同时使用两个 AVSpeechSynthesizer 实例

Question

我想同时使用两个 AVSpeechSynthesizer 实例。

let firstSynthesizer = AVSpeechSynthesizer()
let secondSynthesizer = AVSpeechSynthesizer()

func foo() {
   let utterance = AVSpeechUtterance(string: "Foo Foo Foo Foo Foo")
   utterance.rate = 0.4
   utterance.voice = AVSpeechSynthesisVoice(language: "en-US")
   firstSynthesizer.speak(utterance)
}

func bar() {
   let utterance = AVSpeechUtterance(string: "Bar Bar Bar Bar Bar")
   utterance.rate = 0.4
   utterance.voice = AVSpeechSynthesisVoice(language: "en-US")
   secondSynthesizer.speak(utterance)
}

当我调用foo()和bar()时，文本不是同时阅读而是一个接一个阅读。

Answer 1

I would like to use two instances of AVSpeechSynthesizer simultaneously.

iOS12肯定不行，一次只处理一个语音合成。

但是an audio session可以和语音合成一起播放

同时使用两个 AVSpeechSynthesizer 实例

Using two instances of AVSpeechSynthesizer simultaneously

ios

avspeechsynthesizer

swift

avspeechutterance