Cleaning discs
•Iftherearengerprintsordirtonadisc,wipethemobefore
usingthedisc.Fingerprintsanddirtcanimpairsoundquality
andcauseinterruptionsinplayback.
•Useacommerciallyavailabledisccleaningsetorasoftcloth
tocleandiscs.
Gentlywipethediscfrom
theinsidetowardsthe
outside.
Donotwipeinacircular
motion.
NOTE
Donotuserecordspray,antistaticagents,benzene,thinneror
othersolvents.
Explanation of terms
B
Bit rate
Thisistheamountofaudiodatarecordedonadiscthatisread
inonesecond.
D
Dynamic range
The dierence between the maximum, undistorted sound
levelandtheminimumsoundlevelthatisdiscernibleabove
thenoiseemittedbythedevice.
F
Finalizing
This process enables CDs recorded with a CD recorder or
drivetobeplayedbyotherplayers.
L
Linear PCM
ThisisanuncompressedPCM(PulseCodeModulation)signal.
ThisisthesamesystemusedforCDaudiobutuses192kHz,
96kHz,and48kHzsamplingfrequenciesonBlu-rayDiscor
DVDandprovideshigherresolutionthanCD.
M
MP3 (MPEG Audio Layer 3)
Thisisaninternationallystandardizedaudiodatacompression
scheme,basedonthe“MPEG-1”videocompressionstandard.
It compresses the data volume to about one eleventh its
originalsizewhilemaintainingsoundqualityroughlyequivalent
toamusicCD.
S
Sampling frequency
Samplinginvolvestakinga readingofa soundwave(analog
signal) at regular intervals and expressing the height of the
waveat each readingindigitized format (producingadigital
signal).
The number of readings taken in one second is called the
“sampling frequency”. The larger the value, the closer the
reproducedsoundistotheoriginal.
W
WMA (Windows Media Audio)
This is the audio compression technology developed by
MicrosoftCorporation.
To encode WMA les, only use applications authorized by
MicrosoftCorporation.Ifyouuseanunauthorizedapplication,
thelemaynotworkproperly.