seiichi horie
Synthesizer based on the Unzen / Nucleo F746ZG
Dependencies: amakusa mbed-dsp mbed shimabara ukifune unzen_nucleo_f746
Fork of
skeleton_unzen_nucleo_f746
by 
seiichi horie
雲仙フレームワークのテストとして作っているプロジェクトです。中身はどんどん変っていきます。 説明はDSP空挺団の「シンセサイザー」カテゴリーを参照してください。初回は「ドッグフードを食べる」です。
Diff: signal_processing.cpp
- Revision:
- 22:dc2cbe8db9d9
- Parent:
- 18:b9b1116f8768
- Child:
- 26:e99f71165e19
--- a/signal_processing.cpp Sat Feb 04 15:05:44 2017 +0000
+++ b/signal_processing.cpp Sun Feb 05 06:16:49 2017 +0000
@@ -54,6 +54,7 @@
// Duty Cycle of VFO
void SignalProcessing::set_vfo_duty_cycle( float duty )
{
+ duty *= 0.5f; // [0.0,0.5]
this->enter_critical_section(); // forbidden interrrupt.
this->note->set_vfo_duty_cycle( duty );
this->leave_critical_section(); // now, ok to accept interrupt.
@@ -76,7 +77,39 @@
this->leave_critical_section(); // now, ok to accept interrupt.
}
+ // Set the lpf/hpf/bpf
+void SignalProcessing::set_filter_mode( svf_mode mode )
+{
+ this->enter_critical_section(); // forbidden interrrupt.
+ this->note->set_filter_mode( mode );
+ this->leave_critical_section(); // now, ok to accept interrupt.
+}
+ // Set the Q value.
+void SignalProcessing::set_filter_Q( float Q )
+{
+ // range of the parameter Q ( volume input ) is [0,1.0].
+ // Transform it to [0.1,10]
+ Q *= 9.9f;
+ Q += 0.1f;
+
+ this->enter_critical_section(); // forbidden interrrupt.
+ this->note->set_filter_Q( Q );
+ this->leave_critical_section(); // now, ok to accept interrupt.
+}
+
+ // Set the f_factor value.
+void SignalProcessing::set_filter_f_factor( float f_factor )
+{
+ // range of the parameter f_factor ( volume input ) is [0,1.0].
+ // Transform it to [0.1,5.0]
+ f_factor *= 4.9f;
+ f_factor += 0.1f;
+
+ this->enter_critical_section(); // forbidden interrrupt.
+ this->note->set_filter_f_factor( f_factor );
+ this->leave_critical_section(); // now, ok to accept interrupt.
+}
/************************** skeleton dependent methond. ***********************/
// essential members. Do not touch.