avspeechsynthesizer

问题 I am trying to create a TTS to file in Objc. Since iOS13 can write it to a file. But I'm stuck with writeUtterance:toBufferCallback. Do someone has an exemple with this function in objc? [synth speakUtterance:utterance]; 回答1: Referring to the potential answer in Swift, this would be the Objective-C implementation AVSpeechSynthesizer *synthesizer = [[AVSpeechSynthesizer alloc] init]; AVSpeechUtterance *utterance = [[AVSpeechUtterance alloc] initWithString:@"test 123"]; AVSpeechSynthesisVoice

问题 I want to use iOS 7 new speech synthezis API, and my application is localized in french & english,german,japanese,etc.i want set language code to read text.How to get language code? utterance.voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"en-ZA"]; 回答1: You can set one of the bellow language: for (AVSpeechSynthesisVoice *voice in [AVSpeechSynthesisVoice speechVoices]) { NSLog(@" %@", voice.language); } or use default locale: AVSpeechSynthesizer *synthesizer = [[AVSpeechSynthesizer alloc]

问题 Using the speech to text feature I can easily get one label to be spoken. But I want utterance2 to be joined to utterance. I want utterance to be spoken first then when it is finished for utterance2 to be spoken right after. let utterance = AVSpeechUtterance(string: dptext.text!) let utterance2 = AVSpeechUtterance(string: dptext2.text!) let synthesizer = AVSpeechSynthesizer() synthesizer.speak(utterance) 回答1: I think the simplest way to handle this situation is to combine the two string with

问题 AVSpeechSynthesizer seems to support english with multi delegates (britsh, us...) Does it support other languages? french, Portuguese ... is there a list of these languages somewhere ? 回答1: Yes, it does. Use speechVoices of AVSpeechSynthesisVoice to get a list of available voices with supported languages. Currently (as of 10 September 2018, on iOS 10.3.1 and 11.4.1) you'll find these: ar-SA cs-CZ da-DK de-DE el-GR en-AU en-GB en-IE en-US en-ZA es-ES es-MX fi-FI fr-CA fr-FR he-IL hi-IN hu-HU

问题 Can I change the pitch of the voice in AVSpeechSynthesizer or putting any effects on the output voice from it so it could sound differently? 回答1: Yes, you can change the pitch and the rate of the spoken sentence. The AVSpeechUtterance class has two relevant properties: pitchMultiplier: Float (value between 0.5 (lowest pitch) to 2.0 (highest pitch)). The default pitch is 1.0 . rate: Float (value between two constants: AVSpeechUtteranceMinimumSpeechRate (the slowest rate of speech) and

问题 AVSpeechsynthesizer with the en-us voice is pronunciation for "A" is "Capital A" but Just want "A" How can do that? 回答1: This only happens when there is single character in the string, you can use this workaround of checking if lenght of string is 1 than convert it to lowercase string, NSString *stringToUtter = @"A"; if (stringToUtter.length==1) { stringToUtter = [stringToUtter lowercaseString]; } AVSpeechUtterance *utterance = [[AVSpeechUtterance alloc] initWithString:stringToUtter];

问题 I would like to use AVSpeechSynthesizer to output sound on only one audio channel of a multi-channel surround sound setup. For example, in a 5.1 system, I would like it to output on just the right-surround channel. Right now I have: let synthesizer = AVSpeechSynthesizer() let utterance = AVSpeechUtterance(string: "This is the right channel") synthesizer.speakUtterance(utterance) ...however it outputs on both the left and right channels. 来源： https://stackoverflow.com/questions/32558183/any-way

问题 I would like to use AVSpeechSynthesizer to output sound on only one audio channel of a multi-channel surround sound setup. For example, in a 5.1 system, I would like it to output on just the right-surround channel. Right now I have: let synthesizer = AVSpeechSynthesizer() let utterance = AVSpeechUtterance(string: "This is the right channel") synthesizer.speakUtterance(utterance) ...however it outputs on both the left and right channels. 来源： https://stackoverflow.com/questions/32558183/any-way

问题 I want to convert "words per minute" to speech rate of AVSpeechUtterance . How can I do this? And can I get total time length of text using speech rate? My code: - (AVSpeechUtterance*)convertTextToSpeak:(NSString*)textToSpeak { AVSpeechUtterance *speechUtterance = [[AVSpeechUtterance alloc] initWithString:textToSpeak]; speechUtterance.rate = 0.2; // default = 0.5 ; min = 0.0 ; max = 1.0 speechUtterance.pitchMultiplier = 1.0; // default = 1.0 ; range of 0.5 - 2.0 speechUtterance.voice = [self

问题 I'm trying to integrate text to speech functionality in my iOS app. For this I'm using AVSpeechUtterance and AVSpeechSynthesisVoice classes of AVFoundation framework. extension String { func speech(with pronunciation: String) { let utterance = AVSpeechUtterance(attributedString: NSAttributedString(string: self, attributes: [.accessibilitySpeechIPANotation : pronunciation])) utterance.voice = AVSpeechSynthesisVoice(language: "en-US") let synth = AVSpeechSynthesizer() DispatchQueue.main.async {