Update requirements.txt

requirements.txt

@@ -9,4 +9,9 @@ python-dotenv
 google-generativeai     
 gTTS                   
 torch                  
-torchvision                          
+torchvision
+https://gradio-builds.s3.amazonaws.com/bed454c3d22cfacedc047eb3b0ba987b485ac3fd/gradio-4.40.0-py3-none-any.whl
+git+https://github.com/huggingface/parler-tts.git
+accelerate
+nltk
+soundfile