diff --git a/src/Common/MultiMediaSourceMuxer.cpp b/src/Common/MultiMediaSourceMuxer.cpp
index f7104e0b..11b51236 100644
--- a/src/Common/MultiMediaSourceMuxer.cpp
+++ b/src/Common/MultiMediaSourceMuxer.cpp
@@ -623,7 +623,7 @@ bool MultiMediaSourceMuxer::onTrackFrame(const Frame::Ptr &frame_in) {
         }
         else if (frame->getTrackType() == TrackAudio) {
             if (rtmp) {
-                if (_audio_dec && rtmp->readerCount())
+                if (_audio_dec && (rtmp->readerCount() || !rtmp->isRegisted()))
                     _audio_dec->inputFrame(frame, true, false, false);
                 rtmp = nullptr;
             }
diff --git a/src/Rtmp/RtmpMediaSourceMuxer.h b/src/Rtmp/RtmpMediaSourceMuxer.h
index 3f6b8bd4..8b3d7a20 100644
--- a/src/Rtmp/RtmpMediaSourceMuxer.h
+++ b/src/Rtmp/RtmpMediaSourceMuxer.h
@@ -43,7 +43,11 @@ public:
     int readerCount() const{
         return _media_src->readerCount();
     }
-
+    bool isRegisted() const { return _is_registed; }
+    void onRegist(MediaSource& sender, bool regist) override {
+        MediaSourceEventInterceptor::onRegist(sender, regist);
+        _is_registed = regist;
+    }
     void addTrackCompleted() override {
         RtmpMuxer::addTrackCompleted();
         makeConfigPacket();
@@ -76,6 +80,7 @@ public:
 
 private:
     bool _enabled = true;
+    bool _is_registed = false;
     bool _clear_cache = false;
     ProtocolOption _option;
     RtmpMediaSource::Ptr _media_src;