diff --git a/Pal98Timer/GForm.cs b/Pal98Timer/GForm.cs
index f22811e..1955240 100644
--- a/Pal98Timer/GForm.cs
+++ b/Pal98Timer/GForm.cs
@@ -547,22 +547,12 @@ public void OnKeyPress(KeyboardLib.HookStruct hookStruct, out bool handle)
                         if (KeyChangerDel.IsEnable())
                         {
                             KeyChangerDel.Disable();
-                            ShowKCEnable();
-                            KeyChangerDel.Close();
                         }
                         else
                         {
-                            Run(delegate() {
-                                KeyChangerDel.Open();
-                                // Wait for the KeyChanger window to be ready (up to 3 seconds)
-                                for (int i = 0; i < 30 && !KeyChangerDel.IsWindowOpen(); i++)
-                                {
-                                    System.Threading.Thread.Sleep(100);
-                                }
-                                KeyChangerDel.Enable();
-                                UI(delegate() { ShowKCEnable(); });
-                            });
+                            KeyChangerDel.Enable();
                         }
+                        ShowKCEnable();
                         core.OnFunctionKey(11);
                     }
                     handle = core.NeedBlockFunctionKey(11);
diff --git a/Pal98Timer/Pal98Timer.csproj b/Pal98Timer/Pal98Timer.csproj
index 68aa8cc..5c1a410 100644
--- a/Pal98Timer/Pal98Timer.csproj
+++ b/Pal98Timer/Pal98Timer.csproj
@@ -236,6 +236,7 @@
       <DependentUpon>Upload.cs</DependentUpon>
     </Compile>
     <Compile Include="User32.cs" />
+    <Compile Include="VoicePrompt.cs" />
     <Compile Include="wapi\Enums.cs" />
     <Compile Include="wapi\Structs.cs" />
     <Compile Include="wapi\Win32API.cs" />
@@ -330,4 +331,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
\ No newline at end of file
+</Project>
diff --git a/Pal98Timer/TimerCore.cs b/Pal98Timer/TimerCore.cs
index 2b0ad56..ea0cd5d 100644
--- a/Pal98Timer/TimerCore.cs
+++ b/Pal98Timer/TimerCore.cs
@@ -95,6 +95,7 @@ public TimerCore(GForm form)
         {
             this.form = form;
             CMD5 = GetFileMD5(this.GetType().Assembly.Location);
+            VoicePrompt.ReloadConfig();
         }
         /// <summary>
         /// 计算文件的MD5
@@ -512,11 +513,22 @@ protected void Checking()
 
             if (CurrentStep < CheckPoints.Count)
             {
-                CheckPoints[CurrentStep].Current = MT.CurrentTSOnly;
-                if (CheckPoints[CurrentStep].Check())
+                CheckPoint currentCheckPoint = CheckPoints[CurrentStep];
+                currentCheckPoint.Current = MT.CurrentTSOnly;
+                if (currentCheckPoint.Check())
                 {
-                    CheckPoints[CurrentStep].Current = new TimeSpan(MT.CurrentTSOnly.Ticks);
-                    CheckPoints[CurrentStep].IsEnd = true;
+                    currentCheckPoint.Current = new TimeSpan(MT.CurrentTSOnly.Ticks);
+                    currentCheckPoint.IsEnd = true;
+                    VoicePrompt.PlayCheckpointSound(currentCheckPoint.GetNickName());
+                    long deltaSeconds = currentCheckPoint.GetCHA();
+                    if (deltaSeconds < 0)
+                    {
+                        VoicePrompt.PlayFasterSound();
+                    }
+                    else if (deltaSeconds > 0)
+                    {
+                        VoicePrompt.PlaySlowerSound();
+                    }
                     //CurrentStep++;
                     int nextstep = CurrentStep + 1;
                     if (nextstep >= CheckPoints.Count)
diff --git a/Pal98Timer/VoicePrompt.cs b/Pal98Timer/VoicePrompt.cs
new file mode 100644
index 0000000..86af4c7
--- /dev/null
+++ b/Pal98Timer/VoicePrompt.cs
@@ -0,0 +1,345 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace Pal98Timer
+{
+    public static class VoicePrompt
+    {
+        [DllImport("winmm.dll", CharSet = CharSet.Auto)]
+        private static extern int mciSendString(string command, StringBuilder buffer, int bufferSize, IntPtr hwndCallback);
+
+        private static readonly object _configLock = new object();
+        private static readonly object _playLock = new object();
+        private static readonly string _playerAlias = "paltimer_voice";
+        private static readonly string[] _soundExts = new string[] { ".mp3", ".wav" };
+        private static bool _isLoaded = false;
+        private static bool _isEnable = true;
+        private static string _fasterPath = @"sounds\faster.mp3";
+        private static string _slowerPath = @"sounds\slower.mp3";
+        private static Dictionary<string, string> _checkpointSounds = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+
