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 tools.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:]))