Update app.py

app.py

@@ -284,12 +284,15 @@ async def transcript_to_speech(transcript_text, voice, rate, pitch, speed_adjust
         
     # Apply the low-pass filter here
     cutoff_frequency = 3500  # 3.5 kHz (you can make this a user-configurable parameter later)
+    print(f"Applying Low pass filter, cut off frequency: {cutoff_frequency}")
     filtered_final_audio = apply_low_pass_filter(final_audio, cutoff_frequency, final_audio.frame_rate)
 
     combined_audio_path = tempfile.mktemp(suffix=".mp3")
-    final_audio.export(combined_audio_path, format="mp3")
+    # Export the *filtered* audio here
+    filtered_final_audio.export(combined_audio_path, format="mp3")
     return combined_audio_path, None
 
+
 @spaces.GPU
 def tts_interface(transcript, voice, rate, pitch, speed_adjustment_factor):
     audio, warning = asyncio.run(transcript_to_speech(transcript, voice, rate, pitch, speed_adjustment_factor))