136   _inFileA.Close();  in Setup()
137   _outFileA.Close();  in Setup()
138   _outFileB.Close();  in Setup()
270   _outFileA.Close();  in EncodeDecode()
271   _outFileB.Close();  in EncodeDecode()
272   _inFileA.Close();  in EncodeDecode()
273   _inFileB.Close();  in EncodeDecode()
310         _inFileA.Close();  in SwitchingSamplingRate()
315         _inFileA.Close();  in SwitchingSamplingRate()
325         _inFileB.Close();  in SwitchingSamplingRate()
330         _inFileB.Close();  in SwitchingSamplingRate()
337   _outFileA.Close();  in SwitchingSamplingRate()
338   _outFileB.Close();  in SwitchingSamplingRate()
339   _inFileA.Close();  in SwitchingSamplingRate()
340   _inFileB.Close();  in SwitchingSamplingRate()