Webster Voice Package English 

http://www.mediafire.com/?ky1jynwviiz

http://www.mediafire.com/?tz1ql22zmdx

http://www.mediafire.com/?ytzemjzey5g

(http://www.lingoes.net/en/translator/speech.htm)

Install Natural Voice package
The way is very easy, open the folder named speech in "installation folder of Lingoes", and create a new folder in it with name of the natural voice, then unzip the downloaded natural voice package into the new folder.
If you want to uninstall some one package, just del the folder of the package.
Now we demonstrate the installation method to take Lingoes Basic English Voice Package for example:

1. First, create a new folder named "Lingoes English" in speech folder of installation folder of Lingoes, the path is:

    Installation folder of Lingoes\speech\Lingoes English\ 2. Download the zip file of Lingoes Basic English Voice Package, then unzip all files and folders in the zip file into the new folder.
3. Then choose "Lingoes English" in the list of "Configuration"→"Speech"→"Natural Voice Engine"→"Voice"
4. After install/change the package, remember to click the button "Rebuild Index file", so lingoes will rebuild a index file for every voice package correctly, it will improve and speed up rate of search and play the natural voice.