Cepstral Support FAQ

If you do not find answers to your questions please feel free to open a support ticket.

Free Software Trial

We encourage customers to download Cepstral voices before purchasing activation keys. This ensures that the voice works properly with your telephony system. This is especially important as we have a strict no refund policy. Voices come fully functional, but you will hear a gentle reminder to activate your voice before any synthesis until you purchase the applicable activation keys from our online store.

How do I install Cepstral software?

Cepstral 5 and Cepstral 6 voices are NOT compatible, so you must uninstall ALL Cepstral 5 products before installing a Cepstral 6 voice. Once that is complete, just run the Cepstral 6 installer file you downloaded and follow the instructions on the screen. We highly recommend the Typical installation. In this case, everything needed to successfully install your voice is handled automatically. Upon completion you will have a "Cepstral" program group in your Start menu, with a shortcut to SwiftTalker and Cepstral Tools inside.

Enter Your Voice Activation Key

Method #1:

Enter your Voice activation key from "Start" -> "Programs" (or "All Programs") -> "Cepstral" -> and right-click "Cepstral Tools." Select "run as administrator". Once Cepstral Tools is open click on the "Activation Keys" tab and enter your registration information and Activation Key exactly as it appears in the email.

How to enter your License Key on Windows

Method #2: Alternatively, you can enter your license key using the command-line Swift utility with the Windows command prompt (located at "Start Menu" -> "Run" -> type "cmd" then hit Enter).

To register a voice using the swift executable, call Swift with the '--reg-voice' switch. You will be prompted to enter your name, your company name, the name of the voice you wish to register, and then the license key.


   swift --reg-voice



                 Your Name: John Q. Public

   Company (if applicable): Acme Widgets

                     Voice: David

               License Key: xx-xxxxxx-xxxxxx-xxxxxx-xxxxxx-xxxxxx

You will receive feedback regarding the validity of your entries. If the information is valid, the voice will no longer nag.

Enter Concurrency Ports Activation Key

Method #1:

Enter your Port activation key from "Start" -> "Programs" (or "All Programs") -> "Cepstral" -> and right-click "Cepstral Tools." Select "run as administrator". Once Cepstral Tools is open click on the "Activation Keys" tab and enter your registration information and Activation Key exactly as it appears in the email.

How to enter your Port Activation Key in Windows

Method #2: Alternatively, you can enter your activation key using the command-line Swift utility with the Windows command prompt (located at "Start Menu" -> "Run" -> type "cmd" then hit Enter).

To register purchased concurrency ports using the swift executable, call Swift with the '--reg-ports' switch. You will be prompted to enter your name, your company name, the number of ports you wish to register, and then the activation key.


sudo swift --reg-ports

	                  Your Name: John Q. Public

            Company (if applicable): Acme Widgets

                    Number of ports: 8

                        License Key: xx-xxxxxx-xxxxxx-xxxxxx-xxxxxx-xxxxxx

You will receive feedback regarding the validity of your entries. If the information is valid, your concurrency license will be active immediately.

Enter a Save to File Activation Key

Method #1:

Enter your Save to File activation key from "Start" -> "Programs" (or "All Programs") -> "Cepstral" -> and right-click "Cepstral Tools." Select "run as administrator". Once Cepstral Tools is open click on the "Activation Keys" tab and enter your registration information and activation key exactly as it appears in the email.

How to enter your Save to File Activation Key in Windows

Method #2: Alternatively, you can enter your activation key using the command-line Swift utility with the Windows command prompt (located at "Start Menu" -> "Run" -> type "cmd" then hit Enter).

To register your Save to File purchase using the swift executable, call Swift with the '--reg-filewrite' switch. You will be prompted to enter your name, your company name, and then the activation key.


   swift --reg-filewrite



                 Your Name: John Q. Public

   Company (if applicable): Acme Widgets

               License Key: xx-xxxxxx-xxxxxx-xxxxxx-xxxxxx-xxxxxx

You will receive feedback regarding the validity of your entries. If the information is valid, your license to save synthesis will be active immediately.