Uploaded files: "click-sound.txt"; "click-sound.wv" and "click-sound-selection.wav" There is an annoying "click" sound when playing some WavPack files using MPlayer under Windows (the "click" sound appears at the end of the decoding process). This issue was introduced in ffmpeg-svn-r7518 (ffmpeg-svn-r7517 does not produce the "click" sound). Note: The "click" sound is only present when using MPlayer. There is no "click" sound when using ffmpeg. Link to the commit message: http://lists.mplayerhq.hu/pipermail/ffmpeg-cvslog/2007-January/006093.html I tried decoding the problematic file using: ffmpeg, mplayer and wvunpack. ffmpeg-svn-r7517: The "click" sound was not present in the resulting WAV file (the total length of the WAV file is 3:18). Command line used: ffmpeg.exe -i click-sound.wv click-sound-ffmpeg-svn-r7517.wav ffmpeg-svn-r7518: The "click" sound was not present in the resulting WAV file (the total length of the WAV file is 3:19). Command line used: ffmpeg.exe -i click-sound.wv click-sound-ffmpeg-svn-r7518.wav mplayer-using-ffmpeg-svn-r7517: The "click" sound was not present in the resulting WAV file (the total length of the WAV file is 3:18). Command line used: mplayer -ao pcm click-sound.wv mplayer-using-ffmpeg-svn-r7518: The "click" sound was present in the resulting WAV file (the total length of the WAV file is 3:19). Command line used: mplayer -ao pcm click-sound.wv wvunpack: The "click" sound was not present in the resulting WAV file (the total length of the WAV file is 3:18). Command line used: wvunpack click-sound.wv Information according to foobar2000 v0.9.4.2: click-sound.wv --> 3:18.587 (8757672 samples); 20 373 546 bytes click-sound-ffmpeg-svn-r7517.wav --> 3:18.587 (8757672 samples); 35 030 732 bytes click-sound-ffmpeg-svn-r7518.wav --> 3:19.675 (8805672 samples); 35 222 732 bytes click-sound-using-ffmpeg-svn-r7517.wav --> 3:18.587 (8757672 samples); 35 030 732 bytes click-sound-using-ffmpeg-svn-r7518.wav --> 3:19.675 (8805672 samples); 35 222 732 bytes click-sound-wvunpack.wav --> 3:18.587 (8757672 samples); 35 030 732 bytes Note: Even if "click-sound-ffmpeg-svn-r7518.wav" and "click-sound-using-ffmpeg-svn-r7518.wav" seem to be the same, only the latter has the "click" sound at the end of the track (check "click-sound-selection.wav"). CRC32 according to fsum 2.51: 4b386f25 ?CRC32*click-sound.wv d11c9c3f ?CRC32*click-sound-ffmpeg-svn-r7517.wav 13f0e698 ?CRC32*click-sound-ffmpeg-svn-r7518.wav d11c9c3f ?CRC32*click-sound-using-ffmpeg-svn-r7517.wav f5e15c1c ?CRC32*click-sound-using-ffmpeg-svn-r7518.wav d11c9c3f ?CRC32*click-sound-wvunpack.wav I hope you can understand this report.