BeatSaber/Assets/Script/GlobalSyncSettings.cs

using UnityEngine;

public static class GlobalSyncSettings
{
    private const string AudioOffsetMsKey = "VRBeats.GlobalAudioOffsetMs";

    public static float AudioOffsetMs
    {
        get => PlayerPrefs.GetFloat(AudioOffsetMsKey, 0.0f);
        set
        {
            PlayerPrefs.SetFloat(AudioOffsetMsKey, Mathf.Clamp(value, -300.0f, 300.0f));
            PlayerPrefs.Save();
        }
    }

    public static float AudioOffsetSeconds => AudioOffsetMs / 1000.0f;

    public static void Reset()
    {
        PlayerPrefs.DeleteKey(AudioOffsetMsKey);
        PlayerPrefs.Save();
    }
}