refactor: oscillator "process" method name

inc/Adder.h

@@ -13,7 +13,7 @@ struct Adder {
         for (size_t i = 0; i < sample_count; i++) {
             float sample = 0.0f;
             for (Oscillator* osc : oscillators) {
-                sample += osc->GenerateSample();
+                sample += osc->Process();
             }
 
             signal[i] = sample;

inc/Oscillator.h

@@ -31,5 +31,5 @@ class Oscillator {
     float GetFreq() { return m_freq; }
     void SetFreq(float freq);
     void Reset();
-    float GenerateSample();
+    float Process();
 };

src/Oscillator.cpp

@@ -45,7 +45,7 @@ void Oscillator::SetFreq(float freq) {
     m_phase_dt = (this->*m_dt_function)(freq);
 }
 
-float Oscillator::GenerateSample() {
+float Oscillator::Process() {
     return (this->*m_osc_function)() * m_volume;
 }
 

src/Synth.cpp

@@ -71,7 +71,7 @@ void Synth::Trigger(Note input) {
 }
 
 void Synth::apply_filter_lfo() {
-    float dt = m_lfo->GenerateSample();
+    float dt = m_lfo->Process();
     Filter* filter = (Filter*)m_effects[1];
     float freq = filter->GetFreq();
     //todo: check formula