Removed limiting preset values

because polyphone does so for some reason...

index.html

@@ -184,7 +184,6 @@ <h2 id="text_event"></h2>
      */
     const file = e.target.files[0];
 
-    e.target.onchange = undefined;
     document.getElementById("sf_upload").innerText = file.name;
     titleMessage.innerText = "Parsing SoundFont...";
 
@@ -210,6 +209,8 @@ <h2 id="text_event"></h2>
     // prepare midi interface
     window.manager = new Manager(audioContextMain, soundFontParser);
 
+    sfInput.onchange = undefined;
+    document.getElementById("bundled_sf").onclick = undefined;
     if(fileInput.files[0])
     {
       startMidi(fileInput.files[0]);

src/js/midi_player/synthetizer/buffer_voice/generator_translator.js

@@ -145,7 +145,7 @@ export class GeneratorTranslator {
             return this.limitValue(val, minAllowed, maxAllowed)
         }
 
-        return this.limitValue(defaultValue + preset, minAllowed, maxAllowed); // this.limitValue(val, minAllowed, maxAllowed);
+        return defaultValue + preset; // this.limitValue(val, minAllowed, maxAllowed);
     }
 
     /**
@@ -285,6 +285,10 @@ export class GeneratorTranslator {
      */
     _getSustainLevel()
     {
+        if(this.sustainLowerAmount < 0)
+        {
+            return this.decibelsToGain(this.attenuation * -1);
+        }
         let sustain = this.decibelsToGain(this.attenuation * -1) * this.decibelsToGain(this.sustainLowerAmount * -1)
         if(sustain <= 0)
         {

src/js/utils/byte_functions.js

@@ -49,7 +49,8 @@ export function readBytesAsString(dataArray, bytes, encoding=undefined){
         let string = "";
         for (let i = 0; i < bytes; i++) {
             let byte = readByte(dataArray);
-            if (byte === 0) {
+            if(byte < 32 || byte > 127)
+            {
                 continue;
             }
             string += String.fromCharCode(byte);