diff --git a/cloudfunctions/tts/index.js b/cloudfunctions/tts/index.js
index b60ab2d..337a8df 100644
--- a/cloudfunctions/tts/index.js
+++ b/cloudfunctions/tts/index.js
@@ -30,7 +30,7 @@ const PROMPTS = {
 
 const CACHE_DIR = 'tts-cache'
 
-const _synthesize = async (text, promptKey) => {
+const _synthesize = async (text, promptKey, opts) => {
   let TtsClient
   try {
     TtsClient = require('tencentcloud-sdk-nodejs').tts.v20190823.Client
@@ -52,17 +52,17 @@ const _synthesize = async (text, promptKey) => {
   const res = await client.TextToVoice({
     Text: text,
     SessionId: `${promptKey}-${Date.now()}-${Math.random().toString(36).slice(2, 10)}`,
-    VoiceType: 101001,    // 智瑜,温柔女声
+    VoiceType: (opts && opts.voiceType) || 101001,    // 智瑜,温柔女声
     Codec: 'mp3',
     SampleRate: 16000,
-    Speed: 0,
-    Volume: 5
+    Speed: (opts && opts.speed != null) ? opts.speed : 0,
+    Volume: (opts && opts.volume != null) ? opts.volume : 5
   })
   return Buffer.from(res.Audio, 'base64')
 }
 
-const _upload = async (key, buffer) => {
-  const cloudPath = `${CACHE_DIR}/${key}.mp3`
+const _upload = async (key, buffer, voiceType) => {
+  const cloudPath = `${CACHE_DIR}/${key}-${voiceType || 'default'}.mp3`
   // uploadFile returns the canonical fileID (e.g. "cloud://env.xxx/...").
   // We must use THAT — not the relative cloudPath we passed in — when
   // calling getTempFileURL. A self-constructed fileID is invalid.
@@ -71,7 +71,7 @@ const _upload = async (key, buffer) => {
 }
 
 exports.main = async (event) => {
-  const { promptKey, fileID } = event || {}
+  const { promptKey, fileID, voiceType, volume, speed } = event || {}
   const text = PROMPTS[promptKey]
   if (!text) {
     return { success: false, error: `Unknown prompt key: ${promptKey}` }
@@ -93,8 +93,8 @@ exports.main = async (event) => {
 
   // Slow path: synthesize + upload + return fresh fileID for caching
   try {
-    const buffer = await _synthesize(text, promptKey)
-    const newFileID = await _upload(promptKey, buffer)
+    const buffer = await _synthesize(text, promptKey, { voiceType, volume, speed })
+    const newFileID = await _upload(promptKey, buffer, voiceType)
     const urlRes = await cloud.getTempFileURL({ fileList: [newFileID] })
     const url = urlRes.fileList[0].tempFileURL
     if (!url) {
diff --git a/config.js b/config.js
index 3d327af..3d6542e 100644
--- a/config.js
+++ b/config.js
@@ -13,5 +13,18 @@ module.exports = {
   developer: '刘承',
 
   /** 排行榜最大显示人数 */
-  leaderboardMaxRank: 20
+  leaderboardMaxRank: 20,
+
+  /**
+   * 语音合成(TTS)参数 - 直接改这里调整音色/音量/语速,无需改逻辑代码。
+   * 设置页可选男声/女声,客户端按选择取下面对应的一组传给 tts 云函数。
+   *
+   * voiceType: 音色 ID。登录腾讯云 TTS 控制台试听音色,把数字填进来。
+   * volume:    音量 0-10(10 最响)。
+   * speed:     语速 -2~2(正数加快,0 为默认)。
+   */
+  tts: {
+    female: { voiceType: 502005, volume: 9, speed: 1 },
+    male:   { voiceType: 602005, volume: 9, speed: 1 }
+  }
 }
diff --git a/pages/settings/settings.js b/pages/settings/settings.js
index 375446d..586fa6d 100644
--- a/pages/settings/settings.js
+++ b/pages/settings/settings.js
@@ -53,6 +53,11 @@ Page({
     currentPlanId: 'beginner',
     voiceGuide: true,
     vibrate: true,
+    voiceGender: 'female',
+    voiceGenderOptions: [
+      { key: 'female', name: '女声' },
+      { key: 'male', name: '男声' }
+    ],
     icons: iconsMod.build(),
     nickName: '',
     avatarUrl: '',
@@ -86,6 +91,7 @@ Page({
       currentPlanId: s.planId,
       voiceGuide: s.voiceGuide,
       vibrate: s.vibrate,
+      voiceGender: s.voiceGender || 'female',
       currentThemeId: theme.id,
       theme,
       icons: iconsMod.build(theme),
@@ -238,6 +244,15 @@ Page({
     this.setData({ vibrate: e.detail.value })
   },
 
