429   gdouble omega;  in calculate_omega()  local
432     omega = G_PI;  in calculate_omega()
434     omega = 0.0;  in calculate_omega()
436     omega = 2.0 * G_PI * (freq / rate);  in calculate_omega()
438   return omega;  in calculate_omega()
476     gdouble gain, omega, bw;  in setup_peak_filter()  local
480     omega = calculate_omega (band->freq, rate);  in setup_peak_filter()
493     band->a1 = (-2.0 * cos (omega)) / b0;  in setup_peak_filter()
495     band->b1 = (2.0 * cos (omega)) / b0;  in setup_peak_filter()
514     gdouble gain, omega, bw;  in setup_low_shelf_filter()  local
519     omega = calculate_omega (band->freq, rate);  in setup_low_shelf_filter()
529     b0 = egp + egm * cos (omega) + delta;  in setup_low_shelf_filter()
531     band->a0 = ((egp - egm * cos (omega) + delta) * gain) / b0;  in setup_low_shelf_filter()
532     band->a1 = ((egm - egp * cos (omega)) * 2.0 * gain) / b0;  in setup_low_shelf_filter()
533     band->a2 = ((egp - egm * cos (omega) - delta) * gain) / b0;  in setup_low_shelf_filter()
534     band->b1 = ((egm + egp * cos (omega)) * 2.0) / b0;  in setup_low_shelf_filter()
535     band->b2 = -((egp + egm * cos (omega) - delta)) / b0;  in setup_low_shelf_filter()
554     gdouble gain, omega, bw;  in setup_high_shelf_filter()  local
559     omega = calculate_omega (band->freq, rate);  in setup_high_shelf_filter()
569     b0 = egp - egm * cos (omega) + delta;  in setup_high_shelf_filter()
571     band->a0 = ((egp + egm * cos (omega) + delta) * gain) / b0;  in setup_high_shelf_filter()
572     band->a1 = ((egm + egp * cos (omega)) * -2.0 * gain) / b0;  in setup_high_shelf_filter()
573     band->a2 = ((egp + egm * cos (omega) - delta) * gain) / b0;  in setup_high_shelf_filter()
574     band->b1 = ((egm - egp * cos (omega)) * -2.0) / b0;  in setup_high_shelf_filter()
575     band->b2 = -((egp - egm * cos (omega) - delta)) / b0;  in setup_high_shelf_filter()