--- a
+++ b/scripts/generate_libri_csv.py
@@ -0,0 +1,30 @@
+import os
+import sys
+
+
+def main(libri_root, out_file):
+    out_file = open(out_file, 'w')
+    for top_dir in os.listdir(libri_root):
+        if top_dir == 'train-clean-100' or top_dir == 'train-clean-360':
+            for speaker in os.listdir(libri_root + '/' + top_dir):
+                for section in os.listdir(libri_root + '/' + top_dir + '/' + speaker):
+                    trans_file = libri_root + '/' + top_dir + '/' + speaker + '/' + section + '/' + \
+                                 speaker + '-' + section + '.trans.txt'
+
+                    with open(trans_file, 'r') as t:
+                        for line in t:
+                            id_, transcript = line[:-1].split(' ', 1)
+                            transcript = transcript.lower()
+                            audio_file_path = top_dir + '/' + speaker + '/' + section + '/' + \
+                                              id_ + '.wav'
+
+                            out_file.write('libri_' + id_ + '\t' + audio_file_path + '\t' + transcript+'\n')
+
+    out_file.close()
+
+
+if __name__ == '__main__':
+    # needs two command line argument.
+    # 1. root path of LibriSpeech
+    # 2. output csv path
+    main(sys.argv[1], sys.argv[2])