From 208a84a14ccbecd5c3b870974a724f210e158660 Mon Sep 17 00:00:00 2001
From: heck <heck@pep.foundation>
Date: Fri, 13 Sep 2024 20:00:44 +0200
Subject: [PATCH] instr_fm - tuning

---
 src/instr_fm.cc | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/instr_fm.cc b/src/instr_fm.cc
index d591b01..0b93d76 100644
--- a/src/instr_fm.cc
+++ b/src/instr_fm.cc
@@ -1,10 +1,12 @@
 #include "instr_fm.hh"
 #include "daisysp.h"
+#include "utils.hh"
 
 namespace Heck {
     namespace Instrument {
 
-        FM::FM(){
+        FM::FM()
+        {
             init();
         }
 
@@ -30,8 +32,6 @@ namespace Heck {
 
         void FM::ctl(unsigned int ctl_nr, float val)
         {
-            float width = 0.1;
-
             switch (ctl_nr) {
                 case 0:
                     osc.SetFrequency(31 + (val * 320.));
@@ -39,9 +39,10 @@ namespace Heck {
                 case 1:
                     volEnv.SetTime(dsp::ADENV_SEG_DECAY, val * 2.);
                     break;
-                case 2:
-                    osc.SetRatio(1 - (width / 2.) + val * width);
-                    break;
+                case 2: {
+                    float ratio_val = scalen_min_max(val, 1., 3.);
+                    osc.SetRatio(ratio_val);
+                } break;
                 case 3:
                     osc.SetIndex(val * 0.1);
                     break;