Overview
MP3 is rapidly becoming the defacto standard for the delivery of
high quality music on the Internet. This technology has been well
received as evidenced by the over 5 million MP3 software plug-ins
that have been downloaded to date. This is a testament to the future
potential of the MP3 technology considering the relatively limited
marketing it has received. The benefits of purchasing music on line
far surpass those of purchasing other products on line. Because
the music is stored in a digital format on the hard drive of a server,
the music is always in stock; the consumer can try before buying,
and doesn't have to wait for a delivery truck to deliver the music
- it's instantly downloaded to his hard drive. This is perhaps as
close as you can get to instant gratification. These very compelling
benefits may cause the traditional record store to become obsolete.
MP3 is a compressed digital audio format that keeps the file size
small without losing the quality of the original audio. MP3 allows
audio files to be compressed to approximately 1/11th of the original
size. For example, a typical music CD consumes 650MB, using MP3
the same audio only takes 55MB. This has allowed music to be stored
on the PCs hard drive, allowing users to effortlessly create and
customize music play lists.
Perhaps one of the more interesting applications of MP3 technology
is in the construction of a portable music player. The compression
achieved by MP3 makes it practical to construct a portable audio
player based upon FLASH memory as the storage medium. The benefits
to a solid state player are many such as being impervious to shock
and vibration, no degradation of media over multiple plays, extremely
small form factor, and low power consumption and long battery life
due to the elimination of high current consumption devices, such
as motors.
There are several other formats beyond MP3 being discussed, some
with better compression algorithms, others with advanced copyright
security and some with both such as a2b, EPAC, TwinVQ, MPEG-4.
Xilinx Solutions
The Xilinx Spartan-II FPGA and CoolRunner CPLD programmable logic
solutions offer the flexibility to build products that can be reprogrammed
in the field at costs far below any programmable solution. Please
view the presentation
to see how Xilinx solutions can help you build products for this
fast evolving market place.
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