Notes On Mp3/Wma/Aac; Playable Audio File - Panasonic CQ-RX400U Operating Instructions Manual

Notes on MP3/WMA/AAC
iTunes is atrademark of Apple Inc., registered in the U.S.
and other countries/regions.
• The file extension for files encoded with the iTunes Apple
Lossless Encoder is ".m4a", but such files cannot be played
on this player.
• Files under copyright protection cannot be played.
~
Caution
Never assign the ".mp3", ".wma" or ".m4a" file
name extension to a file that is not in the MP31
WMAlAAC format. This may not only produce
noise from the speaker damage, but also damage
your hearing.
Windows
Media"
Designed for
,-
••
Windows Media, and the
Windows logo are trademarks, or
registered trademarks of Microsoft
Corporation in the United States
and/or other countries/regions.
AAC is an abbreviation for "Advanced Audio Coding".
It has been defined as a standard for audio compression
technology using MPEG 2 and MPEG 4.
What is MP3/WMA/AAC?
MP3* (MPEG Audio Layer-3) and WMA (Windows Media™
Audio) are the compression formats of digital audio. The former
is developed by MPEG (Motion Picture Experts Group), and
the latter is developed by Microsoft Corporation. Using these
compression formats, you can record the contents of about
10 music CDs on a single CD media (This figures refer to data
recorded on a 650 MB CD-R or CD-RW at afixed bit rate of
128 kbps and a sampling frequency of 44.1 kHz).
Notes for AAC playback is only for the model CQ·RX400U.
*MPEG Layer-3 audio coding technology licensed from
Fraunhofer.
Note: MP3IWMNAAC encoding and writing software is not
supplied with this unit.
Points to Remember When Making MP3/
WMA/AAC Files
Playable Audio File
CQ-RX400U MP3IWMNAAC
CQ-RX200U
MP3IWMA
CQ-RX100U
MP3IWMA
CQ-RX100L
MP3IWMA
Common
• High bit rate and high sampling frequency are recommended
for high quality sounds.
• Selecting VBR (Variable Bit Rate) is not recommended
because playing time is not displayed properly and sound
may be skipped.
• The playback sound quality differs depending on the
encoding circumstances. For details, refer to the instructions
of your own encoding software and writing software.
MP3
• It is recommended to set the bit rate to "128 kbps or more"
and "fixed".
WMA
• It is recommended to set the bit rate to "64 kbps or more"
and "fixed".
• Do not set the copy protect attribute on the WMA file to
enable this unit to play back.
AAC
• It is recommended to set the bit rate to "128 kbps or more"
and "fixed".
• The formats and extensions for AAC data vary according to
the encoder software used.
• AAC files which can be played on this unit have the" .m4a"
extension and were encoded with Apple iTunes® version 7.