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OPERATION
KEY Assigned IN Searching mode(Table 1)
AS/PS
BND/LOU
M1
M2
M3
M4
M5
M6
MOD
MANU/SKIP
DOWN
MANU/SKIP
UP
SEL
DSP
VOLUME
KNOB
VOLUME KONB (ENCODER) &
MANU/SKIP UP/DOWN buttons:
Searching file and directory during
Navigation.
Mode Select
ENTER
A, B, C, 1
D, E, F, 2
G, H, I, 3
J, K, L, 4
M, N, O, 5/
Directory DOWN
P, Q, R, 6/
Directory UP
S, T, U, 7
V, W, X, 8
Y, Z, SPACE, 9
CHARACTER
SHIFT RIGHT
_, –, +, 0
CHARACTER SELECT
(A, B - 8, 9, 0)
WMA OPERATION
The unit that can play the WMA disc and
the operation is the same with MP3
operation described above.
AUDIO DSP (MP3/WMA DECODER)
The audio DSP converts MP3/WMA
stream data sent from the CD-ROM
decoder to PCM data.
The following standards and bit rate are
supported.
Standard
Bit Rate (kbps) Supported Mode
MPEG1 Audio
320,256,224,
LAYER3
192,160,128,
(48kHz/
112,96,80,64,
44.1kHz/
56,48,40,32
32kHz)
MPEG2 Audio
160,144,128,
LSF LAYER3
112,96,80,64,
(24kHz/
56,48,40,32,
22.05kHz/
24,16,8
16kHz)
Windows
48
Media Audio
(32kHz)
Windows
48
Media Audio
(44.1kHz)
Windows
320,256,192,
Media Audio
160,128,96,
(44.1kHz)
80,64,48
Windows
192,160,128
Media Audio
(48kHz)
The audio DSP automatically identifies
the supported bit rate and mode, and
sampling frequency. MP3 and WMA must
be identified by the microcontroller.
CAUTION: VBR of WMA can be played
back if the bit rate is 48 kbps or higher.
If a bit rate of less than 48 kbps exists in
a stream, that stream cannot be correctly
played back.
You are suggested to play the WMA
stream data with the sampling frequency
of 44.1kHz and the bit rate over 128kbps,
then you can get better effect.
13
STEREO
JOINT STEREO
DUAL CHANNEL
SINGLE CHANNEL
STEREO
JOINT STEREO
DUAL CHANNEL
SINGLE CHANNEL
STEREO
SINGLE CHANNEL
STEREO
STEREO
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