JVC KD-R312 Car Stereo System User Manual


 
19ENGLISH
Playing MP3/WMA tracks from a
USB device (for KD-R412/KD-R411/
KD-R35)
• While playing from a USB device, the playback
order may differ from other players.
• This unit may be unable to play back some
USB devices or some files due to their
characteristics or recording conditions.
• Depending on the shape of the USB devices
and connection ports, some USB devices may
not be attached properly or the connection
might be loose.
• Connect one USB mass storage class device to
the unit at a time. Do not use a USB hub.
• If the connected USB device does not have
the correct files, “CANNOT PLAY” appears.
• This unit can show Tag (Version 1.0, 1.1, 2.2,
2.3, or 2.4) for MP3 files and for WMA files.
• This unit can play back MP3/WMA files
meeting the conditions below:
– Bit rate of MP3/WMA: 32 kbps — 320 kbps
– Sampling frequency of MP3:
32 kHz, 44.1 kHz, 48 kHz (for MPEG-1)
16 kHz, 22.05 kHz, 24 kHz (for MPEG-2)
– Sampling frequency of WMA:
22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz
• This unit can play back MP3 files recorded in
VBR (variable bit rate).
• The maximum number of characters for:
– Folder names : 32 characters
– File names : 32 characters
– MP3 Tag : 64 characters
– WMA Tag : 32 characters
• This unit can recognize a total of 5 000 files,
255 folders (255 files per folder including
folder without unsupported files), and of 8
hierarchies.
• This unit does not support SD card reader.
• This unit cannot recognize a USB device
whose rating is other than 5 V and exceeds
500 mA.
• USB devices equipped with special functions
such as data security functions cannot be
used with the unit.
• Do not use a USB device with 2 or more
partitions.
• This unit may not recognized a USB device
connected through a USB card reader.
• This unit may not play back files in a USB
device properly when using a USB extension
cord.
• This unit cannot play back the following files:
– MP3 files encoded with MP3i and MP3 PRO
format.
– MP3 files encoded in an inappropriate
format.
– MP3 files encoded with Layer 1/2.
– WMA files encoded in lossless, professional,
and voice format.
– WMA files not based on Windows Media®
Audio.
Preset sound mode
Tone
Sound element
Frequency Level Q
BASS 60 Hz
80 Hz
100 Hz
200 Hz
–06 to +06 Q1.0
Q1.25
Q1.5
Q2.0
MIDDLE 0.5 kHz
1.0 kHz
1.5 kHz
2.5 kHz
–06 to +06 Q0.75
Q1.0
Q1.25
TREBLE 10.0 kHz
12.5 kHz
15.0 kHz
17.5 kHz
–06 to +06 Q FIX
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