+        private static string AppDir
+        {
+            get
+            {
+                try
+                {
+                    string p = Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName);
+                    if (!string.IsNullOrEmpty(p))
+                    {
+                        return p;
+                    }
+                }
+                catch
+                { }
+                try
+                {
+                    string p = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
+                    if (!string.IsNullOrEmpty(p))
+                    {
+                        return p;
+                    }
+                }
+                catch
+                { }
+                return Environment.CurrentDirectory;
+            }
+        }
+
+        public static void ReloadConfig()
+        {
+            lock (_configLock)
+            {
+                _isLoaded = false;
+            }
+            EnsureConfigLoaded();
+        }
+
+        private static void EnsureConfigLoaded()
+        {
+            if (_isLoaded)
+            {
+                return;
+            }
+            lock (_configLock)
+            {
+                if (_isLoaded)
+                {
+                    return;
+                }
+                _isEnable = true;
+                _fasterPath = @"sounds\faster.mp3";
+                _slowerPath = @"sounds\slower.mp3";
+                _checkpointSounds = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+
+                string cfgPath = Path.Combine(AppDir, "voice_config.txt");
+                if (File.Exists(cfgPath))
+                {
+                    try
+                    {
+                        Encoding charset = TimerCore.GetFileEncodeType(cfgPath);
+                        if (charset == null)
+                        {
+                            charset = Encoding.UTF8;
+                        }
+                        using (FileStream fs = new FileStream(cfgPath, FileMode.Open, FileAccess.Read))
+                        {
+                            using (StreamReader sr = new StreamReader(fs, charset))
+                            {
+                                while (!sr.EndOfStream)
+                                {
+                                    string line = sr.ReadLine();
+                                    if (line == null)
+                                    {
+                                        continue;
+                                    }
+                                    line = line.Trim();
+                                    if (line == "" || line.StartsWith("#") || line.StartsWith(";") || line.StartsWith("//"))
+                                    {
+                                        continue;
+                                    }
+                                    int idx = line.IndexOf('=');
+                                    if (idx <= 0)
+                                    {
+                                        continue;
+                                    }
+                                    string key = line.Substring(0, idx).Trim();
+                                    string val = line.Substring(idx + 1).Trim();
+                                    if (key == "" || val == "")
+                                    {
+                                        continue;
+                                    }
+                                    string lowKey = key.ToLowerInvariant();
+                                    if (lowKey == "enable" || lowKey == "enabled" || lowKey == "voice_enable")
+                                    {
+                                        _isEnable = ParseBool(val, true);
+                                    }
+                                    else if (lowKey == "faster" || lowKey == "faster_sound")
+                                    {
+                                        _fasterPath = val;
+                                    }
+                                    else if (lowKey == "slower" || lowKey == "slower_sound")
+                                    {
+                                        _slowerPath = val;
+                                    }
+                                    else if (lowKey.StartsWith("checkpoint."))
+                                    {
+                                        string checkpointName = key.Substring("checkpoint.".Length).Trim();
+                                        if (checkpointName != "")
+                                        {
+                                            _checkpointSounds[checkpointName] = val;
+                                        }
+                                    }
+                                    else if (lowKey.StartsWith("cp."))
