| a1 (defined in sig_tone_notch_coeffs_t) | sig_tone_notch_coeffs_t | |
| a2 (defined in sig_tone_notch_coeffs_t) | sig_tone_notch_coeffs_t | |
| b1 (defined in sig_tone_notch_coeffs_t) | sig_tone_notch_coeffs_t | |
| b2 (defined in sig_tone_notch_coeffs_t) | sig_tone_notch_coeffs_t |
1.4.7