Update app.py

app.py

@@ -43,7 +43,7 @@ WEIGHTS_FILE = "model.safetensors"
 CACHE_DIR    = SPACE_ROOT / "weights"
 CACHE_DIR.mkdir(parents=True, exist_ok=True)
 
-# ================ Repo clone AT STARTUP (per your request) ================
+# ================ Repo clone AT STARTUP (so examples show immediately) ================
 def ensure_repo() -> Path:
     if not REPO_DIR.exists():
         subprocess.run(
@@ -109,6 +109,9 @@ def run_sonicmaster_cli(
     progress: Optional[gr.Progress] = None,
 ) -> Tuple[bool, str]:
     """Run inference via subprocess; returns (ok, message). Uses ONLY infer_single.py."""
+    # 🔧 Ensure a non-empty prompt for the CLI
+    prompt = (prompt or "").strip() or "Enhance the input audio"
+
     if progress: progress(0.14, desc="Preparing inference")
     ckpt = get_weights_path(progress=progress)
 
@@ -190,8 +193,11 @@ def enhance_audio_ui(
     Returns (audio, message). On failure, audio=None and message=error text.
     """
     try:
+        # 🔧 normalize/fallback so --prompt is always passed
+        prompt = (prompt or "").strip()
         if not prompt:
-            raise gr.Error("Please provide a text prompt.")
+            prompt = "Enhance the input audio"
+
         if not audio_path:
             raise gr.Error("Please upload or select an input audio file.")
 
@@ -229,13 +235,14 @@ def enhance_audio_ui(
 with gr.Blocks(title="SonicMaster – Text-Guided Restoration & Mastering", fill_height=True) as _demo:
     gr.Markdown(
         "## 🎧 SonicMaster\n"
-        "Upload audio or pick an example, write a prompt, then click **Enhance**.\n"
+        "Upload audio or pick an example, write a prompt (or leave blank), then click **Enhance**.\n"
+        "If left blank, we'll use a generic prompt: _Enhance the input audio_.\n"
         "- First run downloads model weights (progress will show).\n"
     )
     with gr.Row():
         with gr.Column(scale=1):
             in_audio = gr.Audio(label="Input Audio", type="filepath")
-            prompt   = gr.Textbox(label="Text Prompt", placeholder="e.g., Reduce reverb and brighten vocals.")
+            prompt   = gr.Textbox(label="Text Prompt", placeholder="e.g., Reduce reverb and brighten vocals. (Optional)")
             run_btn  = gr.Button("🚀 Enhance", variant="primary")
 
             # Show 10 audio+prompt examples immediately at startup
@@ -266,4 +273,4 @@ app = demo
 
 # Local debugging only
 if __name__ == "__main__":
-    demo.launch(server_name="0.0.0.0", server_port=7860)
+    demo.launch(server_name="0.0.0.0", server_port=7860)