+                                    {
+                                        string checkpointName = key.Substring("cp.".Length).Trim();
+                                        if (checkpointName != "")
+                                        {
+                                            _checkpointSounds[checkpointName] = val;
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                    catch (Exception ex)
+                    {
+                        Debug.WriteLine("VoicePrompt config load failed: " + ex.Message);
+                    }
+                }
+                _isLoaded = true;
+            }
+        }
+
+        private static bool ParseBool(string str, bool defaultValue)
+        {
+            if (string.IsNullOrEmpty(str))
+            {
+                return defaultValue;
+            }
+            string s = str.Trim().ToLowerInvariant();
+            if (s == "1" || s == "true" || s == "yes" || s == "on")
+            {
+                return true;
+            }
+            if (s == "0" || s == "false" || s == "no" || s == "off")
+            {
+                return false;
+            }
+            return defaultValue;
+        }
+
+        public static void PlaySound(string filePath)
+        {
+            EnsureConfigLoaded();
+            if (!_isEnable)
+            {
+                return;
+            }
+            string fullPath = ResolvePath(filePath);
+            if (fullPath == "")
+            {
+                return;
+            }
+            if (!File.Exists(fullPath))
+            {
+                return;
+            }
+            string normalizedPath;
+            try
+            {
+                normalizedPath = Path.GetFullPath(fullPath);
+            }
+            catch
+            {
+                return;
+            }
+            if (!IsAllowedAudioFile(normalizedPath))
+            {
+                return;
+            }
+            if (normalizedPath.IndexOf('\r') >= 0 || normalizedPath.IndexOf('\n') >= 0 || normalizedPath.IndexOf('"') >= 0)
+            {
+                return;
+            }
+
+            lock (_playLock)
+            {
+                try
+                {
+                    mciSendString("close " + _playerAlias, null, 0, IntPtr.Zero);
+                    int openRes = mciSendString("open \"" + normalizedPath + "\" alias " + _playerAlias, null, 0, IntPtr.Zero);
+                    if (openRes == 0)
+                    {
+                        mciSendString("play " + _playerAlias + " from 0", null, 0, IntPtr.Zero);
+                    }
+                }
+                catch (Exception ex)
+                {
+                    Debug.WriteLine("VoicePrompt.PlaySound error: " + ex.Message);
+                }
+            }
+        }
+
+        public static void PlayCheckpointSound(string checkpointName)
+        {
+            EnsureConfigLoaded();
+            if (string.IsNullOrWhiteSpace(checkpointName))
+            {
+                return;
+            }
+            string mapping;
+            if (_checkpointSounds.TryGetValue(checkpointName.Trim(), out mapping))
+            {
+                PlaySound(mapping);
+                return;
+            }
+
+            string autoPath = FindNamedSound(checkpointName.Trim());
+            if (autoPath != "")
+            {
+                PlaySound(autoPath);
+            }
+        }
+
+        public static void PlayFasterSound()
+        {
+            EnsureConfigLoaded();
+            PlaySound(_fasterPath);
+        }
+
+        public static void PlaySlowerSound()
+        {
+            EnsureConfigLoaded();
+            PlaySound(_slowerPath);
+        }
+
+        private static string ResolvePath(string path)
+        {
+            if (string.IsNullOrWhiteSpace(path))
+            {
+                return "";
+            }
+            string p = path.Trim().Trim('"');
+            if (Path.IsPathRooted(p))
+            {
+                return p;
+            }
+            return Path.Combine(AppDir, p);
+        }
+
+        private static string FindNamedSound(string checkpointName)
+        {
+            string[] bases = new string[]
+            {
+                Path.Combine(AppDir, "sounds"),
+                Path.Combine(AppDir, "voice")
+            };
+
