support audio files from user input

app.py

@@ -18,12 +18,13 @@ def transcribe_long_audio(audio_input, transcriber, chunk_duration=30):
     """Transcribe long audio by splitting into smaller chunks."""
     try:
         if isinstance(audio_input, tuple):  # Recorded audio
-            audio_data, sr = audio_input
+            audio_data, sr = audio_input  # Unpack raw audio data and sample rate
         elif isinstance(audio_input, str):  # Uploaded file path
             audio_data, sr = librosa.load(audio_input, sr=None)
         else:
             raise ValueError("Unsupported audio input format.")
 
+        # Split the audio into chunks
         chunks = split_audio(audio_data, sr, chunk_duration)
         transcriptions = []
         for i, chunk in enumerate(chunks):