63 	double  *coef)			// filter coefficients  in sinc_coef()  argument
74 			coef[i] = sin(bandwidth * alpha) / (M_PI * alpha);  in sinc_coef()
79 			coef[i] = sin(bandwidth * alpha) / (M_PI * alpha);  in sinc_coef()
81 		coef[i++] = bandwidth / M_PI;  in sinc_coef()
84 		coef[i] = coef[order - i];  in sinc_coef()
99 poly_conv(double	*coef,		// filter coef array  in poly_conv()  argument
109 		double *coef_end = coef + order;  in poly_conv()
111 		while ((coef <= coef_end) && (data < data_end)) {  in poly_conv()
112 			sum += *coef * *--data_end;  in poly_conv()
113 			coef += inc_coef;  in poly_conv()
156 	coef = new double[order + 1];  in ResampleFilter()
157 	sinc_coef(fold, order, coef);		// required bandwidth = PI/fold  in ResampleFilter()
199 		*out_ptr++ = double2short(convolve(coef, in_buf, i + 1) +  in decimate_noadjust()
200 		    convolve(coef + i + 1, state + i, order - i));  in decimate_noadjust()
202 		*out_ptr++ = double2short(convolve(coef, in_buf + i - order,  in decimate_noadjust()
264 		*out_ptr++ = double2short(up * poly_conv(coef + coef_offset,  in interpolate_noadjust()
271 			*out_ptr++ = double2short(up * (poly_conv(coef + j,  in interpolate_noadjust()
273 			    coef + coef_offset, order - coef_offset, up, state,  in interpolate_noadjust()
281 		*out_ptr++ = double2short(up * (poly_conv(coef + j,  in interpolate_noadjust()
283 		    coef + coef_offset, order - coef_offset, up, state,  in interpolate_noadjust()
355 		*out++ = double2short(up * poly_conv(coef + coef_offset,  in filter_noadjust()
363 			*out++ = double2short(up * (poly_conv(coef + j,  in filter_noadjust()
365 			    coef + coef_offset, order - coef_offset, up, state,  in filter_noadjust()
374 		*out++ = double2short(up * (poly_conv(coef + j, order - j, up,  in filter_noadjust()
375 		    in_buf, size) + poly_conv(coef + coef_offset,  in filter_noadjust()