CereProc's v6.1 SAPI voices are compatible with Microsoft SAPI 5 and are supported on Windows XP, Windows Vista, Windows 7 (32bit and 64bit), Windows 8, Windows 8.1, Windows 10 and Windows 11. They appear in the Windows Text-to-Speech Control Panel. All voices are 48kHz (unit selection) and 24kHz (CereWave) for excellent clarity and naturalness.

Download size and disk space usage are around 100MB-200MB.

We recommend using our SAPI voices on systems with at least a 1GHz processor and 256MB RAM.

Please note these voices are for personal use only, e.g. a home user on their own PC. Commercial users of CereProc voices, or users wishing to distribute audio to third parties should use Commercial Use License versions of the voices.