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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:])) | |