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