Update

Jump Game/Assets/Scripts/Menu/SettingsMenu.cs

@@ -0,0 +1,17 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Audio;
+
+public class SettingsMenu : MonoBehaviour
+{
+    public AudioMixer audioMixer;
+
+    public void setVolume (float volume){
+        audioMixer.SetFloat("volume", volume);
+    }
+
+    void Start(){
+        audioMixer.SetFloat("volume", -30);
+    }
+}