From 233d85d833e080d4c6b435433bc1ebdec2d9d06c Mon Sep 17 00:00:00 2001
From: heck <heck@pep.foundation>
Date: Thu, 12 Sep 2024 05:26:37 +0200
Subject: [PATCH] NICE Tuning of instr FM

---
 src/instr_fm.cc | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/src/instr_fm.cc b/src/instr_fm.cc
index fdaeaa7..7d5c443 100644
--- a/src/instr_fm.cc
+++ b/src/instr_fm.cc
@@ -7,13 +7,13 @@ namespace Heck {
         void FM::init()
         {
             osc.Init(samplerate);
-            osc.SetFrequency(100);
+            osc.SetFrequency(40);
             osc.SetRatio(0.);
             osc.SetIndex(0.);
 
             volEnv.Init(samplerate);
             volEnv.SetTime(dsp::ADENV_SEG_ATTACK, .0001);
-            volEnv.SetTime(dsp::ADENV_SEG_DECAY, 1.);
+            volEnv.SetTime(dsp::ADENV_SEG_DECAY, 0.7);
             volEnv.SetMax(1);
             volEnv.SetMin(0);
         }
@@ -21,26 +21,25 @@ namespace Heck {
         void FM::trigger()
         {
             volEnv.Trigger();
+            osc.Reset();
         }
 
         void FM::ctl(unsigned int ctl_nr, float val)
         {
+            float width = 0.1;
+
             switch (ctl_nr) {
                 case 0:
-                    osc.SetFrequency(val * 200.);
+                    osc.SetFrequency(31 + (val * 320.));
                     break;
                 case 1:
                     volEnv.SetTime(dsp::ADENV_SEG_DECAY, val * 2.);
                     break;
                 case 2:
-                    osc.SetRatio(val * 1.);
+                    osc.SetRatio(1 - (width / 2.) + val * width);
                     break;
                 case 3:
-                    osc.SetIndex(val * 1.);
-                    break;
-                case 4:
-                    break;
-                case 5:
+                    osc.SetIndex(val * 0.1);
                     break;
             }
         }