Free MP3 WMA Cutter
Lossy and Lossless Audio File Compression
Audio file compression, also known as data reduction is a process
used to reduce the size of a stereo or multichannel audio file.
A smaller, compressed file reduces the amount of storage space required
making it possible to store more music or video on a portable music
player or hard drive and files can be transferred more quickly via
the Internet or between storage devices. There are two basic methods
for compressing audio - lossless and lossy, and for each of these
methods there are many formats.
Lossless compression means that none of the audio data is removed
during compression. Lossy compression means that audio data is permanently
removed from the audio file. Lossy compression results in smaller
files, but there is no way to rebuild the audio data to its original
format. MP3 is an example of lossy compression.
Lossy Compression Formats
The universal goal of lossy audio compression is to minimize
the necessary information while still maintaining the same "perceptual"
audio quality. Some formats limit their implementation to only CD
quality audio (Musepack) while others are tuned to optimally encode
any format of audio desired (psytel AAC).
Similar to the various programs that use lossless audio compression
techniques, there are many formats which utilize lossy audio compression.
Popularity of this method is held by the "omnipotent"
MP3. It is by the huge public unveiling of this format (think Napster)
that MP3 is known and/or used by the majority of computer users.
Unfortunately, most people have absolutely no idea that there exists
other lossy audio compression formats - some of which are far superior
In contrast to MP3, the popularity of other lossy audio compression
formats (such as Musepack, Ogg Vorbis, or advanced audio coding
is infinitesimally benign) none of these formats can create a userbase
as vast as that of MP3. Ogg Vorbis is another type of lossy compression
and uses *.ogg as the file extension. It is an open-source product
and unlike MP3, there are no patent restrictions on its use.
Lossless Compression Formats
For the audio purist who insists on the best quality sound possible,
lossless compression offers CD quality sound. The tradeoff is larger
files sizes - while MP3 can compress audio in the range of 80% -
90%, lossless compression typically compresses the file by half.
Popular lossless formats include FLAC, Monkey's AudioHealth
Fitness Articles, and SHN (Shorten). These formats are supported
by many audio players and are popular for archiving CD collections
as well as for trading music.
Like what you see?
Download Free MP3 WMA Cutter
Free MP3 WMA Cutter can extract clips of any length from
an audio file. These clips can be used as ringtones of your
mobile phones. You can select the precise start and end time
to add various audio effects like echo, fade-in, fade-out, etc.
and cut the file to save in MP3/WMA/WAV/OGG format.