FIR
Noct:
optional fractional octave smoothing (e.g. Noct=3 => 1/3 octave smooth, Noct=0 => no smoothing)
L:
length of inverse filter (truncates Nfft-length filter to L)
range:
frequency range to be regulated (e.g. [32 16000] => 32 Hz to 16 kHz)
%
% reg:
amount of regularization (in dB) inside (reg(1)) and outside (reg(2)) the specified range (example: reg=[20 -6] => inverts frequency components within 'range' with a max. gain of 20 dB,
while dampening frequencies outside 'range' by 6 dB)
window:
window=1 applies a hanning window to the inverse filter
Free download from Shareware Connection - [ih]=invFIR(type,h,Nfft,Noct,L,range,reg,window) - optional GUI included- inputs overview --------------- type: 1. 'linphase': symmetric two-sided response compensating magnitude while maintaining original phase information 2.
Version: 1.0 | Size: 20 KB | Platform: Matlab, Scripts
Released Date: 25-03-2013 | Rating: 0 | Title: inverse FIR filter
Author Url: http://www.mathworks.com
Program Info Url: http://www.mathworks.com
Download Url: http://www.mathworks.com/matlabcentral/fx_files/19294/1/Inverse%20Filter.zip
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