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""" |
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Audio Processing Utilities |
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Handles audio file preprocessing and standardization. |
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""" |
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from pydub import AudioSegment |
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import io |
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import tempfile |
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import os |
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class AudioProcessor: |
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@staticmethod |
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def standardize_audio(audio_file): |
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"""Standardize audio file to required format. |
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Args: |
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audio_file: Uploaded audio file |
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Returns: |
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str: Path to processed audio file |
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""" |
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try: |
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audio_bytes = io.BytesIO(audio_file.getvalue()) |
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with tempfile.NamedTemporaryFile(suffix=".wav", delete=False) as tmp: |
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if audio_file.name.lower().endswith('.mp3'): |
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audio = AudioSegment.from_mp3(audio_bytes) |
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else: |
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audio = AudioSegment.from_wav(audio_bytes) |
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audio = audio.set_frame_rate(16000) |
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audio = audio.set_channels(1) |
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audio = audio.set_sample_width(2) |
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audio.export( |
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tmp.name, |
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format="wav", |
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parameters=["-ac", "1", "-ar", "16000"] |
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) |
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return tmp.name |
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except Exception as e: |
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raise Exception(f"Error processing audio: {str(e)}") |
