Infovox iVox provides Mac OS X users with the best text-to-speech voices ever on the Mac. You won't believe your ears hearing these natural-sounding voices, available in many different languages. What is more, they can be used in any Mac OS X application that uses speech.
The Infovox iVox voices, once installed on the computer, appear in the Speech panel of the System Preferences and can be used by any application that has speech functionality, including Preview, TextEdit, Mail, Microsoft Word (through its Speech toolbar), VisioVoice, Proloquo, GhostReader, Acrobat, AppleScript, Automator, Kurzweil 3000 for Macintosh (version 3.0.4. and higher), TextHelp Read and Write Gold for Mac (version 2.1 and higher) and many others.
You can also use Infovox iVox with Mac OS X built-in speech and accessibility features. Including the Mac OS X built-in VoiceOver screen reader.
Infovox iVox includes all voices available for a language of choice. The following languages are available: American English, British English, French, Canadian French, German, Italian, Dutch, Finnish, Flemish, Spanish, American Spanish, Portuguese, Brazilian Portuguese, Norwegian, and Swedish.
Infovox iVox voices are sold per language with each language consisting of one or more male and/or female voices. All languages contain the American English Heather voice as a bonus. American English even includes two child voices. If you want to have multiple languages, you can buy Infovox iVox plus one or more language packs at half price.
Infovox iVox 1.2 is a free upgrade for existing users that adds a pronunciation editor that allows users to add abbreviations or change the pronunciation of words.
It also introduces a number of new voices and languages: Eliska and Sabrine for Czech, Ania for Polish, Snorri for Icelandic, Sanna for Finnish, Elin for Swedish, and Baris and Ceren for Turkish. The Czech, Polish, Icelandic and Turkish voices require Mac OS X 10.5. The other voices require 10.3.9 or later.
There are also a number of new educational licenses available: The Infovox iVox - GhostReader Teacher Kit and an Educational Audio Use and Publishing License.
The American voice pack comes with several voices. However, only the HQ voices are of any real quality. The HD voices sound more robotic than even the low-quality voices that come with the Mac. There are five HQ voices.
However, narrowing them down a bit further, the child voices, Kenny and Nelly, are just high-pitched versions of other voices. That leaves you with three truly high-quality voices, Heather, Laura, and Ryan.
At $99 for the voice pack, that puts the best voices at about $33 each (no you can’t purchase them individually), $13 more than the individual Cepstral voices. The best voice of the bunch, Ryan, however, sounds excellent (aside from a few ideosyncrasies).
The worst trait of the Infovox Ivox voices is that they pronounce some punctuation marks, such as asterisks and dashes. This is especially annoying in e-mails when these characters are used as separators such as:
*********************************************************************
When the voices get to such strings, they insist on stupidly saying, “asterisk asterisk asterisk asterisk asterisk asterisk asterisk asterisk asterisk” ad nauseum.
Apple's voices have not read punctuation marks like these for over a decade. Come on Acapella, what were you thinking? Get with the program! This is ridiculous when a natural sounding voice suddenly starts reading “asterisk asterisk asterisk” or “dash dash dash dash dash dash dash dash dash dash” etc.This is pointless and unnatural. And annoying.