Explanation to all of you who are confused about the voices in iOS 7
By Adi Kushnir, 19 September, 2013
iOS and iPadOS
As one who uses the new Nuance Vocalizer Expressive voices to develop with them for other platforms, I wanna to explain to you all, what are the iOS 7 voices and which of them are being used when.
So, let's start from sirie:
The new and better Sirie voices are not Vocalizer Expressive voices.
These are custom voices that Nuance or some other company makes a specially for Apple, I think it's Nuance because Apple always works with them on TTS related stuff.
Now, let's move on to VoiceOver:
In iOS 6, Apple used the Nuance Vocalizer for automotive version 5.5 platform for it's screen reader and Sirie.
Since Nuance stopped supporting and developing Vocalizer for Automotive, and released Vocalizer Expressive, in iOS 7, Apple has swiched to using these voices for VoiceOver.
Most of them sound the same as the previous generation of Vocalizer, such as Samantha Premium for example, they just read longer texts better.
The Vocalizer Expressive platform contains some new and very expressive voices, but Apple decided to use the ones that wer already available, because they are still offerd with Vocalizer Expressive, or VE for short.
Some other facts that thanks to them you can know it's the new Expressive version, are the bad compact voices, a specially Daniel, and the new voices for some languages such as Arabic, they have replaced Maged with Tarik for this language because Nuance doesn't offer Maged any more.
Vocalizer Expressive has a Hebrew voice as well, so I hope Apple will add it soon too:) (Smile).
Hope now you understand it better..