x86
D:\Music\ToDo>wavpackx86.exe -f "01. Atom Heart Mother.wav"
WAVPACK Hybrid Lossless Audio Compressor Win32 Version 4.70.0-rc
Copyright (c) 1998 - 2013 Conifer Software. All Rights Reserved.
created 01. Atom Heart Mother.wv in 4.78 secs (lossless, 46.80%)
D:\Music\ToDo>wavpackx86.exe -f -v "01. Atom Heart Mother.wav"
WAVPACK Hybrid Lossless Audio Compressor Win32 Version 4.70.0-rc
Copyright (c) 1998 - 2013 Conifer Software. All Rights Reserved.
created (and verified) 01. Atom Heart Mother.wv in 9.89 secs (lossless, 46.80%)
D:\Music\ToDo>wavpackx86.exe -h "01. Atom Heart Mother.wav"
WAVPACK Hybrid Lossless Audio Compressor Win32 Version 4.70.0-rc
Copyright (c) 1998 - 2013 Conifer Software. All Rights Reserved.
created 01. Atom Heart Mother.wv in 7.57 secs (lossless, 49.72%)
D:\Music\ToDo>wavpackx86.exe -h -v "01. Atom Heart Mother.wav"
WAVPACK Hybrid Lossless Audio Compressor Win32 Version 4.70.0-rc
Copyright (c) 1998 - 2013 Conifer Software. All Rights Reserved.
created (and verified) 01. Atom Heart Mother.wv in 15.18 secs (lossless, 49.72%)
x64
D:\Music\ToDo>wavpackx64.exe -f "01. Atom Heart Mother.wav"
WAVPACK Hybrid Lossless Audio Compressor Win64 Version 4.70.0-rc
Copyright (c) 1998 - 2013 Conifer Software. All Rights Reserved.
created 01. Atom Heart Mother.wv in 4.68 secs (lossless, 46.80%)
D:\Music\ToDo>wavpackx64.exe -f -v "01. Atom Heart Mother.wav"
WAVPACK Hybrid Lossless Audio Compressor Win64 Version 4.70.0-rc
Copyright (c) 1998 - 2013 Conifer Software. All Rights Reserved.
created (and verified) 01. Atom Heart Mother.wv in 9.57 secs (lossless, 46.80%)
D:\Music\ToDo>wavpackx64.exe -h "01. Atom Heart Mother.wav"
WAVPACK Hybrid Lossless Audio Compressor Win64 Version 4.70.0-rc
Copyright (c) 1998 - 2013 Conifer Software. All Rights Reserved.
created 01. Atom Heart Mother.wv in 7.53 secs (lossless, 49.72%)
D:\Music\ToDo>wavpackx64.exe -h -v "01. Atom Heart Mother.wav"
WAVPACK Hybrid Lossless Audio Compressor Win64 Version 4.70.0-rc
Copyright (c) 1998 - 2013 Conifer Software. All Rights Reserved.
created (and verified) 01. Atom Heart Mother.wv in 14.92 secs (lossless, 49.72%)
Well, I swear when I tested today x86 was faster by half second.
FLAC
Total encoding time: 0:05.407, 263.05x realtime