swift - 使用 NSSpeechRecognizer Swift 触发声音 play()

Question

我试图在说出一个词后触发声音。当我说出该单词时，语音识别器会识别该单词，并且我已将其设置为每次我说出该命令时它都会输出一个字符串。我想做的是在我说出特定单词后触发声音。这就是我到目前为止所拥有的。

import Cocoa
import AVFoundation

class ViewController: NSViewController, NSSpeechRecognizerDelegate {

var ping = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("ping", ofType: "mp3")!)
var pingAudioPlayer = AVAudioPlayer()

var sr = NSSpeechRecognizer()
@IBOutlet var output: NSTextView?


override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view.
    pingAudioPlayer = AVAudioPlayer(contentsOfURL: ping, error: nil)

    sr.delegate = self
    sr.commands = ["Ping", "Ping Mac"]
    sr.startListening()

}

func speechRecognizer(sender: NSSpeechRecognizer, didRecognizeCommand command: AnyObject?) {
    output!.string! += "\(command)\n"
    pingAudioPlayer.play()
}
override var representedObject: AnyObject? {
    didSet {
    // Update the view, if already loaded.
    }
}

更新:

import Cocoa
import AVFoundation

class ViewController: NSViewController, NSSpeechRecognizerDelegate {

var ping = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("ping", ofType: "mp3")!)
let pingAudioPlayer = AVAudioPlayer()

var sr = NSSpeechRecognizer()
@IBOutlet var output: NSTextView?


override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view.
    sr.delegate = self
    sr.commands = ["Ping", "Ping Mac"]
    sr.startListening()


}

func speechRecognizer(sender: NSSpeechRecognizer, didRecognizeCommand command: AnyObject?) {
    output!.string! += "\(command)\n"
    var pingAudioPlayer = AVAudioPlayer(contentsOfURL: ping, error: nil)
    pingAudioPlayer.prepareToPlay()
    pingAudioPlayer.play()
}
override var representedObject: AnyObject? {
    didSet {
    // Update the view, if already loaded.
    }
}

}

不知道为什么音频播放器在识别单词后不播放声音。有什么想法吗？

Answer 1

您没有告诉音频播放器要播放哪种声音。试试这个:

func speechRecognizer(sender: NSSpeechRecognizer, didRecognizeCommand command: AnyObject?) {

do{
    let pingAudioPlayer = try AVAudioPlayer(contentsOfURL:ping)
    pingAudioPlayer.prepareToPlay()
    pingAudioPlayer.play()
}catch {
    print("Error getting the audio file")
 }
}