Update app.py

app.py

@@ -699,7 +699,12 @@ with gr.Blocks() as demo:
         formant_shift = gr.Slider(minimum=-2, maximum=2, value=1.0, step=0.1, label="Formant Shift")
         formant_output = gr.Audio(label="Natural-Sounding Vocal", type="numpy")
         formant_btn = gr.Button("Apply Correction")
-        formant_btn.click(fn=formant_correct, inputs=[formant_audio, formant_shift], outputs=formant_output)
+        
+def formant_correct(audio, shift=1.0):
+    samples, sr = audiosegment_to_array(audio)
+    corrected_samples = librosa.effects.pitch_shift(samples, sr=sr, n_steps=shift)
+    return array_to_audiosegment(corrected_samples.astype(np.int16), sr, channels=audio.channels)
+        
 
     # Tab: Voice Swap / Cloning
     with gr.Tab("🔁 Voice Swap / Cloning"):