try using blocks

app.py

@@ -104,9 +104,17 @@ interface = gr.Interface(
     description="Generate variable-length stereo audio at 44.1kHz from text prompts using Stable Audio Open 1.0.",
 )
 
+with gr.Blocks() as demo:                
+    with gr.Tab("Audio"):
+        audio_prompt =  gr.Textbox(label="Prompt", placeholder="Enter your text prompt here")
+        audio_duration = gr.Slider(0, 47, value=30, label="Duration in Seconds")
+        audio_steps =  gr.Slider(10, 150, value=100, step=10, label="Number of Diffusion Steps")
+        audio_cfg = gr.Slider(1, 15, value=7, step=0.1, label="CFG Scale")
+        audio_process_button = gr.Button("Process Audio")
+        audio_output = gr.Audio(type="filepath", label="Generated Audio")
+    audio_process_button.click(generate_audio, [audio_prompt, audio_duration, audio_steps, audio_cfg], [audio_output])
 
 # Pre-load the model to avoid multiprocessing issues
 model, model_config = load_model()
 
-# Launch the Interface
-interface.launch()
+demo.launch()