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A-2 An MP3 Primer
higher the sampling and bitrates of each of these parameters, the better the quality of the sound.
Memory and Audio Quality
The amount of memory and MP3 quality are related. The higher the quality required, the higher
the bitrate needed. This leads to more data storage and memory requirements. The amount of
memory required for the NOMAD IIc player is proportional to audio playback time.
We recommend that you set your encoding bitrate at 128 kbps (see Figure A-1) for
optimal quality when you create MP3 files from audio CDs.
Figure A-1: Playing time versus encoding rate for different memory capacities.
MP3 Web sites
Through web sites, you can download MP3
files either with or without charge and get
information about the latest techniques and
software related with MP3.
Examples of web sites with MP3 content are:
❑
NOMAD World
(http://www.nomadworld.com)
❑
EMusic
(http://emusic.com)
❑
Audible Inc.
(http://www.audible.com)
❑
Audio Explosion, Inc.
(http://www.audioexplosion.com)
❑
AudioHighway.com
(http://www.audiohighway.com)
❑
Big Heavy World
(http://www.bigheavyworld.com)
❑
MP3.com
(http://www.mp3.com)
❑
SINC Recordings
(http://www.sincrecordings.com)
❑
Songs.com
(http://www.songs.com)