diff --git a/rag/llm/tts_model.py b/rag/llm/tts_model.py
index 197c21d282..becb8d3672 100644
--- a/rag/llm/tts_model.py
+++ b/rag/llm/tts_model.py
@@ -407,7 +407,7 @@ class SILICONFLOWTTS(HTTPBasedTTS):
             "input": text,
             "voice": f"{self.model_name}:{voice}",
             "response_format": "mp3",
-            "sample_rate": 123,
+            "sample_rate": 32000,
             "stream": True,
             "speed": 1,
             "gain": 0,