Motorola m250 - Manual (Page 57)

Firmware
Firmware is the read-only software that is installed on the player. Like software, it can be updated, but unlike software
it can never be deleted from the player.
Gain
Gain is a measurement of the amplitude of all frequency ranges. Gain adjustments boost or reduce frequencies to
provide a more desirable audio output.
ID3 Tag
The ID3 tag is the part of the encoded MP3 or WMA file that contains information about the digital music file such as
song title, artist, album title, encoding bit rate, track time duration, and so on. ID3 tag information is displayed on the
Album/Artist/Track title line on the player’s LCD.
MP3
MP3 is short for Moving Pictures Experts Group Audio Layer 3. MP3 is the most well-known compressed digital audio
file format. This format allows for near “CD quality” sound, but at a fraction of the size of normal audio files. MP3
conversion of an audio track from CD-ROM can reduce the file size by approximately a 12:1 ratio with virtually no
perceptible loss in quality. MP3 compression removes the redundant and irrelevant parts of a sound signal that the
human ear doesn’t hear. This digital sound encoding and compression process was developed by the Fraunhofer
Institute for Integrated Circuits and Thomson Multimedia. See
Appendix A for more information.
Rip and Encode
Rip and encode refer to the process of extracting (copying, or ripping) audio from a music CD and encoding it into a
compressed digital audio format like MP3 or WMA.
Synchronize
Motorola Digital Music Center can automatically (or manually) delete old content, transfer new audio content, and
keep the content on your m250/m500 fresh and dynamic. Motorola Digital Music Center must be open for
synchronization to occur between your m250/m500 and your computer.
m250/m500 DIGITAL AUDIO PLAYER 57