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English
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 new
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 significant 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 files from the Internet, ripping songs from your own legal CD’s 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 “skip”
while listening, or an occasional delay in accessing “previous/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
Quality
Reduction Ratio MP3-CD time
AM radio
32 kbps
40 : 1
40 hrs
Sound quality significantly
FM radio
64 kbps
20 : 1
20 hrs
affected-not recommended.
Near-CD
96 kbps
15 : 1
15 hrs
Balanced sound quality
CD-like
128 kbps
10 : 1
10 hrs
compression rate.
CD
256 kbps
5 : 1
5 hrs
Compression rate low
CD
320 kbps
3 : 1
3 hrs
suggest to play CDs instead.
AZ6188_01_Eng(NEW) 4/22/04 16:52 Page 5
