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AVSpeechSynthesizer Text-To-Speech

AVSpeechsynthesizer with en-us voice - the pronunciation for "A" is "Capital A" but just "A" How to do it?

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This only happens when there is one character in the string,

you can use this workaround to check if string length is 1, than convert it to string string,



NSString *stringToUtter = @"A";
if (stringToUtter.length==1) {
    stringToUtter = [stringToUtter lowercaseString];
}
AVSpeechUtterance *utterance = [[AVSpeechUtterance alloc] initWithString:stringToUtter];
utterance.rate = AVSpeechUtteranceMinimumSpeechRate;
utterance.voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"en-us"];
[self.synthesizer speakUtterance:utterance];
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Perfect pronunciation can be achieved thanks to the IPA (International Phonetic Alphabet) notation , without the need for a workaround. : ABOUT)

Place the value attributedString

AVSpeechUtterance

with the appropriate attribute as an input instance parameter AVSpeechUtterance

.



To get phonemes , I suggest using the iPhone feature located in Settings > General > Accessibility > Speech > Pronunciations

(iOS 12) ⟹, if you need more information, check out this WWDC 2018 video summary) .

Helpful implementation information can also be found in this answer .

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