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 Readme for:  Development » Library » Audio » libwavpack.lha

Libwavpack

Description: Hybrid Lossless Audio Codec
Download: libwavpack.lha       (TIPS: Use the right click menu if your browser takes you back here all the time)
Size: 609kb
Version: 4.70.0
Date: 21 Mar 14
Author: See AUTHORS file
Submitter: Fredrik Wikstrom
Email: fredrik/a500 org
Homepage: http://www.wavpack.com/
Category: development/library/audio
Replaces: development/library/audio/libwavpack.lha
License: BSD
Distribute: yes
Min OS Version: 4.1
FileID: 8692
 
Comments: 0
Snapshots: 0
Downloads: 34  (Current version)
167  (Accumulated)
Votes: 0 (0/0)  (30 days/7 days)

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Installation:

Copy SDK/#? ALL SDK:
MakeLink SOFT SDK/local/newlib/lib/libwavpack.so libwavpack.so.2

http://www.wavpack.com/

WavPack is a completely open audio compression format providing lossless,
high-quality lossy, and a unique hybrid compression mode. Although the
technology is loosely based on previous versions of WavPack, the new version 4
format has been designed from the ground up to offer unparalleled performance
and functionality.

In the default lossless mode WavPack acts just like a WinZip compressor for
audio files. However, unlike MP3 or WMA encoding which can affect the sound
quality, not a single bit of the original information is lost, so there's no
chance of degradation. This makes lossless mode ideal for archiving audio
material or any other situation where quality is paramount. The compression
ratio depends on the source material, but generally is between 30% and 70%.

The hybrid mode provides all the advantages of lossless compression with an
additional bonus. Instead of creating a single file, this mode creates both a
relatively small, high-quality lossy file that can be used all by itself, and
a "correction" file that (when combined with the lossy file) provides full
lossless restoration. For some users this means never having to choose between
lossless and lossy compression!

WavPack employs only well known, public domain techniques (i.e., linear
prediction with LMS adaptation, Elias and Golomb codes) in its implementation.
Methods and algorithms that have ever been patented (e.g., arithmetic coding,
LZW compression) are specifically avoided. This ensures that WavPack encoders
and decoders will remain open and royalty-free.


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