utils/audio_processing.py

import librosa
import numpy as np
from scipy.signal import butter, filtfilt

class AudioProcessor:
    @staticmethod
    def load_and_process_audio(file_path, target_sr=16000):
        """加载并处理音频文件"""
        # 加载音频文件
        audio_data, sr = librosa.load(file_path, sr=target_sr)
        
        # 归一化音频数据
        audio_data = librosa.util.normalize(audio_data)
        
        return audio_data

    @staticmethod
    def resample(audio_data, orig_sr, target_sr=16000):
        """重采样音频"""
        return librosa.resample(audio_data, orig_sr=orig_sr, target_sr=target_sr)
    
    @staticmethod
    def denoise(audio_data, sr):
        """音频降噪"""
        # 实现降噪逻辑
        return audio_data
    
    @staticmethod
    def normalize(audio_data):
        """音频归一化"""
        return librosa.util.normalize(audio_data)