diff --git a/funasr/runtime/grpc/paraformer_server.cc b/funasr/runtime/grpc/paraformer_server.cc
index 69ce9032f..f2ab4e01d 100644
--- a/funasr/runtime/grpc/paraformer_server.cc
+++ b/funasr/runtime/grpc/paraformer_server.cc
@@ -88,7 +88,7 @@ grpc::Status ASRServicer::Recognize(
             res.set_language(req.language());
             stream->Write(res);
         } else if (!req.speaking()) {
-            if (client_buffers.count(req.user()) == 0) {
+            if (client_buffers.count(req.user()) == 0 && req.audio_data().size() == 0) {
                 Response res;
                 res.set_sentence(
                     R"({"success": true, "detail": "waiting_for_voice"})"
@@ -99,14 +99,18 @@ grpc::Status ASRServicer::Recognize(
                 stream->Write(res);
             }else {
                 auto begin_time = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+                if (req.audio_data().size() > 0) {
+                  auto& buf = client_buffers[req.user()];
+                  buf.insert(buf.end(), req.audio_data().begin(), req.audio_data().end());
+                }
                 std::string tmp_data = this->client_buffers[req.user()];
                 this->clear_states(req.user());
-                
+
                 Response res;
                 res.set_sentence(
                     R"({"success": true, "detail": "decoding data: " + std::to_string(tmp_data.length()) + " bytes"})"
                 );
-		int data_len_int = tmp_data.length();
+                int data_len_int = tmp_data.length();
                 std::string data_len = std::to_string(data_len_int);
                 std::stringstream ss;
                 ss << R"({"success": true, "detail": "decoding data: )" << data_len << R"( bytes")"  << R"("})";
@@ -129,18 +133,18 @@ grpc::Status ASRServicer::Recognize(
                     res.set_user(req.user());
                     res.set_action("finish");
                     res.set_language(req.language());
-                    
-                    
-                    
+
+
+
                     stream->Write(res);
                 }
                 else {
-                    RPASR_RESULT Result= RapidAsrRecogPCMBuffer(AsrHanlde, tmp_data.c_str(), data_len_int, RASR_NONE, NULL);   
+                    RPASR_RESULT Result= RapidAsrRecogPCMBuffer(AsrHanlde, tmp_data.c_str(), data_len_int, RASR_NONE, NULL);
                     std::string asr_result = ((RPASR_RECOG_RESULT*)Result)->msg;
 
                     auto end_time = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
                     std::string delay_str = std::to_string(end_time - begin_time);
-                    
+
                     std::cout << "user: " << req.user() << " , delay(ms): " << delay_str << ", text: " << asr_result << std::endl;
                     Response res;
                     std::stringstream ss;
@@ -150,8 +154,8 @@ grpc::Status ASRServicer::Recognize(
                     res.set_user(req.user());
                     res.set_action("finish");
                     res.set_language(req.language());
-                    
-                    
+
+
                     stream->Write(res);
                 }
             }
@@ -165,7 +169,7 @@ grpc::Status ASRServicer::Recognize(
             res.set_language(req.language());
             stream->Write(res);
         }
-    }    
+    }
     return Status::OK;
 }