Garmin MobilePC uses as default Microsoft's TTS Speech Engine with the voice of Anna or Mary.
If you select Anna or Mary the Text is also set to English.
It is not so difficult to change the engine in an other TTS one with a different voice but the spoken direction text (Left On, Right, Roundabout) is fixed by Garmin to English and I don't know how to change that.
So it is only significant to select an engine with an English voice.
System: Windows XP Pro
GarminMobilePC_50060
Select an other Speech Engine:
Get Microsoft voices e.g. speechsdk51.exe from Microsoft:
http://www.microsoft.com/downloads/details.aspx?FamilyID=5e86ec97-40a7-453f-b0ee-6583171b4530&displaylang=en
Install and select Anna's voice.
Select this voice in Garmin, if it's right you will see:
O American English - Anna (Speaks street names)
Exit Garmin.
Install the voice of your choice (Microsoft, Loquendo or Scansoft).
For this example I took Loquendo's 'Simon'.
Change the Speech Engine:
1 - Start the Registry editor by using Start->Run and enter Regedit and hit Enter.
2 - Browse to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Voices\Tokens
3 - There you will see one or more keys containing the names of installed Speech Engines.
e.g. MSSam, LQSimon and MS-Anna-1033-20-SDK
4 - Select the 'Attributes' Key of MS-Anna and change the 'Name' field on the right in 'Microsoft' or 'xxxx'.
5 - Go into the key that resembles the speech engine you want to use and open the 'Attributes' key. e.g. LQSimon
Select the 'Name' field on the right and Edit - Modify this field.
Change 'Simon' to "Microsoft Anna".
6 - Exit Regedit.
That's all.....this is my first post on this forum.