UPDATE

app.py

@@ -69,6 +69,7 @@ with gr.Blocks(title="Audio Fusion") as iface:
     # 8d Effect and its arguments
     with gr.Tab("8d Effect"):
         d_check = gr.Checkbox(label="Apply 8D effect")
+        with gr.Column():
             pan = gr.Slider(label="8D - Pan Boundary", minimum=0, maximum=100, value=100)
             jump = gr.Slider(label="8D - Jump Percentage", minimum=1, maximum=100, value=5)
             time = gr.Slider(label="8D - Time L to R (s)", minimum=1, maximum=30, value=10)
@@ -77,6 +78,7 @@ with gr.Blocks(title="Audio Fusion") as iface:
     # SLowed Effect and its arguments
     with gr.Tab("Slowed Effect"):
         speed_check = gr.Checkbox(label="Apply slowed effect"),
+        with gr.Column():
             speed = gr.Slider(label="Slowed - Speed Multiplier", minimum=0.1, maximum=4, step=0.01, value=0.92),
     
     # Reverb Effect and its arguments