Cepstral builds high quality, natural sounding voices for server, desktop, and hand-held voice applications. Cepstral also provides professional services to customize and tune voices. Cepstral’s high quality text-to-speech voices are available free for trial via the Internet. Cepstral offers 6 different US English voices plus voices for 5 other languages including UK English, Spanish, French, Italian, and German. Cepstral voices are SAPI 5 compliant.
English (UK, US) · French · German · Italian · American Spanish · French Canadian
Cepstral recommend CentOS, but Cepstral 6 voices have also been successfully installed on Ubuntu, Debian, Fedora, Red Hat, and Open SuSE. There is no specific distribution package, only 32 or 64 bits, all provide for free from cepstral web site. All activation keys can be purchased online at the Cepstral web store.
# tar xvzf Cepstral_Alejandra-8kHz_i386-linux_6.0.1.tar.gz # cd Cepstral_Alejandra-8kHz_i386-linux_6.0.1 # ./install.sh
Important : You need to purchase “Save to file” option in order to use http connector
Resgister purchased licenses :
Register a voice :
# swift --reg-voice
Your Name: DEMO LICENSE
Company (if applicable): i6Net
Voice: Alejandra-8kHz
License Key: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
The information you have entered appears to be valid.
Thank you for purchasing Cepstral Alejandra-8kHz.
Register concurrency ports :
swift --reg-ports
Your Name: DEMO LICENSE
Company (if applicable): i6Net
Number of ports
(Leave blank for Unlimited): 4
License Key: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
The information you have entered appears to be valid.
Thank you for purchasing a Cepstral server license.
Register Save File option :
Your Name: DEMO LICENSE
Company (if applicable): i6Net
License Key: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
The information you have entered appears to be valid.
Thank you for purchasing a Cepstral audio distribution license.
You have successfully enabled saving audio to a file.
Package is here : http://downloads.i6net.com/misc/tts/cepstral/
First untar the Cepstal package by using the command:
# tar xvzf cepstral_Vx.x_date.tar.gz
Next, go to the directory of the Cepstral and type the following command:
# cd cepstral_Vx.x_date # ./install.sh
The TTS package install the HTTP scripts in:
/var/www/tts/cepstral
In a default Debian installation, you can test the TTS installation at:
http://yourip/tts/cepstral/
This web page will generate wav files in PCM 8kHz mono.
Install the script on your Apache/PHP server. Configure the VoiceXML Browser (Text-to-Speech Option) and restart the VoiceXML interpreter to get the new configuration.