update

app.py

@@ -126,8 +126,8 @@ demo = gr.Blocks()
 mf_transcribe = gr.Interface(
     fn=transcribe,
     inputs=[
-        gr.Audio(sources="microphone", type="filepath", optional=True),
-        gr.Textbox(lines=1, placeholder="Prompt", optional=True),
+        gr.Audio(sources="microphone", type="filepath"),
+        gr.Textbox(lines=1, placeholder="Prompt"),
     ],
     outputs=["text", "text"],
     layout="horizontal",
@@ -140,8 +140,8 @@ mf_transcribe = gr.Interface(
 file_transcribe = gr.Interface(
     fn=transcribe,
     inputs=[
-        gr.Audio(sources="upload", type="filepath", optional=True, label="Audio file"),
-        gr.Textbox(lines=1, placeholder="Prompt", optional=True),
+        gr.Audio(sources="upload", type="filepath", label="Audio file"),
+        gr.Textbox(lines=1, placeholder="Prompt"),
     ],
     outputs=["text", "text"],
     layout="horizontal",
@@ -154,7 +154,7 @@ yt_transcribe = gr.Interface(
     fn=yt_transcribe,
     inputs=[
         gr.Textbox(lines=1, placeholder="Paste the URL to a YouTube video here", label="YouTube URL"),
-        gr.Textbox(lines=1, placeholder="Prompt", optional=True),
+        gr.Textbox(lines=1, placeholder="Prompt"),
     ],
     outputs=["html", "text", "text"],
     layout="horizontal",