na

utils/.utils/mogg_to_wav_files.py

@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+
+import wave
+import pyogg
+import numpy as np
+
+import sys
+
+infn = sys.argv[1]
+outbn = sys.argv[2]
+
+
+mogg = pyogg.VorbisFile(infn)
+n_ch = mogg.channels
+print(infn, n_ch)
+
+buff = mogg.buffer
+
+for i in range(n_ch):
+    outfn = outbn + '.%d.wav' % i
+    print(outfn, i)
+    buff_arr = np.frombuffer(buff, dtype='int16')
+    with wave.open(outfn, "wb") as outf:
+        outf.setnchannels(1)
+        outf.setsampwidth(2) # number of bytes
+        outf.setframerate(44100)
+        outf.writeframesraw(buff_arr[i::11].tobytes())