VYEX

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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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