Please note that you don't need to read any of this to use Gilbert 21! This is
merely more information for those who are curious.
Whenever the Visointac is used to make a record in the field, the device creates a standard WAV file
which is a voice recording of what was said. The name of
this file is stored in a CSV file which includes the location (WGS 84
latitude and longitude) and the date & time (amongst other things). Whilst it
is switched on the device is also regulary recording your position in this CSV
file - even when you are not recording tags - which means that you end up with
an entire 'track' of where you have been.
On the right you can see an image which shows a list of files which would
typically be produced by the Vistiontac device for a single 'trip' where a
number of voice tags were made. In fact this listing is for the files provided
as a downloadable sample.
The image below shows a section of the CSV file (opened in MS Excel).
The
Visiontac is creating a tracking point every few seconds (denoted by 'T' in the
TAG column), but whenever a voice tag is made (denoted by 'V' in the TAG column)
the name of the WAV file (minus the file extension) is stored in the VOX column.
The other columns are fairly self-explanatory: DATE is in the format yymmdd;
TIME is in the format hhmmss; latitude and longitude are in WGS 84 coordinates.