+  onSelectVoiceGender(e) {
+    const key = e.currentTarget.dataset.key
+    if (key === this.data.voiceGender) return
+    const s = storage.getSettings()
+    s.voiceGender = key
+    storage.saveSettings(s)
+    this.setData({ voiceGender: key })
+  },
+
   onCopyWechat() {
     wx.setClipboardData({
       data: config.developer,
diff --git a/pages/settings/settings.wxml b/pages/settings/settings.wxml
index 5f3a2d5..98a872d 100644
--- a/pages/settings/settings.wxml
+++ b/pages/settings/settings.wxml
@@ -118,6 +118,21 @@
       </view>
       <switch checked="{{voiceGuide}}" bindchange="onToggleVoice" color="{{theme.primary}}"/>
     </view>
+    <view class="setting-row">
+      <view class="setting-left">
+        <image class="setting-icon" src="{{icons.voiceFill}}" mode="aspectFit"></image>
+        <text class="setting-label">语音音色</text>
+      </view>
+      <view class="segmented">
+        <view
+          class="segmented-item {{voiceGender === item.key ? 'active' : ''}}"
+          wx:for="{{voiceGenderOptions}}"
+          wx:key="key"
+          data-key="{{item.key}}"
+          bindtap="onSelectVoiceGender"
+        >{{item.name}}</view>
+      </view>
+    </view>
     <view class="setting-row">
       <view class="setting-left">
         <image class="setting-icon" src="{{icons.notificationFill}}" mode="aspectFit"></image>
diff --git a/pages/settings/settings.wxss b/pages/settings/settings.wxss
index ec1ed31..c209b13 100644
--- a/pages/settings/settings.wxss
+++ b/pages/settings/settings.wxss
@@ -178,6 +178,27 @@
 
 .setting-row:last-child { border-bottom: none; }
 
+/* ---- segmented control (语音音色等二选一) ---- */
+.segmented {
+  display: flex;
+  background: var(--bg-soft);
+  border-radius: 12rpx;
+  padding: 4rpx;
+}
+.segmented-item {
+  padding: 10rpx 28rpx;
+  font-size: 24rpx;
+  color: var(--text-secondary);
+  border-radius: 8rpx;
+  transition: background 0.2s ease, color 0.2s ease;
+}
+.segmented-item.active {
+  background: var(--card-bg);
+  color: var(--primary);
+  font-weight: 600;
+  box-shadow: 0 2rpx 6rpx rgba(0, 0, 0, 0.08);
+}
+
 .setting-left {
   display: flex;
   align-items: center;
diff --git a/utils/storage.js b/utils/storage.js
index 92da125..9ce82cb 100644
--- a/utils/storage.js
+++ b/utils/storage.js
@@ -164,10 +164,20 @@ const getTotalStats = () => {
   return { totalDuration, totalSessions, maxDuration }
 }
 
-const getSettings = () => wx.getStorageSync(SETTINGS_KEY) || {
-  planId: 'beginner',
-  voiceGuide: true,
-  vibrate: true
+const getSettings = () => {
+  const s = wx.getStorageSync(SETTINGS_KEY)
+  if (s) {
+    // Backfill voiceGender for existing users (added with the male/female
+    // voice option). Defaults to female, the prior behavior.
+    if (!s.voiceGender) s.voiceGender = 'female'
+    return s
+  }
+  return {
+    planId: 'beginner',
+    voiceGuide: true,
+    vibrate: true,
+    voiceGender: 'female'
+  }
 }
 
 const saveSettings = (settings) => {
diff --git a/utils/voice.js b/utils/voice.js
index 307b6d7..784361d 100644
--- a/utils/voice.js
+++ b/utils/voice.js
@@ -17,6 +17,8 @@
  * the user with toast errors mid-plank.
  */
 
+const config = require('../config')
+
 const PROMPTS = {
   start: '训练已开始',
   halfway: '已完成一半啦,坚持就是胜利!',
@@ -58,34 +60,56 @@ const _getCtx = () => {
   return _ctx
 }
 
+/**
+ * Resolve the TTS params (voiceType/volume/speed) for the user's chosen
+ * voice gender from config.js. Cached fileIDs are keyed on these params,
+ * so changing them (or switching gender) auto-invalidates stale audio.
+ */
+const _getTtsParams = () => {
+  const s = wx.getStorageSync('user_settings') || {}
+  const gender = s.voiceGender === 'male' ? 'male' : 'female'
+  const params = (config.tts && config.tts[gender]) || config.tts.female
+  return {
+    voiceType: params.voiceType,
+    volume: params.volume,
+    speed: params.speed
+  }
+}
+
 const _fetchUrl = async (promptKey) => {
+  const { voiceType, volume, speed } = _getTtsParams()
+  // Key the cache on the full param set so changing voiceType/volume/speed
+  // (or switching gender) automatically re-synthesizes instead of serving
+  // stale audio. No manual cache clearing needed.
+  const cacheKey = `${promptKey}:${voiceType}:${volume}:${speed}`
+
   // 1. In-memory cache: same-session instant return
-  if (_urlCache[promptKey]) return _urlCache[promptKey]
+  if (_urlCache[cacheKey]) return _urlCache[cacheKey]
 
   // 2. Persistent fileID cache: pass to cloud function for instant getTempFileURL
   _loadFileIDCache()
-  const cachedFileID = _fileIDCache[promptKey] || null
+  const cachedFileID = _fileIDCache[cacheKey] || null
 
   try {
     const res = await wx.cloud.callFunction({
       name: 'tts',
-      data: { promptKey, fileID: cachedFileID },
+      data: { promptKey, fileID: cachedFileID, voiceType, volume, speed },
       // Timeout: 30s for first synthesis (cold start), <1s for cached
       config: { timeout: 30000 }
     })
     if (res && res.result && res.result.success && res.result.audioUrl) {
-      _urlCache[promptKey] = res.result.audioUrl
+      _urlCache[cacheKey] = res.result.audioUrl
 
       // Persist the fileID if we got a new one (first synthesis or
       // re-synthesis after cache invalidation).
       if (res.result.fileID && res.result.fileID !== cachedFileID) {
-        _fileIDCache[promptKey] = res.result.fileID
+        _fileIDCache[cacheKey] = res.result.fileID
         _saveFileIDCache()
       }
       return res.result.audioUrl
     }
   } catch (e) {
-    // cloud function not deployed or other error — silent fallback
+    // cloud function not deployed or other error - silent fallback
   }
   return null
 }