diff --git a/src/main/java/com/zhipu/oapi/service/v4/audio/AudioSpeechRequest.java b/src/main/java/com/zhipu/oapi/service/v4/audio/AudioSpeechRequest.java
index a454855..e197b74 100644
--- a/src/main/java/com/zhipu/oapi/service/v4/audio/AudioSpeechRequest.java
+++ b/src/main/java/com/zhipu/oapi/service/v4/audio/AudioSpeechRequest.java
@@ -43,6 +43,11 @@ public class AudioSpeechRequest extends CommonRequest implements ClientRequest<M
      */
     private String responseFormat;
 
+    /**
+     * 需要流式返回的音频编码格式
+     */
+    private String encodeFormat;
+
     /**
      * 敏感词检测控制
      */
@@ -58,6 +63,7 @@ public Map<String, Object> getOptions() {
         paramsMap.put("stream", this.isStream());
         paramsMap.put("voice", this.getVoice());
         paramsMap.put("response_format", this.getResponseFormat());
+        paramsMap.put("encode_format", this.getEncodeFormat());
         paramsMap.put("sensitive_word_check", this.getSensitiveWordCheck());
         if(this.getExtraJson() !=null){
             paramsMap.putAll(this.getExtraJson());
diff --git a/src/test/java/com/zhipu/oapi/V4Test.java b/src/test/java/com/zhipu/oapi/V4Test.java
index e99b9cf..c61815f 100644
--- a/src/test/java/com/zhipu/oapi/V4Test.java
+++ b/src/test/java/com/zhipu/oapi/V4Test.java
@@ -49,7 +49,7 @@ public class V4Test {
     private static final String API_BASE_URL = Constants.getBaseUrl();
 
 
-    private static final ClientV4 client = new ClientV4.Builder(API_BASE_URL,API_SECRET_KEY)
+    private static final ClientV4 client = new ClientV4.Builder(API_BASE_URL, API_SECRET_KEY)
             .enableTokenCache()
             .networkConfig(300, 100, 100, 100, TimeUnit.SECONDS)
             .connectionPool(new okhttp3.ConnectionPool(8, 1, TimeUnit.SECONDS))
@@ -673,8 +673,9 @@ public void testAudioSpeechStreaming() throws IOException {
         AudioSpeechRequest audioSpeechRequest =
                 AudioSpeechRequest.builder()
                         .model(Constants.ModelTTS)
-                        .input("智谱，你好呀")
-                        .voice("tongtong")
+                        .encodeFormat("base64")
+                        .input("你好,欢迎来到智谱开放平台")
+                        .voice("female")
                         .stream(Boolean.TRUE)
                         .responseFormat("wav")
                         .build();