It is a type of encoding used to
transmit digital signals over
analog communication
channels. Actually linear PCM is
an uncompressed format. Only
analog channels can play PCM
format
WAV
WAV is a special audio format
used to storage sound in files
developed by IBM and
Microsoft. It can be read in
almost all Windows
applications.
MP3
It is a format of digital
coding that is used to
storage and reproduce
audio files in almost all
audio reproducers
FLAC
Flac is a format used to code audio archives in
order to compact them without loosing their
quality. Because it is a very new format there
are not so much digital devices that can read it,
but it is increasing in popularity.
WMA
WMA is digital audio format that was
invented to compete with the MP3, and
RealAudio. It was used for the reproduction
of video in DVD and mobile devices. One of
its disadvantages is that the audio lost
quality in this format