1，返回时关闭TTS 2，修改注释

BFRecordScreenKit/Classes/RecordScreen/Controller/BFRecordScreenController.swift

@@ -452,7 +452,7 @@ public class BFRecordScreenController: BFBaseViewController {
         return btn
     }()
     
-    // 字幕设置
+    // 变音设置
     lazy var voiceSettingBtn: UIButton = {
         let btn = UIButton(type: .custom)
         btn.setImage(imageInRecordScreenKit(by: "TTS"), for: .normal)
@@ -1316,6 +1316,7 @@ public class BFRecordScreenController: BFBaseViewController {
     // MARK: - 按钮事件响应
 
     override public func backBtnClick() {
+        tts?.stopTTS("")
         pause()
     }