Spaces:
Sleeping
Sleeping
File size: 1,080 Bytes
558c90a |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 |
import soundfile as sf
import numpy as np
from pyloudnorm import Meter, normalize
import os
def normalize_loudness(audio_path, target_loudness, target_path):
"""
归一化音频文件的响度到指定的目标响度。
参数:
audio_path (str): 原始音频文件的路径。
target_loudness (float): 目标响度值(LUFS)。
target_path (str): 归一化后音频的保存路径。
返回:
bool: 归一化操作是否成功。
"""
try:
# 读取音频文件
data, rate = sf.read(audio_path)
# 创建响度仪表,基于ITU-R BS.1770
meter = Meter(rate) # 采样率
# 测量音频的响度
loudness = meter.integrated_loudness(data)
# 响度归一化
normalized_audio = normalize.loudness(data, loudness, target_loudness)
os.makedirs(os.path.dirname(target_path), exist_ok=True)
# 保存归一化后的音频文件
sf.write(target_path, normalized_audio, rate)
return True
except Exception as e:
raise e |