UPDATE

app.py

@@ -63,7 +63,6 @@ def process_audio(input_file,
 
 with gr.Blocks(title="Audio Fusion") as iface:
     gr.Markdown("<p align='center'><h1>Audio Fusion</h1></p>")
-
     input_audio = gr.Audio(label="Upload your music file", type="filepath")
     
     # 8d Effect and its arguments
@@ -91,6 +90,7 @@ with gr.Blocks(title="Audio Fusion") as iface:
             wet = gr.Slider(label="Reverb - Wet Level", minimum=0, maximum=2, step=0.1, value=0.3)
             dry = gr.Slider(label="Reverb - Dry Level", minimum=0, maximum=2, step=0.1, value=0.8)
 
+    # =====================================================
     def di_v(check):
         if check:
             return {di_col: gr.Column(visiblity=True)}
@@ -110,9 +110,10 @@ with gr.Blocks(title="Audio Fusion") as iface:
             return {re_col: gr.Column(visiblity=False)}
         
 
-    dimension_check.change(visiblity, inputs=[dimension_check], outputs=[di_col])
-    speed_check.change(visiblity, inputs=[speed_check], outputs=[se_col])
-    reverb_check.change(visiblity, inputs=[reverb_check], outputs=[re_col])
+    dimension_check.change(di_v, inputs=[dimension_check], outputs=[di_col])
+    speed_check.change(se_v, inputs=[speed_check], outputs=[se_col])
+    reverb_check.change(re_v, inputs=[reverb_check], outputs=[re_col])
+    # =====================================================
     
     inputs = [input_audio, dimension_check, pan, jump, time, volx, speed_check, speed, reverb_check, room, damp, width, wet, dry]
     output = [gr.Audio(label="Download processed music", type="filepath")]