Support
Product update and support files can be found on our ftp
site.
Click here to browse files
using http file access.
Click here
to browse files using ftp file access.
7KDAB
WAV Files
Supplied Audio Files
The product is supplied with a 16MB MultiMedia Card with
a default library of approximately 2500 words. Of the words
in the library, approximately 1000 of those words are digitized
versions of the origional speech synthesizer board and have
been provided in muLaw compressed WAV file format. The balance
of the words were recorded for Vyex by Sean
Caldwell, KF4IWT, and are provided in ADPCM compressed
WAV file format.
The user may wish to reduce their file storage overhead by
deleting unused words from the library, and in some cases
may want to use a higher quality version of certain WAV files.
For those users wish wish to mix and match words on their
own, three different versions of all supplied files are available
on the FTP download site.
As explained in the user manual, non-compressed file formats
will yield the overall best audio quality, especially if you
wish to normalize some audio files to different levels, or
to apply filtering to the files, such as pre-emphasis. For
these reasons, the 16bit PCM version of the files are made
available to you and will provide the best overall results,
but they will also take up the most amount of storage space
on the FLASH card.
Recording your own Audio Files
While the supplied libraries will be useful in creating single
word responses or seldom used phrases, the real benefit to
this product is the ability to create your own custom audio
tracks for the frequently used messages used on your repeater.
While the use of a professional voice over talent to record
your audio tracks is recommended, you can certainly obtain
good results on your own with your desktop computer and a
microphone. If you do decide to record your own audio tracks,
please keep in mind that the built in sound card in your home
computer may artifically roll off the high frequency content
of your recorded material and give you the impression that
you need to user higher sample rates to obtain a good quality
recording. For these users, I recommend either investing in
a higher end sound card, or recording the audio at a higher
sample rate, and then using a sound editing program to down
sample the audio to a more moderate sample rate such as 11.025kHz.
Product Firmware Updates
Products are currently shipping with version 2.2 firmware.
Download
version 2.2 firmware here
View version history
HowTo - Firmware Update Using a FLASH Card Reader
1.) Download the new firmware binary file to a temporary
storage location on your computer.
2.) Remove the MMC card from the DAB and place it in your
FLASH card drive.
2.) Copy the firmware binary file into the root directory
on the card.
3.) After the file copy has completed, wait 30 seconds before
removing the card from the drive to allow the system to flush
any unwritten data to the disk.
4.) Re-insert the card into the DAB
5.) When the card is re-inserted and power is applied, you
will see the message "Updating FLASH program", followed
by a reset message indicating a software reboot. You should
note that the power on message indicates that the new version
of firmware is running.
6.) Once the firmware update is complete, you may delete
the firmware binary file from the MMC card.
HowTo - Firmware Update Using a Terminal Emulator
1.) Download the new firmware binary file to a temporary
storage location on your computer.
2.) Using a terminal emulator, issue the "RY" command
at the "7kDAB> prompt.
3.) Within your terminal emulator, initiate a Y-MODEM file
transfer of the new binary firmware file. You only have 30
seconds to start the file transfer or the DAB will timeout
and cancel the file transfer.
4.) When the file transfer is complete, issue the "reboot"
command at the command prompt.
5.) When the DAB reboots, you will see the message "Updating
FLASH program", followed by a reset message indicating
a software reboot. You should note that the power on message
indicates that the new version of firmware is running.
6.) Once the firmware update is complete, you may delete
the firmware binary file from the MMC card.
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