Delete cmvn-converter.py

egs/aishell/transformer/utils/cmvn-converter.py

@@ -1,54 +0,0 @@
-import argparse
-import json
-import numpy as np
-
-
-def get_parser():
-    parser = argparse.ArgumentParser(
-        description="cmvn converter",
-        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
-    )
-    parser.add_argument(
-        "--cmvn-json",
-        "-c",
-        default=False,
-        required=True,
-        type=str,
-        help="cmvn json file",
-    )
-    parser.add_argument(
-        "--am-mvn",
-        "-a",
-        default=False,
-        required=True,
-        type=str,
-        help="am mvn file",
-    )
-    return parser
-
-def main():
-    parser = get_parser()
-    args = parser.parse_args()
-
-    with open(args.cmvn_json, "r") as fin:
-        cmvn_dict = json.load(fin)
-
-    mean_stats = np.array(cmvn_dict["mean_stats"])
-    var_stats = np.array(cmvn_dict["var_stats"])
-    total_frame = np.array(cmvn_dict["total_frames"])
-
-    print(mean_stats.dtype)
-    mean = -1.0 * mean_stats / total_frame
-    var = 1.0 / np.sqrt(var_stats / total_frame - mean * mean)
-    dims = mean.shape[0]
-    with open(args.am_mvn, 'w') as fout:
-        fout.write("<Nnet>" + "\n" + "<Splice> " + str(dims) + " " + str(dims) + '\n' + "[ 0 ]" + "\n" + "<AddShift> " + str(dims) + " " + str(dims) + "\n")
-        mean_str = str(list(mean)).replace(',', '').replace('[', '[ ').replace(']', ' ]')
-        fout.write("<LearnRateCoef> 0 " + mean_str + '\n')
-        fout.write("<Rescale> " + str(dims) + " " + str(dims) + '\n')
-        var_str = str(list(var)).replace(',', '').replace('[', '[ ').replace(']', ' ]')
-        fout.write("<LearnRateCoef> 0 " + var_str + '\n')
-        fout.write("</Nnet>" + '\n')
-
-if __name__ == '__main__':
-    main()