Question Set the value of an audiomixergroup to the value of a saved playerpref

I'm trying to code a saving function for my Music group and Sound group sliders. So the player does not have to set them right every time the game starts.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5. using UnityEngine.Audio;
6.  
7. public class MusicAndSoundVolumeChangeSetting : MonoBehaviour
8. {
9.     public AudioMixer mixer;
10.     void Start()
11.     {
12.      
13.         PlayerPrefs.GetFloat("MusicVol");
14.         mixer.SetFloat("PrefMusicVol", MusicSliderValue);
15.  
16.         PlayerPrefs.GetFloat("SoundVol");
17.         mixer.SetFloat("PrefSoundVol", SoundSliderValue);
18.      
19.     }
20.  
21.     public void ChangeMusicVolume(float MusicSliderValue)
22.     {
23.         mixer.SetFloat("MusicVol", MusicSliderValue);
24.         PlayerPrefs.SetFloat("PrefMusicVol", MusicSliderValue);
25.     }
26.  
27.     public void ChangeSoundVolume(float SoundSliderValue)
28.     {
29.         mixer.SetFloat("SoundVol", SoundSliderValue);
30.         PlayerPrefs.SetFloat("PrefSoundVol", SoundSliderValue);
31.     }
32. }
33.         /*
34.         if(!PlayerPrefs.HasKey("MusicVol"))
35.         {
36.             PlayerPrefs.SetFloat("MusicVol", 1);
37.         }
38.  
39.         else
40.         {
41.             LoadMusic();
42.         }
43.      
44.         if(!PlayerPrefs.HasKey("SoundVol"))
45.         {
46.             PlayerPrefs.SetFloat("SoundVol", 1);
47.         }
48.  
49.         else
50.         {
51.             LoadSound();
52.         }
53.         */

I don't know how to set this right. Everything else works. Just the Start function needs the right code.
Please help me.

 

please

 

There are strange discrepencies in your code, Cortex00, for exemple:

* At line 13: you use the key "MusicVol" to get the player pref value.
* At line 24: you use the key "PrefMusicVol" to set the player pref value.
> The key for accessing the player pref vol property do not change over time, it's either "MusicVol" or "PrefMusicVol".

* At line 14: you use the key "PrefMusicVol" to set the Mixer value.
* At line 23: you use the key "MusicVol" to set the Mixer value.
> The key for accessing the Mixer vol property do not change over time, it's either "MusicVol" or "PrefMusicVol".

Then in the Start function there is the fact that for exemple you do not store the result of PlayerPrefs.GetFloat("MusicVol"); into a variable that can be assigned to the Mixer:

* You have:
PlayerPrefs.GetFloat("MusicVol");
mixer.SetFloat("PrefMusicVol", MusicSliderValue);
> MusicSliderValue never took the value of PlayerPrefs.GetFloat("MusicVol");

* It should be:
float MusicVol = PlayerPrefs.GetFloat( <your pref music vol key> );
float normalized_vol_converted_to_db = ConvertToDB(MusicVol);
mixer.SetFloat( <your Mixer music vol key>, normalized_vol_converted_to_db);
your_slider.value = MusicVol;
> the player pref value is this time really used to setup the mixer and slider values.

 

Thank you allot for your Feedback, thanks to you I was capable to fix my code and got it running as intended.
Thank you so much!