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int estLen (double Hz, int nBand, double* Bands, double* Ripple)

Estimate the length of a multi-band filter.

Documentation

Estimate the number of terms needed for a multi-band filter. The desired filter response is described as a series of bands with corresponding limits on the ripple. The filter state is not affected.
Returns:
The estimated number of terms needed for a filter with the specified response.
Parameters:
nBand - The number of pass or stop bands in the filter response.
Bands - A list of band frequency edges.
Ripple - The desired ripple in a pass-band or attenuation in a stop-band for each frequency band.

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