Message & Sound Files

AlienDVR Software

alienVision Client Software

How to record your sound files onto a SD card

It's quite easy to record your own audio for the VoiceOff unit. You just need an audio recording device and a computer.

voiceoff unit

The VoiceOff only plays back audio files that are stored in the industry standard MP3 format, so you need to either record your messages or sound in this format or convert them to it.

Once you have recorded your messages or sounds you need to copy them to an SD card that is then inserted into the VoiceOff unit. The audio files need to be stored on the SD card in a certain way and the files need to be saved with names that allow the VoiceOff unit to know which MP3 file to play depending on which alarm input is triggered.

Inside the lid of the VoiceOff unit you will find a simple diagram and notes about how to do this but I will also explain it here as well.

Please note when you buy your VoiceOff unit, it already comes with a pre-recorded SD card formatted and ready to go.

We recommend when you are playing about with new sound files you use an SD card other than the free one provided with the VoiceOff, so you always have a fall back solution!!

If you wish to use your own SD card and sound files, please follow these steps;

Step 1 – This involves Formatting the SD card.

You will need a standard SD card (also known as a SDHC card) that is 32 Gigabytes or less.

The SD card needs to be formatted to what is called the FAT file system. It is quite possible when you buy your SD card that it is already formatted to this standard, just like the card supplied free with he VoiceOff unit.

You must check before trying to use your own card that it is formatted to the FAT standard as the VoiceOff unit simply cannot play back from SD cards formatted to the FAT32 standard. If your SD card is FAT32 formatted you must change it to the FAT file system instead.

To format your new SD card to the FAT file system, please place the card in a computer running the Windows Operating System. If your computer does not have an SD card reader you will need to obtain one. These do not cost a lot, and are typically used to read multimedia cards from digital cameras.

Using your computer mouse, navigate to the SD card using “My Computer” and right click on it using the mouse. Select the ‘Format’ option from the popup menu that appears, then select the FAT entry from the options presented in the drop list under ‘File System’. Now start the formatting process.

Step 2 – This involves creating a folder on the SD card to store the MP3 files in.

Once the SD card is formatted you need to create a folder on it to store the MP3 files that you wish to play.

The VoiceOff has been pre-programmed to look for a folder on the SD card called “SYSQ”.

Step 3 – Rename your audio files.

The VoiceOff decides which MP3 file to play for each alarm input by how the MP3 files are named.

For example, when alarm input 1 is triggered, the VoiceOff looks for an MP3 file that has been named 0001.mp3. It looks for this file in the folder called SYSQ on the SD card. Similarly if alarm input 2 is triggered, the VoiceOff looks for an MP3 file named 0002.mp3 and so on.

A wide range of additional voice messages and sounds can be downloaded from the VoiceOff website at: www.voiceoff.com.

Once you have renamed each message file, simply place it in the SYSQ folder with the other sound files you have created.

Step 4 – Copy your new folder and its contents on to the SD card
Step 5 – Insert the SD card into the VoiceOff unit.

With your audio files done, renamed and copied to your SD card, you need to insert it into the VoiceOff unit. Please look at the diagram on the lid to see how this is done and which way up the SD card needs to be when inserted into its holder. Please take great care when doing this as it is a delicate PCB and all electronic assemblies need handling with care. If you are a little heavy handed, please get someone with more nimble fingers to do this!!

Ready to play the files!

With the card now correctly inserted back into the VoiceOff unit, you can re-apply the power and trigger the sounds.

On the VoiceOff PCB, alarm input 1 is labelled up P1; alarm input 2 is labelled P2 and so on.

By connecting P1 to the terminal marked VSS (please note VSS is ground) then the MP3 file named 0001.mp3 will now play.

If you wish to replace the messages recorded on the free SD card provided with the VoiceOff unit just make your own sound files and rename them so they overwrite the corresponding files on the card.

You can make your own sounds and record your own messages or alternatively you can download both free and paid for versions from the VoiceOff website. At the website you can also upload text and pay to have this converted to a message by a professional voice over artist.

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