Handle custom audio input correctly

app.py

@@ -11,11 +11,34 @@ def convert_to_mp4_with_aac(input_path, output_path):
 
     return output_path
 
+audio_list = [
+                "German1.wav", "German2.wav", "German3.wav", "German4.wav",
+                "acknowledgement_chinese.m4a", "acknowledgement_english.m4a",
+                "chinese1_haierlizhi.wav", "chinese2_guanyu.wav",
+                "french1.wav", "french2.wav", "french3.wav",
+                "italian1.wav", "italian2.wav", "italian3.wav",
+                "japan1.wav", "japan2.wav", "japan3.wav",
+                "korean1.wav", "korean2.wav", "korean3.wav",
+                "noisy_audio_cafeter_snr_0.wav", "noisy_audio_meeting_snr_0.wav", "noisy_audio_meeting_snr_10.wav", "noisy_audio_meeting_snr_20.wav", "noisy_audio_narrative.wav", "noisy_audio_office_snr_0.wav", "out_of_domain_narrative.wav",
+                "spanish1.wav", "spanish2.wav", "spanish3.wav"
+            ]
+
+# Function to check if the audio file path exists in the list
+def check_file_exists(file_path, audio_list):
+    return file_path in audio_list
+
 def load_audio(audio_listed):
     if audio_listed is None:
         return None
     else:
-        return f"data/audio/{audio_listed}"
+        if check_file_exists(audio_listed, audio_list):
+            print(f"The file {audio_listed} exists in the list.")
+            return f"data/audio/{audio_listed}"
+        
+        else:
+            print(f"The file {audio_listed} does not exist in the list.")
+            return f"{audio_listed}"
+
 
 def execute_command(command: str) -> None:
     subprocess.run(command, check=True)
@@ -88,17 +111,7 @@ with gr.Blocks(css=css) as demo:
                 with gr.Row():
                     audio_list = gr.Dropdown(
                         label="Choose an audio (optional)",
-                        choices=[
-                            "German1.wav", "German2.wav", "German3.wav", "German4.wav",
-                            "acknowledgement_chinese.m4a", "acknowledgement_english.m4a",
-                            "chinese1_haierlizhi.wav", "chinese2_guanyu.wav",
-                            "french1.wav", "french2.wav", "french3.wav",
-                            "italian1.wav", "italian2.wav", "italian3.wav",
-                            "japan1.wav", "japan2.wav", "japan3.wav",
-                            "korean1.wav", "korean2.wav", "korean3.wav",
-                            "noisy_audio_cafeter_snr_0.wav", "noisy_audio_meeting_snr_0.wav", "noisy_audio_meeting_snr_10.wav", "noisy_audio_meeting_snr_20.wav", "noisy_audio_narrative.wav", "noisy_audio_office_snr_0.wav", "out_of_domain_narrative.wav",
-                            "spanish1.wav", "spanish2.wav", "spanish3.wav"
-                        ],
+                        choices=audio_list,
                         value = "acknowledgement_english.m4a"
                     )
                     audio_list.change(