! Up to eight tiers directory on a USB porta-
ble audio player/USB memor y can be
played back.
! There may be a slight delay when starting
playback of audio files on a USB portable
audio player/USB memory with numerous
folder hierarchies.
! Do not connect anything other than the
USB portable audio player/USB memory.
! Operations may vary depending on the
kind of USB audio player and a USB mem-
or y.
The sequence of audio files on USB
memory
For USB portable audio players, the sequence is
different from that of USB memory and de-
pends on the player.
Example of a hierarchy
: Folder
: Compressed audio file
1
2
3
4
5
6
L
e
v
e
l 1 L
e
v
e
l 2 L
e
v
e
l 3 L
e
v
e
l 4
! 01 to 05 represent assigned folder num-
bers. 1 to 6 represent the playback se-
quence. The user cannot assign folder
numbers and specify the playback se-
quence with this unit.
! Playback sequence of the audio file is the
same as recorded sequence in the USB de-
vice.
! To specify the playback sequence, the fol-
lowing method is recommended.
1 Create the file name including numbers
that specify the playback sequence (e.g.,
001xxx.mp3 and 099yyy.mp3).
2 Put those files into a folder.
3 Record the folder containing files into the
USB device.
However, depending on the system environ-
ment, you cannot specify the file playback
sequence.
Compressed audio compatibility
WMA
! Compatible format: WMA encoded by
Windows Media Player
! Bit rate: 48 kbps to 320 kbps (CBR), 48 kbps
to 384 kbps (VBR)
! Sampling frequency: 32 kHz to 48 kHz
! WindowsMedia Audio 9 Professional, Loss-
less, Voice: No
MP3
! Bit rate: 8 kbps to 320 kbps
! Sampling frequency: 16 kHz to 48 kHz (32,
44.1, 48 kHz for emphasis)
! Compatible ID3 tag version: 1.0, 1.1, 2.2,
2.3, 2.4 (ID3 tag Version 2.x is given priority
than Version 1.x.)
! M3u playlist: No
! MP3i (MP3 interactive), mp3 PRO: No
AAC
! Compatible format: AAC encoded by iTunes
! Sampling frequency: 11.025 kHz to 48 kHz
! Transmission rate: 16 kbps to 320 kbps
! Apple Lossless: No
WAV
! Compatible format: Linear PCM (LPCM),
MS ADPCM
! Quantization bits: 8 and 16 (LPCM), 4 (MS
ADPCM)
! Sampling frequency: 16 kHz to 48 kHz
(LPCM), 22.05 kHz to 44.1 kHz (MS AD-
PCM)
<CRB2972-A/N>93
Additional Information
En
93
Appendix
Additional Information