Soften generated audio

src/game/audio/SoundDirector.ts

@@ -10,7 +10,7 @@ class SoundDirector {
   private currentMusicKey?: string;
   private pendingMusicKey?: string;
   private musicFadeTimer?: number;
-  private readonly musicVolume = 0.56;
+  private readonly musicVolume = 0.2;
 
   registerMusicTracks(tracks: AudioTrackMap) {
     this.musicTracks = tracks;
@@ -66,12 +66,12 @@ class SoundDirector {
   }
 
   playHover() {
-    this.playTone(660, 0.035, 0.04, 'sine');
+    this.playTone(540, 0.04, 0.018, 'sine');
   }
 
   playSelect() {
-    this.playTone(330, 0.08, 0.12, 'triangle');
-    window.setTimeout(() => this.playTone(495, 0.1, 0.08, 'triangle'), 65);
+    this.playTone(300, 0.07, 0.04, 'sine');
+    window.setTimeout(() => this.playTone(450, 0.08, 0.028, 'sine'), 70);
   }
 
   playMusic(key?: string) {