Update src/audio_preprocessing.py

src/audio_preprocessing.py

@@ -162,13 +162,13 @@ def denoise_audio(input_audio_path):
         audio = audio.set_channels(1)        # Convert to mono
         audio = audio.set_sample_width(2)    # Set to 16-bit
         
-        # Export as RAW PCM
-        temp_raw = "temp_audio.raw"
-        audio.export(temp_raw, format="raw")
+        # Export as WAV with correct format
+        temp_wav = "temp_audio.wav"
+        audio.export(temp_wav, format="wav")
         
-        # Run denoising on the RAW PCM data
+        # Run denoising
         result = subprocess.run(
-            ["denoise", temp_raw, output_audio_path, "--plot"],
+            ["denoise", temp_wav, output_audio_path, "--plot"],
             check=True,
             capture_output=True,
             text=True
@@ -176,7 +176,7 @@ def denoise_audio(input_audio_path):
         print(result.stdout)
         
         # Clean up
-        os.remove(temp_raw)
+        os.remove(temp_wav)
         
     except subprocess.CalledProcessError as e:
         print(f"Error: {e}")