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Date: Wed, 12 Mar 2014 22:24:30 +0100
Subject: Bug in /dev/dsp = problems at short wav-files (<2sec)
From: "Dr. Alexander Kleinsorge" <aleks AT physik DOT tu-berlin DOT de>
To: cygwin AT cygwin DOT com
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/dev/dsp has problems playing short wav-files!
# Cygwin 1.7.28 (32bit), Windows 7 (64 bit).

# get 2 test files here ( 25 kB both )
wget http://www.physik.tu-berlin.de/~aleks/wave14sL.wav
wget http://www.physik.tu-berlin.de/~aleks/wave16sL.wav

# Test that fails:
cp wave16sL.wav /dev/dsp ==> I hear something (file = 1.6 sec, 12 kB).
cp wave14sL.wav /dev/dsp ==> I hear nothing ! (file = 1.4 sec, 13 kB).
# Format: both 8000 Hz, mono, 8 bit. (but first file is played truncated!)
aplay same.wav # in Ubuntu 12.04 works fine.
# also any other player (Win32 or Ubuntu is able to play both files fine).

$ file wave14sL.wav wave16sL.wav
wave14sL.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 8 bit,
mono 8000 Hz
wave16sL.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 8 bit,
mono 8000 Hz

$ cat /proc/version
CYGWIN_NT-6.1-WOW64 version 1.7.28(0.271/5/3)
(corinna AT calimero DOT vinschen DOT de) (gcc version 4.8.2 20131016 (Fedora Cygwin
4.8.2-2) (GCC) ) 2014-02-09 21:06

Thanks for reply,
Alexander


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