diff --git a/astrbot/core/config/default.py b/astrbot/core/config/default.py
index f95c2fe5..c081c21e 100644
--- a/astrbot/core/config/default.py
+++ b/astrbot/core/config/default.py
@@ -611,7 +611,7 @@ CONFIG_METADATA_2 = {
                     "GSVI_TTS(API)": {
                         "id": "gsvi_tts",
                         "type": "gsvi_tts_api",
-                        "api_base": "http://127.0.0.1/5000",
+                        "api_base": "http://127.0.0.1:5000",
                         "character": "",
                         "emotion": "default",
                         "enable": False,
diff --git a/astrbot/core/provider/sources/gsvi_tts_source.py b/astrbot/core/provider/sources/gsvi_tts_source.py
index 1a84865a..0c8b7ab3 100644
--- a/astrbot/core/provider/sources/gsvi_tts_source.py
+++ b/astrbot/core/provider/sources/gsvi_tts_source.py
@@ -16,12 +16,13 @@ class ProviderGSVITTS(TTSProvider):
     ) -> None:
         super().__init__(provider_config, provider_settings)
         self.api_base = provider_config.get("api_base", "http://127.0.0.1:5000")
+        if self.api_base.endswith("/"):
+            self.api_base = self.api_base[:-1]
         self.character = provider_config.get("character")
         self.emotion = provider_config.get("emotion")
-        self.format = provider_config.get("format")
 
     async def get_audio(self, text: str) -> str:
-        path = f'data/temp/gsvi_tts_{uuid.uuid4()}.{self.format or "wav"}'
+        path = f'data/temp/gsvi_tts_{uuid.uuid4()}.wav'
         params = {"text": text}
         
         if self.character: