OSX Lion (10.7) now includes many extra high quality voices. These are not installed by default so you will need to install them manually using the following steps.
System Preferences
![wpid-media_1322569523172.png](https://fixkb.com/wp-content/uploads/2011/12/wpid-media_1322569523172.png)
Open System Preferences and choose the Speech option under the System group.
Speech Panel
![wpid-media_1322569550317.png](https://fixkb.com/wp-content/uploads/2011/12/wpid-media_1322569550317.png)
In the speech panel choose the Text to Speech Tab (1.) along the top of the dialog and then choose System Voice (2.)
Customize the Available Voices
![wpid-media_1322569576207.png](https://fixkb.com/wp-content/uploads/2011/12/wpid-media_1322569576207.png)
In the pop up menu that appears choose Customize…
Select the Voices
![wpid-media_1322569603689.png](https://fixkb.com/wp-content/uploads/2011/12/wpid-media_1322569603689.png)
In the dialog select the voices that you would like to install (1.). The most popular UK English ones such as Daniel and Emily plus a whole host of international voices are all available here.
Once selected click on the OK button (2.).
Confirm and Download
![wpid-media_1322569640255.png](https://fixkb.com/wp-content/uploads/2011/12/wpid-media_1322569640255.png)
Now confirm the installation of the voices by clicking the Install button. An internet connection is required at this stage.
Select the New Voices
![wpid-media_1322831566908.png](https://fixkb.com/wp-content/uploads/2011/12/wpid-media_1322831566908.png)
You will now find the new voices in the System Voice drop down menu.