De gewone stem versterken?
De .vpm file van NEDERLANDS splitst in 100 afzonderlijke wav's. Die kun je dus opnieuw opnemen (of enkele ervan) en weer terug samenvoegen in een .vpm file die terug gezet kan worden in de zumo.
Maak eerst een kopie van deze file op je pc!
I've been busy writing some more new software - it's rather unimaginatively called Voice Utility, and here it is Cool
Download hier
Mirror

Voice Utility will take any Garmin VPM file (not just British_English Smile) and split it into its component audio samples. Once you have changed the samples as you see fit, Voice Utility will then join them back up into a new VPM file for you.
There's no need to have the samples in any particular format - Voice Utility will convert 16-bit (linear PCM) or 8-bit (u-law or a-law) samples, mono or stereo, of any sample rate, into the correct format automatically.
This version is for personal use only - commercial use prohibited without permission
How to get at your VPM files:
On an i3, the VPM files can be found on the memory card - in the /Garmin/Voice/ directory. You'll need a suitable card reader to be able to get at them - if your i3 doesn't have a memory card, then I'm afraid that it can't be done.
On a Nuvi, connect the unit to your computer and you should find the VPM files in the /Garmin/Voice/ directory.
Take a backup of your VPM file before doing anything else!
To split a VPM file into its component samples, run Voice Utility and point it to the file that you want to split. Choose a name for the extracted samples in the space below, then click on the Split button - the numbered samples will be extracted and saved to the specified directory.
To join component samples into a VPM file, point Voice Utility to the first sample (only the first sample in each series is displayed in the file dialog). Choose a name for the new VPM file in the space above, then click on the Join button - it's that simple.
Once you've modified a VPM file, you'll need to set your unit to a different language and then back again to force it to update itself.
Note that the first sample (numbered as _000) is special and should not be altered!
Enjoy!Cool
Link naar de maker van het conversie programma ook gevonden.