simplify func, fix env var name

app.py

@@ -54,7 +54,7 @@ Answer the question accurately in less than 150 words. Remember you are Darth Va
 # # 1. Setup Vocode
 # import env vars
 vocode.setenv(
-    OPENAI_API_KEY=os.getenv("OPENAI_GPT4_API_KEY"),
+    OPENAI_API_KEY=os.getenv("OPENAI_API_KEY"),
     COQUI_API_KEY=os.getenv("COQUI_API_KEY"),
     COQUI_VOICE_ID=os.getenv("COQUI_VOICE_ID")
 )
@@ -67,33 +67,20 @@ logger.setLevel(logging.DEBUG)
 
 def main(input_audio):
 
-    try:
-        # Initialize WhisperTranscriber
-        transcriber = WhisperTranscriber(api_key=getenv("OPENAI_API_KEY"))
-    except Exception as e:
-        logger.error("Failed to initialize WhisperTranscriber: %s", e)
-        return None
-
-    try:
-        # Initialize ChatGPTAgent
-        agent = ChatGPTAgent(
-            system_prompt=system_prompt,
-            initial_message="What up",
-            api_key=getenv("OPENAI_API_KEY"),
-        )
-    except Exception as e:
-        logger.error("Failed to initialize ChatGPTAgent: %s", e)
-        return None
-
-    try:
-        # Initialize CoquiSynthesizer
-        synthesizer = CoquiSynthesizer(
-            voice_id=os.getenv("COQUI_VOICE_ID"),
-            api_key=getenv("COQUI_API_KEY"),
-        )
-    except Exception as e:
-        logger.error("Failed to initialize CoquiSynthesizer: %s", e)
-        return None
+    transcriber = WhisperTranscriber(api_key=getenv("OPENAI_API_KEY"))
+
+    # Initialize ChatGPTAgent
+    agent = ChatGPTAgent(
+        system_prompt=system_prompt,
+        initial_message="What up",
+        api_key=getenv("OPENAI_API_KEY"),
+    )
+
+    # Initialize CoquiSynthesizer
+    synthesizer = CoquiSynthesizer(
+        voice_id=os.getenv("COQUI_VOICE_ID"),
+        api_key=getenv("COQUI_API_KEY"),
+    )
 
     print("Starting conversation. Press Ctrl+C to exit.")
     while True:
@@ -117,16 +104,16 @@ description = "Darth Vader resurrected with all the knowledge of humanity"
 
 mic_translate = gr.Interface(
     fn=main,
-    inputs=gr.Audio(source="microphone", type="filepath"),
-    outputs=gr.Audio(label="Generated Speech", type="filepath"),
+    inputs=gr.Audio(source="microphone", type="filepath", format="wav"),
+    outputs=gr.Audio(label="Generated Speech", type="filepath", format="wav"),
     title=title,
     description=description,
 )
 
 file_translate = gr.Interface(
     fn=main,
-    inputs=gr.Audio(source="upload", type="filepath"),
-    outputs=gr.Audio(label="Generated Speech", type="filepath"),
+    inputs=gr.Audio(source="upload", type="filepath", format="wav"),
+    outputs=gr.Audio(label="Generated Speech", type="filepath", format="wav"),
     examples=[["./data/example/strauss-oppenheimer.wav"]],
     title=title,
     description=description,