Update app.py

app.py

@@ -568,43 +568,39 @@ with gr.Blocks(css="""
             outputs=output_audio_sat
         )
 
-    # --- Vocal Doubler / Harmonizer ---
-    with gr.Tab("🎧 Vocal Doubler / Harmonizer"):
-         input_audio_harmony = gr.Audio(label="Upload Vocal Clip", type="filepath")
-         output_audio_harmony = gr.Audio(label="Doubled Output", type="numpy")
-         status_harmony = gr.Textbox(label="Status", interactive=False)
-         harmony_btn = gr.Button("Add Harmony")
-
-         harmony_btn.click(
-         fn=run_harmony,
-         inputs=input_audio_harmony,
-         outputs=[output_audio_harmony, status_harmony]
-    )
+   with gr.Tab("🎧 Vocal Doubler / Harmonizer"):
+        input_audio_harmony = gr.Audio(label="Upload Vocal Clip", type="filepath")
+        output_audio_harmony = gr.Audio(label="Doubled Output", type="numpy")
+        status_harmony = gr.Textbox(label="Status", interactive=False)
+        harmony_btn = gr.Button("Add Harmony")
+
+        harmony_btn.click(
+            fn=run_harmony,
+            inputs=input_audio_harmony,
+            outputs=[output_audio_harmony, status_harmony]
+        )
 
 
     # Add your remaining tabs (Batch Processing, Save/Load Project, Auto-Tune, etc.)
     # similar to above, adapting outputs to return (samples, sr) tuples for gr.Audio (type="numpy").
 
-def run_harmony(audio_path):
-    if not audio_path:
+def run_harmony(audio_file):
+    if not audio_file:
         return None, "❌ Upload a vocal clip first."
     try:
-        audio = AudioSegment.from_file(audio_path)
+        audio = AudioSegment.from_file(audio_file)
         out_audio = apply_harmony(audio)
-        out_path = os.path.join(tempfile.gettempdir(), "harmony_output.wav")
-        out_audio.export(out_path, format="wav")
+        out_path = save_audiosegment_to_temp(out_audio, suffix=".wav")
 
-        # Load audio to numpy array for Gradio
+        # Load audio as numpy array for Gradio output type="numpy"
         samples, sr = sf.read(out_path, dtype='int16')
         return (samples, sr), "✅ Success"
     except Exception as e:
         return None, f"❌ Error: {str(e)}"
 
-    harmony_btn.click(
-    fn=run_harmony,
-    inputs=input_audio_harmony,
-    outputs=[output_audio_harmony, status_harmony]
-)
+with gr.Blocks(css="""
+    /* your CSS here */
+""") as demo:
 
 # --- Batch Processing ---
     # --- Batch Processing ---