 Fernando Pablo Lopez-Lezcano
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6230776a0b
use interp1 instead of spline so we can try different interpolation methods, cubic seems to work a little better for our purposes
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10 jaren geleden |
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Fernando Pablo Lopez-Lezcano
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247fa323d8
add one more point that is later not used to fit the spline so that the transition between the two frequency regions is smoother
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10 jaren geleden |
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Fernando Pablo Lopez-Lezcano
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ad9a2c02fd
fit the spline only for the high frequencies, for low frequencies keep the A2B coefficients untouched, make graphs of filters better
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10 jaren geleden |
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Fernando Pablo Lopez-Lezcano
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afa32fdf1d
add maximum amount of boost to limit filter ends after fitting the spline, this still does not work out in low frequencies, perhaps we need to fit the spline only in the upper frequency range and just leave the A2B matrix alone in the low frequency range
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10 jaren geleden |
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Fernando Pablo Lopez-Lezcano
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fdaeb3574a
change the way the filter is designed, get a spline to interpolate a smooth frequency response curve, plot some graphics to see what is going on
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10 jaren geleden |
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Fernando Pablo Lopez-Lezcano
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2e6c00810d
sphear_fir_design: change completely to use supplied W and XYZ filter shapes for the high frequency region
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10 jaren geleden |
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Fernando Pablo Lopez-Lezcano
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11f36731c6
add sphear_fir_design.m, design a matrix of FIR filters that makes up the A2B matrix
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10 jaren geleden |
