diff --git a/app/api/controller/XunFeiController.php b/app/api/controller/XunFeiController.php
index 09086408d..c86d1a35a 100644
--- a/app/api/controller/XunFeiController.php
+++ b/app/api/controller/XunFeiController.php
@@ -144,9 +144,17 @@ class XunFeiController extends BaseApiController
             return $this->fail('录音文件太长');
         }
         $ext = pathinfo($file, PATHINFO_EXTENSION);
-        if ($ext != 'mp3') {
+        $extArray = ['mp3', 'pcm'];
+        if (!in_array($ext, $extArray)) {
             return $this->fail('录音格式错误');
         }
+        $encoding = 'raw';
+        if ($ext == 'mp3') {
+            $encoding = 'lame';
+        }
+        if ($ext == 'pcm') {
+            $encoding = 'raw';
+        }
         // $file = "https://lihai001.oss-cn-chengdu.aliyuncs.com/media/iat_mp3_16k.mp3";
         $audioFile = fopen($file, 'rb');
         if ($audioFile === false) {
@@ -160,7 +168,7 @@ class XunFeiController extends BaseApiController
             $client = new Client($iat->assembleAuthUrl($iatHostUrl));
             if ($client) {
                 $frameSize = 1280; //每一帧的音频大小
-                $intervel = 40 * 1000; //发送音频间隔
+                $intervel = 20 * 1000; //发送音频间隔
                 $status = 0;
                 while (true) {
                     $len = fread($audioFile, $frameSize);
@@ -185,7 +193,7 @@ class XunFeiController extends BaseApiController
                                     'status' => 0,
                                     'format' => 'audio/L16;rate=16000',
                                     'audio' => base64_encode($len),
-                                    'encoding' => 'lame'
+                                    'encoding' => $encoding
                                 )
                             );
                             $client->send(json_encode($frameData));
@@ -197,7 +205,7 @@ class XunFeiController extends BaseApiController
                                     'status' => 1,
                                     'format' => 'audio/L16;rate=16000',
                                     'audio' => base64_encode($len),
-                                    'encoding' => 'raw'
+                                    'encoding' => $encoding
                                 )
                             );
                             $client->send(json_encode($frameData));
@@ -208,7 +216,7 @@ class XunFeiController extends BaseApiController
                                     'status' => 2,
                                     'format' => 'audio/L16;rate=16000',
                                     'audio' => base64_encode($len),
-                                    'encoding' => 'raw'
+                                    'encoding' => $encoding
                                 )
                             );
                             $client->send(json_encode($frameData));