diff options
Diffstat (limited to 'src/devices/sound/flt_biquad.h')
-rw-r--r-- | src/devices/sound/flt_biquad.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/devices/sound/flt_biquad.h b/src/devices/sound/flt_biquad.h index ed4192ce44f..9ac3f820893 100644 --- a/src/devices/sound/flt_biquad.h +++ b/src/devices/sound/flt_biquad.h @@ -68,6 +68,11 @@ public: // Multiple-Feedback high-pass filter_biquad_device& opamp_mfb_highpass_setup(double r1, double r2, double c1, double c2, double c3); + // Differentiator band-pass + filter_biquad_device& opamp_diff_bandpass_setup(double r1, double r2, double c1, double c2); + void opamp_diff_bandpass_modify(double r1, double r2, double c1, double c2); + biquad_params opamp_diff_bandpass_calc(double r1, double r2, double c1, double c2); + protected: // device-level overrides |