Update app.py

app.py

@@ -3,9 +3,10 @@ import noisereduce as nr
 import soundfile as sf
 import io
 import numpy as np
+from pydub import AudioSegment
 
 # Define a Streamlit app
-st.title("Audio Noise Reduction App")
+st.title("Audio Processing App")
 
 # Upload the input audio file
 uploaded_audio = st.file_uploader("Upload an audio file", type=["mp3", "wav"])
@@ -20,9 +21,24 @@ if uploaded_audio is not None:
     st.write("Applying noise reduction...")
     reduced_audio = nr.reduce_noise(y=audio, sr=sample_rate)
 
+    # Convert the reduced audio to an AudioSegment for further processing
+    audio_segment = AudioSegment(
+        reduced_audio.tobytes(),
+        frame_rate=sample_rate,
+        sample_width=reduced_audio.dtype.itemsize,
+        channels=1  # Assuming mono audio
+    )
+    
+    # Slow down the audio
+    st.write("Slowing down audio...")
+    slowed_audio = audio_segment.speedup(playback_speed=0.7)  # Adjust the speed factor as needed
+
+    # Export the slowed audio to a WAV file
+    slowed_audio.export("output_audio.wav", format="wav")
+
     # Provide a link to download the processed audio
-    st.audio(reduced_audio, format="audio/wav", sample_rate=sample_rate)
+    st.audio("output_audio.wav")
 
 # Run the Streamlit app
 if __name__ == "__main__":
-    st.write("Upload an audio file to apply noise reduction.")
+    st.write("Upload an audio file to apply noise reduction and slow down the audio.")