WavPack 這次更新較為重大，在 Winamp plugin 方面，轉換、Tag 上開始完全支援 Unicode。建議升級替換。
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WavPack command-line encoder version 4.50b
‧dynamic noise shaping standard in hybrid mode (except when -cc
specified or high sampling rates)
‧param added to -s option (-sd) to force dynamic shaping when not
otherwise selected (--dns from the alpha deprecated)
‧added --channel-order option to specify channel order when it
doesn't match Microsoft standard
‧added --merge-blocks option for use with --blocksize option when
compressing LossyWAV output or decoded HDCD audio
‧increased minimum for --blocksize option to 128 (or 16 when
combined with --merge-blocks)
‧reformatted and expanded --help display
WavPack plugin for Winamp version 2.5b
‧added transcoding API (allows CD burning, format conversion,
Replaygain calc)
‧allow standard Winamp metadata display and editing to work
‧added API for writing metadata from Winamp (for Auto-Tag, etc.)
‧Unicode support for info box (older Winamps) and media library
‧added option to pass multichannel audio to output
‧added option to pass all audio as 16-bit (for better compatibility)
‧added option to output 24-bit audio when ReplayGain is active
‧changed high-resolution output from 32-bit to 24-bit (allows
winamp EQ to work, and probably other things)
‧improved performance of adding tracks to library, especially from
network drives
‧fixed bug that caused the seek bar to sometimes vacillate when
moved
‧added genre display to info box (for older Winamps)
