Create app.py

app.py

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+import streamlit as st
+import librosa
+import soundfile as sf
+import numpy as np
+from io import BytesIO
+import tempfile
+
+def process_audio(audio_file, pitch_factor=8):
+    # Load the audio file
+    y, sr = librosa.load(audio_file)
+    
+    # Pitch shift using librosa (female voice typically higher pitch)
+    y_shifted = librosa.effects.pitch_shift(y, sr=sr, n_steps=pitch_factor)
+    
+    # Apply some feminine characteristics
+    # Smooth the audio slightly
+    y_smooth = librosa.effects.preemphasis(y_shifted)
+    
+    # Normalize audio
+    y_normalized = librosa.util.normalize(y_smooth)
+    
+    return y_normalized, sr
+
+def save_audio(audio_data, sr):
+    # Save processed audio to BytesIO object
+    buffer = BytesIO()
+    sf.write(buffer, audio_data, sr, format='WAV')
+    return buffer
+
+st.title("Voice Changer - Female Voice Conversion")
+
+# File uploader
+uploaded_file = st.file_uploader("Upload an audio file", type=['wav', 'mp3'])
+
+if uploaded_file is not None:
+    # Save uploaded file temporarily
+    with tempfile.NamedTemporaryFile(delete=False, suffix='.wav') as tmp_file:
+        tmp_file.write(uploaded_file.getvalue())
+        tmp_path = tmp_file.name
+
+    # Pitch adjustment slider
+    pitch_factor = st.slider("Pitch Adjustment", 0.0, 12.0, 8.0, 0.5)
+    
+    if st.button("Convert to Female Voice"):
+        # Process the audio
+        try:
+            processed_audio, sr = process_audio(tmp_path, pitch_factor)
+            
+            # Save processed audio
+            audio_buffer = save_audio(processed_audio, sr)
+            
+            # Create download button
+            st.audio(audio_buffer, format='audio/wav')
+            
+            # Add download button
+            st.download_button(
+                label="Download Converted Audio",
+                data=audio_buffer,
+                file_name="female_voice.wav",
+                mime="audio/wav"
+            )
+            
+        except Exception as e:
+            st.error(f"Error processing audio: {str(e)}")
+
+# Add instructions
+st.markdown("""
+### Instructions:
+1. Upload a WAV or MP3 audio file
+2. Adjust the pitch slider (higher values = more feminine voice)
+3. Click 'Convert to Female Voice'
+4. Play the converted audio
+5. Download the result if satisfied
+
+### Notes:
+- Best results with clear audio input
+- Recommended pitch adjustment: 6-8 for natural-sounding results
+- Larger files may take longer to process
+""")