Update app.py

app.py

@@ -4,6 +4,7 @@ import numpy as np
 import tempfile
 import librosa
 import soundfile as sf
+import os
 
 class SimpleMP3Humanizer:
     def __init__(self):
@@ -47,12 +48,7 @@ class SimpleMP3Humanizer:
     def create_simple_music(self, midi, y, sr, duration, style, intensity):
         """Create basic musical structure"""
         # Create beats
-        num_beats = int(duration * 2)  # 2 beats per second
-        if num_beats < 8:
-            num_beats = 8
-        if num_beats > 32:
-            num_beats = 32
-            
+        num_beats = max(8, min(32, int(duration * 2)))  # 2 beats per second
         beat_times = np.linspace(0, duration, num_beats)
         
         instruments = midi.instruments
@@ -129,12 +125,12 @@ def convert_mp3(input_mp3, style, intensity):
         output_path = tempfile.mktemp(suffix='_humanized.mp3')
         sf.write(output_path, audio_data, sr)
         
-        return output_path, "✅ Conversion successful! Download your humanized song below."
+        return output_path, "✅ Conversion successful! Your humanized song is ready below."
         
     except Exception as e:
         return None, f"❌ Error: {str(e)}"
 
-# Clean and simple interface
+# Simple and compatible interface
 with gr.Blocks(theme=gr.themes.Soft(), title="MP3 Humanizer") as demo:
     gr.Markdown("""
     # 🎵 MP3 Humanizer
@@ -159,7 +155,7 @@ with gr.Blocks(theme=gr.themes.Soft(), title="MP3 Humanizer") as demo:
             
             intensity = gr.Slider(
                 0.1, 1.0, value=0.7,
-                label="Human Feel"
+                label="Human Feel Intensity"
             )
             
             convert_btn = gr.Button(
@@ -176,36 +172,33 @@ with gr.Blocks(theme=gr.themes.Soft(), title="MP3 Humanizer") as demo:
                 interactive=False
             )
             
-            download_btn = gr.DownloadButton(
-                "📥 Download MP3",
-                visible=False,
-                size="lg"
-            )
-            
             status = gr.Textbox(
                 label="Status",
                 interactive=False
             )
     
-    # Simple conversion process
+    # Simple instructions
+    with gr.Accordion("📖 How to Use", open=True):
+        gr.Markdown("""
+        1. **Upload** your AI-generated MP3 file
+        2. **Choose** your preferred music style
+        3. **Adjust** the human feel slider
+        4. **Click Convert** and wait a few seconds
+        5. **Play the preview** to hear your humanized song
+        6. **Click the download icon** in the audio player to save your MP3
+        
+        That's it! You'll get a complete MP3 file with drums, bass, melody, and human-sounding timing.
+        """)
+    
+    # Conversion process
     def process_conversion(input_mp3, style, intensity):
         output_path, message = convert_mp3(input_mp3, style, intensity)
-        if output_path:
-            return output_path, output_path, gr.DownloadButton(visible=True), message
-        else:
-            return None, None, gr.DownloadButton(visible=False), message
+        return output_path, message
     
     convert_btn.click(
         fn=process_conversion,
         inputs=[input_audio, style, intensity],
-        outputs=[output_audio, download_btn, download_btn, status]
-    )
-    
-    # Update download button when audio is ready
-    output_audio.change(
-        lambda x: gr.DownloadButton(visible=(x is not None)),
-        inputs=[output_audio],
-        outputs=[download_btn]
+        outputs=[output_audio, status]
     )
 
 if __name__ == "__main__":