diff --git a/src/AIService/AIService.php b/src/AIService/AIService.php
index 61ed094..e963439 100644
--- a/src/AIService/AIService.php
+++ b/src/AIService/AIService.php
@@ -10,4 +10,5 @@ namespace Dhd\Micro\Interface\AIService;
 
 interface AIService extends
     AiEssayCheckInterface,
-    AiInterviewCheckInterface {}
+    AiInterviewCheckInterface,
+    AiInterviewTtsInterface {}
diff --git a/src/AIService/AiInterviewTtsInterface.php b/src/AIService/AiInterviewTtsInterface.php
new file mode 100644
index 0000000..35d1810
--- /dev/null
+++ b/src/AIService/AiInterviewTtsInterface.php
@@ -0,0 +1,25 @@
+<?php
+
+/**
+ * AI面试朗读(TTS)相关接口
+ */
+
+declare(strict_types=1);
+
+namespace Dhd\Micro\Interface\AIService;
+
+interface AiInterviewTtsInterface
+{
+    /**
+     * 朗读面试题（文字转语音）：懒生成并缓存，已存在则直接返回已有音频
+     * 音频按题目(question_id)生成并全局复用
+     * @param array $params 参数，['question_id'=>面试题ID]
+     */
+    public function interviewTtsAudio(array $params): array;
+
+    /**
+     * 查询面试题是否已生成音频，仅查缓存不触发合成（供取题接口附带音频使用）
+     * @param int $questionId 面试题ID
+     */
+    public function getInterviewQuestionAudioUrl(int $questionId): ?string;
+}
\ No newline at end of file
diff --git a/src/FileService/JsonRpcInterface/FileServiceInterface.php b/src/FileService/JsonRpcInterface/FileServiceInterface.php
index a83c4ed..7e3bdcf 100644
--- a/src/FileService/JsonRpcInterface/FileServiceInterface.php
+++ b/src/FileService/JsonRpcInterface/FileServiceInterface.php
@@ -27,4 +27,10 @@ interface FileServiceInterface
      * 获取文件列表
      */
     public function getFileList(array $params): array;
+
+    /**
+     * 保存二进制(base64)文件，用于服务端生成的文件
+     * @param array $params 参数，如 ['base64'=>.., 'file_name'=>.., 'file_type'=>.., 'group_id'=>.., 'channel'=>.., 'uploader_id'=>..]
+     */
+    public function saveBase64File(array $params): array;
 }