Update app.py

app.py

@@ -26,8 +26,6 @@ for name in list_repo_files(repo_id="balacoon/tts"):
                 local_dir=os.getcwd(),
             )
 
-tts = TTS(os.path.join(os.getcwd(), tts_model_str))
-
 # locker that disallow access to the tts object from more then one thread
 locker = Lock()
 
@@ -101,6 +99,9 @@ async def greet(product,description):
     if response.choices[0].message.content != "not moderated":
         a_list = ["Sorry, I can't proceed for generating marketing email. Your content needs to be moderated first. Thank you!"]
         with locker:
+            if tts is not None:
+                del tts
+            tts = TTS(os.path.join(os.getcwd(), tts_model_str))
             samples = tts.synthesize(a_list[0], "92")
         yield (tts.get_sampling_rate(), samples)
     else:
@@ -121,6 +122,9 @@ async def greet(product,description):
             delta = chunk['choices'][0]['delta']
             if 'content' in delta:
                 with locker:
+                    if tts is not None:
+                        del tts
+                    tts = TTS(os.path.join(os.getcwd(), tts_model_str))
                     samples = tts.synthesize(delta.get('content', ''), "92")
         yield (tts.get_sampling_rate(), samples)