+            foreach (string baseDir in bases)
+            {
+                string matched = FindNamedSoundInDir(baseDir, checkpointName);
+                if (matched != "")
+                {
+                    return matched;
+                }
+            }
+            return "";
+        }
+
+        private static string FindNamedSoundInDir(string baseDir, string checkpointName)
+        {
+            if (!Directory.Exists(baseDir))
+            {
+                return "";
+            }
+            string safeName = MakeSafeFileName(checkpointName);
+            foreach (string ext in _soundExts)
+            {
+                string p1 = Path.Combine(baseDir, checkpointName + ext);
+                if (File.Exists(p1))
+                {
+                    return p1;
+                }
+                if (safeName != checkpointName)
+                {
+                    string p2 = Path.Combine(baseDir, safeName + ext);
+                    if (File.Exists(p2))
+                    {
+                        return p2;
+                    }
+                }
+            }
+            return "";
+        }
+
+        private static string MakeSafeFileName(string fileName)
+        {
+            string res = fileName;
+            char[] invs = Path.GetInvalidFileNameChars();
+            foreach (char c in invs)
+            {
+                res = res.Replace(c, '_');
+            }
+            return res;
+        }
+
+        private static bool IsAllowedAudioFile(string path)
+        {
+            string ext = Path.GetExtension(path);
+            foreach (string item in _soundExts)
+            {
+                if (string.Equals(ext, item, StringComparison.OrdinalIgnoreCase))
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+}
diff --git a/docs/TODO_PLAN.md b/docs/TODO_PLAN.md
new file mode 100644
index 0000000..3d7fc73
--- /dev/null
+++ b/docs/TODO_PLAN.md
@@ -0,0 +1,13 @@
+# TODO PLAN
+
+- [ ] 支持 LiveSplit 的 .lss（LiveSplit Splits）格式导入导出
+- [ ] 支持 LiveSplit Server 协议通信，使 PalTimer 可以作为 LiveSplit 的数据源
+- [ ] 实现 ASL（Auto Split Language）兼容层，复用 LiveSplit 社区已有的 Auto Splitter 脚本
+- [ ] 支持 Sum of Best Segments 计算
+- [ ] 支持 Delta 显示（对比最佳/平均的时间差）
+- [ ] 支持多种比较方式（Personal Best, Average, Median, Best Segments 等）
+- [ ] 支持 Subsplits（子节点分组）
+- [ ] 节点语音提示功能增强（图形化配置、试听、每节点独立开关与优先级）
+- [ ] 支持通过 WebSocket/HTTP 暴露实时计时数据给 OBS 等工具
+- [ ] 支持回放（Run History）统计和图表
+- [ ] 支持自定义主题/皮肤导入
diff --git a/docs/livesplit_pal98_kb.md b/docs/livesplit_pal98_kb.md
new file mode 100644
index 0000000..93385a2
--- /dev/null
+++ b/docs/livesplit_pal98_kb.md
@@ -0,0 +1,85 @@
+# LiveSplit 与仙剑98 DX9 知识库
+
+## 1) LiveSplit 简介
+
+- LiveSplit 是著名的开源速通计时器项目。  
+- GitHub: https://github.com/LiveSplit/LiveSplit  
+- 典型能力：分段计时（splits）、自动分段（Auto Splitter）、丰富布局组件、对外通信（如 LiveSplit Server）。
+
+## 2) LiveSplit 与 PalTimer 对比
+
+- **共同点**：都支持分段计时、PB/最佳段等速通核心场景。  
+- **PalTimer 优势**：针对仙剑系列（尤其仙剑98 DX9）内核已做深度适配，已有检查点与内存读取逻辑。  
+- **LiveSplit 优势**：生态成熟（ASL 脚本社区、组件体系、布局可定制、外部工具兼容广）。
+
+## 3) 通过 Auto Splitter（ASL）支持仙剑98 DX9
+
+LiveSplit 通常通过 ASL（Auto Split Language）脚本读取进程内存并驱动计时状态：
+
+- 识别目标进程（如 `PAL98.exe`/DX9 对应进程名）
+- 读取关键状态（地图、剧情标志、战斗状态、章节变量等）
+- 根据状态变化触发 `start/split/reset`
+- 可通过 `isLoading` 控制计时是否扣除读盘/载入时间
+
+## 4) ASL 脚本结构示例（简化）
+
+```asl
+state("PAL98")
+{
+    int sceneId : 0x123456;
+    int flagMainQuest : 0x234567;
+}
+
+start
+{
+    return old.flagMainQuest == 0 && current.flagMainQuest == 1;
+}
+
+split
+{
+    // 示例：场景切换到某关键节点
+    return old.sceneId != current.sceneId && current.sceneId == 2101;
+}
+
+reset
+{
+    return current.flagMainQuest == 0 && current.sceneId == 1001;
+}
+
+isLoading
+{
+    // 示例：按加载状态位判断
+    return false;
+}
+```
+
+## 5) 仙剑98 DX9 内存地址读取思路
+
+可参考 PalTimer 现有内核做法：
+
+1. 先定位目标进程与模块基址  
+2. 维护稳定的“检查点判定字段”（地图ID、剧情变量、道具标志等）  
+3. 用“状态边沿变化”判定节点触发（避免同一状态重复触发）  
+4. 把检查点与最佳时间线关联，生成当前段差与预计完赛时间  
+
+实践中建议：
+
+- 优先使用“语义稳定”的判定字段（剧情flag比瞬时动画状态更稳）  
+- 对易抖动状态加去抖/二次确认  
+- 地址版本变化时通过签名或版本分支管理地址表。
+
+## 6) LiveSplit Server 与 WebSocket 通信
+
+LiveSplit Server 常用于把计时状态提供给外部工具（覆盖层、OBS脚本、远端控制器等）：
+
+- 可通过 TCP 文本命令协议交互（开始/分段/重置/读状态）  
+- 在工程扩展里也可做 WebSocket 网关，将状态转发给网页或直播辅助层  
+- PalTimer 若对齐该协议，可直接复用大量现有工具链。
+
+## 7) 自定义 Layout 与组件配置
+
+LiveSplit 的 Layout 可组合多种组件：
+
+- Timer / Splits / Delta / Previous Segment / Sum of Best / Graph 等  
+- 支持字体、颜色、间距、阴影、背景等细粒度配置  
+- 通过布局配置与组件组合，可以快速适配“练习版”“比赛版”“直播版”三类界面需求。