5
SUPPORTED MEDIA
5.1
Formats that can be Used for USB Memory
The USB memory formats that can be used by the file system are given in Table 4. If using
a file system (middleware), a separate contract is required.
Table 4 Recognition Media Capacity and Applicable Formats
No.
Recognition Media
Capacity
1
Max. 256Mbyte
2
256M to 8Gbyte
5.2
Audio Data
The items of audio data for the software development environment offered as a sample
are given in Table 5. If using MP3/AAC file decoder (middleware), a contract is required.
No.
Item
1
File format
2
File name
Sampling
3
rate
4
Bit rate
Channel
5
mode
* Cannot be assembled simultaneously due to restriction of microcontroller built-in RAM
size.
Applicable Formats
FAT16 / FAT32
Table 5 Corresponding Audio Data
Description
MP3 or AAC
"music1.mp3" to "music5.mp3"
"music1.aac" to "music5.aac"
8k/11.025k/12k/16k/22.05k/24k/
32k/44.1k/48k
8k to 320kbps
[MP3]
joint stereo
Intensity stereo
MS stereo
dual channel
[AAC]
stereo(MPEG2/MPEG4)
FAT32
MP3 and AAC cannot be
handled simultaneously. (*)
Unit: Hz
VBR not supported
Sampling rate is up to
160kbps in the case of
44.1kHz/48kHz.
19
AN706-00040-2v0-E
Remarks
Remarks