【发布时间】：2023-11-08 00:04:01
【问题描述】：
我有以下代码：
let speechRecognizer = SFSpeechRecognizer()!
let audioEngine = AVAudioEngine()
var recognitionRequest = SFSpeechAudioBufferRecognitionRequest()
var recognitionTask = SFSpeechRecognitionTask()
var audioPlayer : AVAudioPlayer!
override func viewDidLoad() {
super.viewDidLoad()
playSound(sound: "oops")
speechRecognizer.delegate = self
requestSpeechAuth()
}
func requestSpeechAuth(){
SFSpeechRecognizer.requestAuthorization { (authStatus) in
OperationQueue.main.addOperation({
switch authStatus {
case.authorized:
print("authorized")
case.denied:
print("denied")
case.restricted:
print("restricted")
case.notDetermined:
print("not determined")
}
})
}
}
// Function called when I press on my record button
func SpeechButtonDown() {
print("Start recording")
if audioEngine.isRunning {
endRecording() {
} else {
do {
let audioSession = AVAudioSession.sharedInstance()
try audioSession.setCategory(AVAudioSessionCategoryRecord)
try audioSession.setMode(AVAudioSessionModeMeasurement)
try audioSession.setActive(true, with: .notifyOthersOnDeactivation)
if let inputNode = audioEngine.inputNode {
recognitionRequest.shouldReportPartialResults = true
recognitionTask = speechRecognizer.recognitionTask(with: recognitionRequest, resultHandler: { (result, error) in
print("1")
if let result = result {
self.instructionLabel.text = result.bestTranscription.formattedString
print("2")
if result.isFinal {
self.audioEngine.stop()
inputNode.removeTap(onBus: 0)
if self.instructionLabel.text != "" {
self.compareWordwithVoice()
}
}
}
})
let recognitionFormat = inputNode.outputFormat(forBus: 0)
inputNode.installTap(onBus: 0, bufferSize: 1024, format: recognitionFormat, block: { (buffer, when) in
self.recognitionRequest.append(buffer)
})
audioEngine.prepare()
try audioEngine.start()
}
} catch {
}
}
}
// Function called when I release the record button
func EndRecording() {
endRecording()
print("Stop recording")
}
func endRecording() {
audioEngine.stop()
recognitionRequest.endAudio()
audioEngine.inputNode?.removeTap(onBus: 0)
}
func playSound(sound: String) {
if let url = Bundle.main.url(forResource: sound, withExtension: "wav") {
do {
audioPlayer = try AVAudioPlayer(contentsOf: url)
guard let player = audioPlayer else { return }
player.prepareToPlay()
player.play()
print("tutu")
} catch let error {
print(error.localizedDescription)
}
}
}
func compareWordwithVoice() {
let StringToLearn = setWordToLearn()
print("StringToLearn : \(StringToLearn)")
if let StringRecordedFull = instructionLabel.text{
let StringRecorded = (StringRecordedFull as NSString).replacingOccurrences(of: " ", with: "").lowercased()
print("StringRecorded : \(StringRecorded)")
if StringRecorded == "appuyezsurleboutonendessousetprenoncezl’expression" {
print("not yet")
} else {
if StringToLearn == StringRecorded {
playSound(sound: "success")
print("success")
// update UI
} else {
playSound(sound: "oops")
print("oops")
// update UI
}
}
}
}
func setWordToLearn() -> String {
if let wordToLearnFull = expr?.expression {
print(wordToLearnFull)
var wordToLearn = (wordToLearnFull as NSString).replacingOccurrences(of: " ", with: "").lowercased()
wordToLearn = (wordToLearn as NSString).replacingOccurrences(of: ".", with: "")
wordToLearn = (wordToLearn as NSString).replacingOccurrences(of: "!", with: "")
wordToLearn = (wordToLearn as NSString).replacingOccurrences(of: "?", with: "")
wordToLearn = (wordToLearn as NSString).replacingOccurrences(of: ",", with: "")
wordToLearn = (wordToLearn as NSString).replacingOccurrences(of: "/", with: "")
print(wordToLearn)
return wordToLearn
}
print("no wordToLearn")
return ""
}
问题是 playSound 在 viewDidLoad 中时可以正常工作，但在被 compareThing() 函数调用时无法正常工作，但在两种情况下都会显示“tutu”，因此每次都会执行 playSound 函数。
如果 AVAudioPlayer 和 AVAudioEngine 不能同时工作，会出现问题吗？
谢谢
【问题讨论】：
-
是的，我没有把代码放在我使用它的地方。它在另一个函数中。
-
据我所知，您在
if和else中都调用了播放声音。在这两个语句中都调用了该函数是正常的 -
好的，我明白了。我编辑帖子并放置整个代码。泰
-
谁能帮我解决这个问题？
标签： swift avaudioplayer avaudioengine