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2.1.5.4
Audio (Voice memo)
Audio is recorded linear PCM digital recording system (WAV),
stereo.There is no restriction of audio recording media or spec.
Audio recording is explained as follows.
2.1.5.4.1
Recording mode and sampling frequency
Sampling
Recording mode
Frequency
Data
48 KHz
16 bit
Fine
Standard
16 KHz
16 bit
Economy
8 KHz
16 bit
2.1.5.4.2
Recording time
Fine
SD CF 512MB
44m
MD 2GB
2h50m
MD 4GB
5h47m
The value varies slightly according to each medium, Microdrive,
Compact flash card, and SD card. In addition, these values are
theoretical values, and it does not guarantee the recording time.
2.1.6 About DDD
CF II compliant 1-inch small hard disk (Microdrive) is used as re-
cording media of this model. For operation check and mainte-
nance of this Microdrive, drive fitness test software: Drive
Diagnostics &Disposition (DDD) is provided from Hitachi Global
Storage Technologies (HGST) with a license agreement. HGST
supplies the Microdrive's parts to JVC.
The handling of this software is explained as follows.
Notice
This software is developed to confirm, analyze, and restore the
various kinds of hard disks. However, JVC is allowed to use
DDD software only to test, confirm, and restore the Microdrive
to the factory setting.
Thus, the use of other functions is prohibited.
Using software other than DDD may damage the installed hard
disk of the PC or may disable the reading of the stored data.
Please understand that we do not at all compensate any dam-
age caused by the usage other than instructed, and that we
cannot accept any inquiry.
If you have any questions or requests, please do not contact
HGST that is displayed when installing the software, but do
contact Camcorder CS Group, AV & Multimedia Company.
2.1.6.1
Platform Requirements
DDD operation requires the following platform requirements. Al-
though it may operate on lower specification platforms, we do not
guarantee the operation under such platforms.
PC/AT compatible models ( It cannot be used with Macintosh)
CPU :Pentium 600 MHz or faster
OS:Windows 98/NT4.0(SP4 minimum)
RAM with 192MB or more (NOET1)
Memory: 100MB or more empty hard disk space
PCMCIA card (PC card) TYPE II slot (NOTE2)
Monitor / graphics: 256 colours or more, 800 x 600 minimum,
(1024 x 768 or more is suggested)
NOTE1:
When DDD is installed to a PC with less RAM capacity, the fol-
lowing symptoms may occur.
Recording
Data capacity
Audio mode
bit rate
per minute
Stereo
1.536 Mbps
11.52 MB
Stereo
512 Kbps
3.84 MB
Stereo
256 Kbps
1.92 MB
(Approx. hours, minutes)
Standard
Economy
2h10m
4h25m
8h40m
17h21m
17h21m
34h43m
• An error occurs during the installation, and the installation
does not complete.
• The operation becomes unstable while starting up the soft-
ware.
NOTE 2:
There must be PCMCIA card (PC card) TYPE II slot: equipped
to note PCs and some desktop PCs.
DDD cannot be used with CF / Microdrive reader with USB, or
CF direct insert drives.
2.1.6.2
How to get DDD
(1) DDD (DDD.EXE) can be downloaded from JS-NET. After
download, execute DDD.EXE to create DDD SETUP folder.
2.1.6.3
Installation procedure
(1) Double click the SISetup.exe in the DDD SETUP folder to
start up.
(2) Press Next button to proceed the installation.
Press Next button
(3) Select the PC's start up system for installation.
• IDE, Primary Controller, Master HDD
• IDE, Secondary Controller, Master HDD
• SCSI, First Controller, ID 0
• SCSI, Secondary Controller, ID 0
Double click this program.
(No.YF058)1-11
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