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MP3 General Information
Dear Customer,
Thank you for buying the Philips MP3-CD Language Learning Machine.Your great new acquisition
will allow you to listen to up to 10 hours of CD-like quality music, using the revolutionary newEnglish
music compression technology MP3.
MP3 technology
MP3 is short for MPEG1 Layer-3 encoding and decoding technology, a very powerful encoding
algorithm with which you can shrink down the orginal digital audio data with a factor of up to 10
without losing signiŢcant sound quality.
Recording and Playback
It is recommended to set your recording bit rate to 128kbps and sampling
frequency at 44.1kHz to achieve CD-like music playback quality.
Since downloading MP3 Ţles from the Internet, ripping songs from your own legal CDOs and
burning MP3 songs onto a CD-R, are a delicate process, the quality of an MP3 song may vary
according to this process. Subsequently, making an MP3-CD may not be entirely perfect.
As a result of the above imperfection, you may experience an occasional Oskip�
while listening, or an occasional delay in accessing Oprevious/next� title to MP3-
CDs.This is considered to be normal.
A comparison chart is enclosed as below:
Sound Bit Rate Approximate Approximate total Comment
QualityReduction Ratio MP3-CD time
AM radio32 kbps 40 : 140 hrsSound quality signiŢcantly
FM radio64 kbps 20 : 120 hrsaffected-not recommended.
Near-CD96 kbps 15 : 115 hrsBalanced sound quality
CD-like128 kbps 10 : 110 hrscompression rate.
CD256 kbps5 : 15 hrsCompression rate low
CD320 kbps3 : 13 hrssuggest to play CDs instead.
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ACEC
