HomeKurzweil 3000 (K3000)Kurzweil 3000 (General)General Information: Cepstral voices incompatible with OS 10.9.x and up

1.15. General Information: Cepstral voices incompatible with OS 10.9.x and up

Last Update: August 2016


The Cepstral voices bundled with older Kurzweil 3000 (K3000) software do not function on Mac OS 10.9.x or greater. When you attempt to read with the Cepstral voices, you'll receive a message that the voices are not registered.


The developer OEM Cepstral voices (the version of the voices bundled with Kurzweil 3000) are not compatible with OS 10.9.x or greater. Personal fully-licensed Cepstral voices should not experience this problem.


- Use the Alex voice or other voices bundled with your Mac OS

- Starting with K3000 v5.0.27 (our latest build of v5 or higher), we are now including free high quality Acepela voices with the Mac version of K3000. These Acepela voices are compatible with OS 10.9.x or greater. These voices have to be installed separately. The installer files for these voices can be found in the Extras folder on the disc image (the .dmg file you download to update).

If you own K3000 v4 or ealier, please contact sales to inquire about upgrading to the latest version of K3000: https://www.kurzweiledu.com/ContactSales.php

If you own K3000 v5 or greater, Move to Trash your older version of the app and replace it with the latest (i.e. update your version of the software). Make sure you download the correct version you should be using and own. For example, if you own version 5 Standalone, you'll need to make sure you download the latest build/version of v5 Standalone. If you own version 14 Web License, make sure to download v14 Web License.

You can download the latest builds of K3000 here: https://www.kurzweiledu.com/k3mac

Identifying your Mac OS X version:

If you are not sure of what version Mac OS X is on your computer, simply click the Apple icon in the top-left hand corner of your screen and then select About this Mac. This will display your Mac OS X version.

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