diff --git a/AquaMai.Mods/GameSystem/HeadphoneVolumeOverride.cs b/AquaMai.Mods/GameSystem/HeadphoneVolumeOverride.cs
new file mode 100644
index 00000000..1553cb66
--- /dev/null
+++ b/AquaMai.Mods/GameSystem/HeadphoneVolumeOverride.cs
@@ -0,0 +1,39 @@
+using HarmonyLib;
+
+using AquaMai.Config.Attributes;
+using UnityEngine;
+
+namespace AquaMai.Mods.GameSystem;
+
+[ConfigSection(
+    name: "耳机音量覆盖",
+    en: "Override 1P/2P headphone volume to a fixed value, ignoring the user's in-game setting. Set to -1 to disable (use user setting). Range: 0–20.",
+    zh: "将 1P/2P 耳机音量强制覆盖为固定值，忽略用户的游戏内设置。设为 -1 则禁用（使用用户设置）。范围：0–20。")]
+public static class HeadphoneVolumeOverride
+{
+    [ConfigEntry(
+        name: "1P 音量覆盖",
+        en: "1P headphone volume override. -1 = use user setting, 0–20 = fixed volume (20 is max).",
+        zh: "1P 耳机音量覆盖值。-1 = 使用用户设置，0–20 = 固定音量（20 为最大值）。")]
+    private static readonly float p1 = -1f;
+
+    [ConfigEntry(
+        name: "2P 音量覆盖",
+        en: "2P headphone volume override. -1 = use user setting, 0–20 = fixed volume (20 is max).",
+        zh: "2P 耳机音量覆盖值。-1 = 使用用户设置，0–20 = 固定音量（20 为最大值）。")]
+    private static readonly float p2 = -1f;
+
+    [HarmonyPrefix]
+    [HarmonyPatch(typeof(CriAtomExPlayer), "SetAisacControl", [typeof(uint), typeof(float)])]
+    public static void PreSetAisacControl(uint controlId, ref float value)
+    {
+        if (controlId == 2 && p1 >= 0f)
+        {
+            value = Mathf.Clamp(p1 / 20f, 0f, 1f);
+        }
+        else if (controlId == 3 && p2 >= 0f)
+        {
+            value = Mathf.Clamp(p2 / 20f, 0f, 1f);
+        }
+    }
+}