Slider Volume updation after returning to main menu from a different scene

gistfile1.txt

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class SliderVolumeValue : MonoBehaviour 
{
    const float DefaultVolume = 1f;

    // Reference to Audio Source component
    private AudioSource audioSrc;

    private void Awake()
    {
        audioSrc = GetComponent<AudioSource>();    
    
        var volume = PlayerPrefs.GetFloat("musicVol", DefaultVolume);
        audioSrc.volume = volume;
    }

    // Method that is called by slider game object
    // This method takes vol value passed by slider
    // and sets it as musicValue
    public void SetVolume(float vol)
    {
        PlayerPrefs.SetFloat("musicVol", vol);
        PlayerPrefs.Save();
        
        audioSrc.volume = vol;
    }
}