diff --git a/packages/engine-chronocat-api/src/api/message/create/messager.ts b/packages/engine-chronocat-api/src/api/message/create/messager.ts
index 68d5c47..d11b864 100644
--- a/packages/engine-chronocat-api/src/api/message/create/messager.ts
+++ b/packages/engine-chronocat-api/src/api/message/create/messager.ts
@@ -284,7 +284,9 @@ export class Messager {
               this.children.push(
                 r.remoteAudio(
                   amrFile,
-                  encodeResult.duration ? Math.ceil(encodeResult.duration) : 1,
+                  encodeResult.duration
+                    ? Math.ceil(encodeResult.duration / 100)
+                    : 1,
                   encodeResult.waveAmplitudes,
                 ),
               )