kSpeechErrorCallbackCharacterOffset
The character index in the text being synthesized when the error occurred (the string representing the text is in Kspeecherrorcallbackspokenstring).
Declaration
let kSpeechErrorCallbackCharacterOffset: CFStringThe character index in the text being synthesized when the error occurred (the string representing the text is in Kspeecherrorcallbackspokenstring).
let kSpeechErrorCallbackCharacterOffset: CFString