Init

Assets/Scripts/HotUpdate/Main/SettingWindow/AudioPanel.cs

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+using UnityEngine;
+using UnityEngine.UI;
+using UnityEngine.Audio;
+
+public class AudioPanel : MonoBehaviour
+{
+    [SerializeField] private Slider masterVolumeSlider;
+    [SerializeField] private AudioMixer audioMixer;
+
+    private void OnEnable()
+    {
+        masterVolumeSlider.value = SettingsManager.Instance.CurrentSettings.masterVolume;
+        if (audioMixer == null) audioMixer = FindAnyObjectByType<AudioMixer>();
+    }
+
+    public void OnMasterVolumeChanged(float value)
+    {
+        SettingsManager.Instance.CurrentSettings.masterVolume = value;
+        SetVolume(value);
+    }
+
+    public void ApplySettings()
+    {
+        SetVolume(SettingsManager.Instance.CurrentSettings.masterVolume);
+    }
+
+    private void SetVolume(float volume)
+    {
+        if (audioMixer)
+            audioMixer.SetFloat("MasterVolume", Mathf.Log10(Mathf.Max(volume, 0.0001f)) * 20);
+    }
+}