Filter Design in Matlab

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mehboob_iiui

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hi, I have to design some filters for processing speech in matlab, I know the basic commands but how do I adjust the cutoff frequencies in HZ , how to convert them into the filter parameters
 

I am using fdatool, but the parameters are from 0.1 to 0.9 or something like that,
how do I translate a 4khz low pass filter into these coordinates.
 

that is the normalized frequency (0 to 1) multiply by Fs
 

use sptool. u can directly give sampling frequency and band of operation

to get the filter coefficients
[b,a]=filtdes('getfilt');
will do
 

hi, eu tenho que projetar alguns filtros para o discurso processando no matlab, mim sei os comandos básicos mas como eu ajusto as freqüências de interrupção no hertz, como convertê-lo nos parâmetros do filtro
 

In FDAtool of Matlab you can quantize the samples as per your requirement and then you can use it. Try it once.
 

filter

yes it is better

Tanish
 

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