competition update

language_model/tools/wav2dur.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+# encoding: utf-8
+
+import sys
+
+import torchaudio
+torchaudio.set_audio_backend("sox_io")
+
+scp = sys.argv[1]
+dur_scp = sys.argv[2]
+
+with open(scp, 'r') as f, open(dur_scp, 'w') as fout:
+    cnt = 0
+    total_duration = 0
+    for l in f:
+        items = l.strip().split()
+        wav_id = items[0]
+        fname = items[1]
+        cnt += 1
+        waveform, rate = torchaudio.load(fname)
+        frames = len(waveform[0])
+        duration = frames / float(rate)
+        total_duration += duration
+        fout.write('{} {}\n'.format(wav_id, duration))
+    print('process {} utts'.format(cnt))
+    print('total {} s'.format(total_duration))