We need to know the sample rate (in samples per second). Sample rate:

Enter the length of the finite-impulse response, in samples. The larger the value, the more accurate the filter, but the slower its execution. Impulse length:

If you are going to execute the generated filter on a fixed-point processor, you will want to know how the filter behaves when the coefficents are truncated to n bits. To find out, enter the value of n in the box. (If you are not interested in this feature, leave the field blank. For more information, click here.) Truncate coefficients to bits

By default, the frequency response graph has a linear magnitude scale. If that is what you want, leave the following box blank. If you want a logarithmic magnitude scale in dB, enter the lower limit of the magnitude scale in dB here (e.g. -80). Lower limit (dB), or blank for linear scale:

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