diff --git a/src/main/java/com/genersoft/iot/vmp/media/bean/MediaInfo.java b/src/main/java/com/genersoft/iot/vmp/media/bean/MediaInfo.java
index 12921dcc8..e8caaccca 100644
--- a/src/main/java/com/genersoft/iot/vmp/media/bean/MediaInfo.java
+++ b/src/main/java/com/genersoft/iot/vmp/media/bean/MediaInfo.java
@@ -44,7 +44,7 @@ public class MediaInfo {
     private Integer audioChannels;
     @Schema(description = "音频采样率")
     private Integer audioSampleRate;
-    @Schema(description = "音频采样率")
+    @Schema(description = "时长")
     private Long duration;
     @Schema(description = "在线")
     private Boolean online;