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- import os,sys,numpy as np
- import traceback
- from scipy.io import wavfile
- # parent_directory = os.path.dirname(os.path.abspath(__file__))
- # sys.path.append(parent_directory)
- from my_utils import load_audio
- from slicer2 import Slicer
- def slice(inp,opt_root,threshold,min_length,min_interval,hop_size,max_sil_kept,_max,alpha,i_part,all_part):
- os.makedirs(opt_root,exist_ok=True)
- if os.path.isfile(inp):
- input=[inp]
- elif os.path.isdir(inp):
- input=[os.path.join(inp, name) for name in sorted(list(os.listdir(inp)))]
- else:
- return "输入路径存在但既不是文件也不是文件夹"
- slicer = Slicer(
- sr=32000, # 长音频采样率
- threshold= int(threshold), # 音量小于这个值视作静音的备选切割点
- min_length= int(min_length), # 每段最小多长，如果第一段太短一直和后面段连起来直到超过这个值
- min_interval= int(min_interval), # 最短切割间隔
- hop_size= int(hop_size), # 怎么算音量曲线，越小精度越大计算量越高（不是精度越大效果越好）
- max_sil_kept= int(max_sil_kept), # 切完后静音最多留多长
- )
- _max=float(_max)
- alpha=float(alpha)
- for inp_path in input[int(i_part)::int(all_part)]:
- # print(inp_path)
- try:
- name = os.path.basename(inp_path)
- audio = load_audio(inp_path, 32000)
- # print(audio.shape)
- for chunk, start, end in slicer.slice(audio): # start和end是帧数
- tmp_max = np.abs(chunk).max()
- if(tmp_max>1):chunk/=tmp_max
- chunk = (chunk / tmp_max * (_max * alpha)) + (1 - alpha) * chunk
- wavfile.write(
- "%s/%s_%010d_%010d.wav" % (opt_root, name, start, end),
- 32000,
- # chunk.astype(np.float32),
- (chunk * 32767).astype(np.int16),
- )
- except:
- print(inp_path,"->fail->",traceback.format_exc())
- return "执行完毕，请检查输出文件"
- print(slice(*sys.argv[1:]))
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