1. CPU
• Windows:  500 Mhz +
• Linux:  500 MHz +
2. Memory
• Linux: 512MB+
• Windows: 512MB+
3. Hard Drive Space:
• SDK Components:  100 MB
• 16khz Voice Fonts:  500 MB (per font)
• 8khz Voice Fonts:  200 MB (per font)
4. Supported Operating System
• Windows:  XP, Server 2003, Vista, Windows 7  (32 & 64 bit), Server 2008
• Linux:  Red Hat Enterprise 5+, CentOS 5+, Fedora Core 5+, Ubuntu 8.04 LTS
• Linux GCC Version:  4.1+
5. Sound Card Requirement
• AT&T Natural Voices only requires a sound card to send generated TTS
  audio output to the speakers.  However, there could be problems with
  trying to use NV with SAPI especially if one of the AT&T voices were
  selected as the default Windows voice in the speech control panel.
  SAPI may not even be available on computers which do not have sound
  cards.  Bottom line is that as far AT&T Natural Voices is concerned an
  audio card is not required to create wav files from a program using
  the C++ or command line interfaces.

Internet Connection is required ONLY for the SDK which includes a trial version of the runtime engine (expires after 180 days). If usage licensing is purchased at the same time as the SDK , then a permanent runtime engine is provided and the internet connection is unnecessary.