我一直在寻找解决方案,但我看到的所有解决方案都令人困惑,所以我想我应该创建一个新问题。
我正在使用语音库,我希望识别任务在没有用户输入的情况下 2 秒后停止。我知道我想使用计时器,但我无法弄清楚将其放在哪里以及如何更新它。
按下录制按钮时启动计时器,按下停止录制按钮时使其无效。
但是我在哪里检查用户是否添加了新输入?我正在考虑保存最后一个转录并将其与下一个转录进行比较:当它们不同时,重置计时器。
这是我的代码的样子:
recognitionTask = speechRecognizer.recognitionTask(with: recognitionRequest) { result, error in
var isFinal = false
if let result = result {
self.textView.text = result.bestTranscription.formattedString
// Should I compare the result here to see if it changed?
isFinal = result.isFinal
}
// Or should I do it here? In what order is this code even running?
if error != nil || isFinal {
self.result = self.textView.text
self.audioEngine.stop()
inputNode.removeTap(onBus: 0)
self.recognitionRequest = nil
self.recognitionTask = nil
self.recordButton.isEnabled = true
self.recordButton.setTitle("Start Recording", for: [])
}
}
这就是最终为我工作的:
func restartSpeechTimer() {
timer?.invalidate()
timer = Timer.scheduledTimer(withTimeInterval: 1.5, repeats: false, block: { (timer) in
// Do whatever needs to be done when the timer expires
})
}
识别任务内部:
var isFinal = false
if letresult = result {
// do something with the result
isFinal = result.isFinal
}
if iFinal {
self.stopRecording()
}
else if error == nil {
self.restartSpeechTimer()
}
直到现在我也遇到了同样的问题。检查了你的问题,我想下面的代码可以帮助你实现我所做的同样的事情。
recognitionTask = speechRecognizer?.recognitionTask(with: recognitionRequest, resultHandler: { (result, error) in
var isFinal = false
if result != nil {
self.inputTextView.text = result?.bestTranscription.formattedString
isFinal = (result?.isFinal)!
}
if let timer = self.detectionTimer, timer.isValid {
if isFinal {
self.inputTextView.text = ""
self.textViewDidChange(self.inputTextView)
self.detectionTimer?.invalidate()
}
} else {
self.detectionTimer = Timer.scheduledTimer(withTimeInterval: 1.5, repeats: false, block: { (timer) in
self.handleSend()
isFinal = true
timer.invalidate()
})
}
})
这会检查是否在 1.5 秒内未收到输入。
取得阶级财产
var beforeRecordingTime: CFAbsoluteTimeGetCurrent?
let pauseDurationTimeout: Double = 3
并且就在
recognitionTask
方法初始化之前
beforeRecordingTime = CFAbsoluteTimeGetCurrent()
recognitionTask = speechRecognizer?.recognitionTask(with: request, resultHandler: { [weak self] result, error in
guard let self else { return }
if let result = result {
let bestString = result.bestTranscription.formattedString
if let beforeRecordingTime = self.beforeRecordingTime {
let durationOfPause = CFAbsoluteTimeGetCurrent() - beforeRecordingTime
if durationOfPause > pauseDurationTimeout {
//You can stop recording here 👈
return
}
}
}
})
不要忘记在 stopRecording 方法中设置
beforeRecordingTime
nil 。