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inverse FIR filter 1.0

  Date Added: August 06, 2013  |  Visits: 232

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 information2. 'minphase': one-sided response compensating magnitude with minimal possible group delay3. '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 FIRNoct: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

Requirements: No special requirements
Platforms: Matlab
Keyword: Dampening Dbwindowwindow Filter Frequencies Inside Lrangefrequency Nfftlength Noct Range Regamount Regularization Regulated Smooth Smoothing Smoothingllength Truncates
Users rating: 0/10

License: Freeware Size: 20.48 KB
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