8
FILE FORMAT FOR PLAYBACK
■ PCM file format
Format Sampling
frequency
Quantization
Bit number
Channel
File
extension
PCM 44.1kHz 16bit Stereo wav
Mono
48kHz Stereo
Mono
■ MP3 file format
Format Sampling
frequency
Quantization
Bit number
Channel
Bit rate (kbps)
File
extension
MP3 44.1kHz 16bit Stereo 32- 320, VBR mp3
48kHz Mono
■ Supported media format
Media Logical format
SD FAT16, FAT32
SDHC (32 GB maximum)
* SDHC logo is a trademark.
■ Handled audio files as “track” and playing audio file
• A folder (also called a “directory”) is a hierarchical level.
• After setting media device and searching for all audio files, the DN-F400 assigns each
audio file a track number.
For example in the illustration below, at first each audio file is assigned a track number.
• Folder-AAA, folder-BBB, and folder-DDD contain audio files and can be selected for
operations. But folder-CCC is excluded from operations. Folder-CCC does not contain
audio files, and is excluded from operations.
ROOT (
folder number 01
)
AAA
(
folder number 02
)
BBB
(
folder number 03
)
CCC
DDD
(
folder number 04
)
bbb001.mp3 (Track number 004)
bbb002.txt
aaa001.mp3 (Track number 003)
ddd001.mp3 (Track number 005)
rrr001.mp3 (Track number 001)
rrr002.wav (Track number 002)
• The maximum number of folders is 256 (including the root directory).
• If 1,000 or more files exist, files 1 to 999 will be played.
Files 1,000 and after will not be played back.
• Folder layers are a maximum of 3 (including the root directory).
• A maximum of 64 characters for a filename and 32 characters for a folder name can be
used. (alphabetics in upper- and lower-case letters, numerics, symbols (complying with
FAT))
• A folder that does not include the file to be played has no folder number.
3. DEVICE OPERATION
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